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WO2003076167A1 - Procede pour relier des substrats plastiques transparents - Google Patents

Procede pour relier des substrats plastiques transparents Download PDF

Info

Publication number
WO2003076167A1
WO2003076167A1 PCT/EP2003/002019 EP0302019W WO03076167A1 WO 2003076167 A1 WO2003076167 A1 WO 2003076167A1 EP 0302019 W EP0302019 W EP 0302019W WO 03076167 A1 WO03076167 A1 WO 03076167A1
Authority
WO
WIPO (PCT)
Prior art keywords
adhesive
transparent
radiation
joint
adhesive joint
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/EP2003/002019
Other languages
German (de)
English (en)
Inventor
Julius Herold
Robert Magunia
Manfred Rein
Silvia GRÜNEWALD
Rolf Wirth
Thorsten HÜLSMANN
Kai BÄR
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Henkel AG and Co KGaA
Original Assignee
Henkel AG and Co KGaA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Henkel AG and Co KGaA filed Critical Henkel AG and Co KGaA
Priority to AU2003210375A priority Critical patent/AU2003210375A1/en
Priority to EP03743824A priority patent/EP1483102A1/fr
Publication of WO2003076167A1 publication Critical patent/WO2003076167A1/fr
Priority to US10/931,912 priority patent/US20050087290A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/67—Unsaturated compounds having active hydrogen
    • C08G18/69—Polymers of conjugated dienes
    • C08G18/698—Mixtures with compounds of group C08G18/40
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
    • B29C65/1403—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation characterised by the type of electromagnetic or particle radiation
    • B29C65/1412—Infrared [IR] radiation
    • B29C65/1416—Near-infrared radiation [NIR]
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
    • B29C65/1429—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation characterised by the way of heating the interface
    • B29C65/1435—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation characterised by the way of heating the interface at least passing through one of the parts to be joined, i.e. transmission welding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
    • B29C65/1477—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation making use of an absorber or impact modifier
    • B29C65/1483—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation making use of an absorber or impact modifier coated on the article
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/4805—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the type of adhesives
    • B29C65/483—Reactive adhesives, e.g. chemically curing adhesives
    • B29C65/4835—Heat curing adhesives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/124—Tongue and groove joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/13—Single flanged joints; Fin-type joints; Single hem joints; Edge joints; Interpenetrating fingered joints; Other specific particular designs of joint cross-sections not provided for in groups B29C66/11 - B29C66/12
    • B29C66/131—Single flanged joints, i.e. one of the parts to be joined being rigid and flanged in the joint area
    • B29C66/1312—Single flange to flange joints, the parts to be joined being rigid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/32—Measures for keeping the burr form under control; Avoiding burr formation; Shaping the burr
    • B29C66/322—Providing cavities in the joined article to collect the burr
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/32—Measures for keeping the burr form under control; Avoiding burr formation; Shaping the burr
    • B29C66/324—Avoiding burr formation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/54—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/54—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles
    • B29C66/542—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles joining hollow covers or hollow bottoms to open ends of container bodies
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
    • C08G18/72—Polyisocyanates or polyisothiocyanates
    • C08G18/77—Polyisocyanates or polyisothiocyanates having heteroatoms in addition to the isocyanate or isothiocyanate nitrogen and oxygen or sulfur
    • C08G18/78—Nitrogen
    • C08G18/79—Nitrogen characterised by the polyisocyanates used, these having groups formed by oligomerisation of isocyanates or isothiocyanates
    • C08G18/798—Nitrogen characterised by the polyisocyanates used, these having groups formed by oligomerisation of isocyanates or isothiocyanates containing urethdione groups
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J175/00—Adhesives based on polyureas or polyurethanes; Adhesives based on derivatives of such polymers
    • C09J175/04—Polyurethanes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
    • B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
    • B29C35/08—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation
    • B29C35/0805—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation
    • B29C2035/0822—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation using IR radiation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/4805—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the type of adhesives
    • B29C65/481—Non-reactive adhesives, e.g. physically hardening adhesives
    • B29C65/4815—Hot melt adhesives, e.g. thermoplastic adhesives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/4805—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the type of adhesives
    • B29C65/483—Reactive adhesives, e.g. chemically curing adhesives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/4865—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding containing additives
    • B29C65/487—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding containing additives characterised by their shape, e.g. being fibres or being spherical
    • B29C65/4875—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding containing additives characterised by their shape, e.g. being fibres or being spherical being spherical, e.g. particles or powders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2025/00—Use of polymers of vinyl-aromatic compounds or derivatives thereof as moulding material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2033/00—Use of polymers of unsaturated acids or derivatives thereof as moulding material
    • B29K2033/04—Polymers of esters
    • B29K2033/12—Polymers of methacrylic acid esters, e.g. PMMA, i.e. polymethylmethacrylate
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2069/00—Use of PC, i.e. polycarbonates or derivatives thereof, as moulding material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2709/00—Use of inorganic materials not provided for in groups B29K2703/00 - B29K2707/00, for preformed parts, e.g. for inserts
    • B29K2709/08—Glass
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
    • B29L2031/3055—Cars
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/747—Lightning equipment
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/0008—Organic ingredients according to more than one of the "one dot" groups of C08K5/01 - C08K5/59
    • C08K5/0016—Plasticisers

Definitions

  • the invention relates to a method for connecting transparent plastic substrates with thermoplastic or thermosetting plastic substrates as well as its use for the manufacture of lamp housings for vehicle lights or vehicle headlights.
  • a first component for example a headlight housing
  • a second component for example a glass cover or cover plate
  • both components are sealingly connected to one another.
  • cover or cover disks or glass diffusers there are often also disks made of transparent plastic substrates, preferably made of polymethyl methacrylate (PMMA) or polycarbonate (PC).
  • PMMA polymethyl methacrylate
  • PC polycarbonate
  • a method for connecting parts made of plastic in which the side wall of a first component has a U-shaped sealing bed, into which the side wall of a second component is inserted, a liquid adhesive / sealing compound after the joining is introduced into the sealing bed via side openings.
  • Hardenable non-elastic materials such as e.g. hot or cold curing polyester mixtures, epoxy resin combinations or thermoplastics proposed.
  • rubber mixtures e.g. Silicone rubber suggested.
  • Such manufacturing processes are time consuming and require a lot of manual work.
  • WO 96/24643 proposes hot melt adhesives for joining glass-like plastic materials with thermoplastic or thermosetting plastic materials.
  • these are to be used for connecting light panes to lamp housings of vehicle lights or vehicle headlights.
  • hotmelt adhesives which contain grafted thermoplastic elastomers, possibly grafted poly- ⁇ -olefins, adhesive resins and polyisobutylenes.
  • Reactive hot melt adhesives are proposed, which obtain their final strength through a subsequent crosslinking reaction.
  • EP 1108771 A2 describes a method for producing a joint connection between a first component and a second component, in which a removable adhesive sealant is applied in the solid state to a sealing bed area of the first component and the two components are joined together. To remove the adhesive sealing compound, it is grasped at a free end and pulled out of the sealing bed in the extension of a planar direction of the sealing bed which is directed away from the two components, with almost no residue.
  • the inventors have set themselves the task of providing a method for connecting molded parts, in particular lamp housings, which allows a rapid joining and manufacturing process and leads to permanent gluing of the components.
  • the solution to the problem according to the invention can be gathered from the patent claims; it essentially consists in that at least one component in the region of the adhesive joint is transparent to the electromagnetic radiation.
  • This component preferably consists of glass or a transparent plastic.
  • transparent plastic materials are, in particular, plexiglass (polymethyl methacrylate, PMMA), polycarbonate (PC) or polystyrene and styrene copolymers.
  • at least essential parts of the radiation which heats the adhesive lie in the wavelength range of the near infrared.
  • Near infrared radiation (near infrared radiation) in the sense of this invention is to be understood to mean electromagnetic radiation which directly follows the visible light on the long-wave side, preferably a wavelength range between 0.7 ⁇ m and 1.5 ⁇ m.
  • Near IR is also called “Near-Infra-Red” in scientific literature. It is known that infrared radiation has the highest energy density and very advantageous properties in this wavelength range. In particular, it has been shown that, in contrast to the longer-wave IR radiation, the near IR radiation can penetrate deeper into the adhesive volume to be heated and not only heats the surface of the adhesive layer.
  • the near IR radiation can be used with suitable Focus devices very well with little effort, so that a directed near IR radiation with high energy content is available, which enables very short heating times of the adhesive layer to be activated in the range of a few seconds, without overheating a thermally sensitive substrate.
  • the near IR radiation source preferably has a temperature radiator which can be operated at emission temperatures of 2500 K or higher, preferably at 2900 K or higher. Such radiation sources are preferably halogen lamps.
  • the near IR radiation source unit is designed in such a way that it either covers the entire adhesive joint at once during curing or "travels" on a predetermined path. In both cases, a control unit regulates the energy input and thus the temperature of the adhesive layer to be heated via sensors.
  • thermosetting adhesive that can be cured with near-IR radiation is based on a non-aqueous dispersion that contains at least one polyisocyanate that is only deactivated on the surface and solid at room temperature and at least one polymer that is reactive with isocyanate.
  • the thermosetting adhesive fulfills, in addition to its adhesive, i.e. structural strength of the bonding effect, a sealing function of the components.
  • the binder of the thermosetting adhesives / sealants contains polyols such as Polyether polyols, polyester polyols, polyacrylate polyols, polyolefin polyols and / or polyether ester polyols, polyether amines and a finely divided, solid di- or polyisocyanate which is deactivated on its surface during dispersion in the polyol / polyamine mixture.
  • polyols such as Polyether polyols, polyester polyols, polyacrylate polyols, polyolefin polyols and / or polyether ester polyols, polyether amines and a finely divided, solid di- or polyisocyanate which is deactivated on its surface during dispersion in the polyol / polyamine mixture.
  • the adhesive / sealant generally contains fillers, possibly powdered molecular sieve or other water-binding components, as well as catalysts.
  • polyols A large number of higher molecular weight polyhydroxy compounds can be used as polyols.
  • Suitable polyols are preferably the polyethers which are liquid at room temperature and have two or three hydroxyl groups per molecule in the molecular weight range from 400 to 30,000, preferably in the range from 1,000 to 15,000. Examples are di- and / or trifunctional polypropylene glycols, but also statistical and / or block copolymers of ethylene oxide and propylene oxide can be used.
  • Another group of polyethers which are preferably to be used are the polytetramethylene glycols (poly (oxytetramethylene) glycol, poly-THF), which are prepared, for example, by the acidic polymerization of tetrahydrofuran.
  • the molecular weight range of the polytetramethylene glycols is between 200 and 6000, preferably in the range from 800 to 5000.
  • liquid, glass-like amorphous or crystalline polyesters which are obtained by condensation of di- or tricarboxylic acids, e.g. Adipic acid, sebacic acid, glutaric acid, azelaic acid, suberic acid, undecanedioic acid, dodecanedioic acid, 3,3-dimethylglutaric acid, terephthalic acid, isophthalic acid, hexahydrophthalic acid, dimer fatty acid or mixtures thereof with low molecular weight diols or triols such as e.g.
  • di- or tricarboxylic acids e.g. Adipic acid, sebacic acid, glutaric acid, azelaic acid, suberic acid, undecanedioic acid, dodecanedioic acid, 3,3-dimethylglutaric acid, terephthalic acid, isophthalic acid, hexahydrophthalic acid, dimer fatty acid or mixtures thereof with low
  • Ethylene glycol, propylene glycol, diethylene glycol, triethylene glycol, dipropylene glycol, 1, 4-butanediol, 1, 6-hexanediol, 1, 8-octanediol, 1, 10-decanediol, 1, 12-dodecanediol, dimer fatty alcohol, glycerol, trimethylolpropane or mixtures thereof can be produced.
  • Another group of the polyols to be used according to the invention are the polyesters based on ⁇ -caprolactone, also called "polycaprolactones".
  • polyester polyols of oleochemical origin can also be used.
  • Such polyester polyols can be prepared, for example, by completely ring opening epoxidized triglycerides of a fat mixture containing at least partially olefinically unsaturated fatty acids with one or more alcohols with 1 to 12 C atoms and then partially transesterifying the triglyceride derivatives to alkyl ester polyols with 1 to 12 C atoms in the alkyl radical .
  • Other suitable polyols are polycarbonate polyols and dimer diols (from Henkel) and preferably castor oil and its derivatives and / or hydroxy-functional polybutadienes, such as those e.g. are available under the trade name "Poly-bd" can be used as polyols for the compositions according to the invention.
  • polyols are linear and / or weakly branched acrylic ester copolymer polyols which, for example, by the radical copolymerization of acrylic acid esters or methacrylic acid esters with hydroxy-functional acrylic acid and / or methacrylic acid compounds such as hydroxyethyl (meth) acrylate or hydroxypropyl (meth) acrylate can be produced. Because of this method of preparation, the hydroxyl groups in these polyols are generally randomly distributed, so that it is these are either linear or weakly branched polyols with average OH functionality.
  • Preferred di- or trifunctional amino-terminated polymers are amino-terminated polyalkylene glycols, in particular the difunctional amino-terminated polypropylene glycols, polyethylene glycols or copolymers of propylene glycol and ethylene glycol. These are also known under the name "Jeffamine” (trade name of the Huntsman company).
  • the difunctional amino-terminated polyoxytetramethylene glycols, also called poly-THF are also suitable.
  • difunctional amino-terminated polybutadiene compounds are suitable as structural components, and aminobenzoic acid esters of polypropylene glycols, polyethylene glycols or poly-THF (known under the trade name "Versalink oligomeric Diamines" from Air Products).
  • the amino-terminated polyalkylene glycols or polybutadienes have molecular weights between 400 and 6000.
  • Suitable solid surface-deactivatable polyisocyanates are all solid di- or polyisocyanates or mixtures thereof, provided that they have a melting point above +40 ° C. It can be aliphatic, cycloaliphatic, heterocyclic or aromatic polyisocyanates.
  • Examples include: diphenylmethane-4,4'-diisocyanate (4,4'-MDI), dimeric 4,4'-MDI, naphthalene-1,5-diisocyanate (NDI), 3,3'-dimethylbiphenyl- 4,4'-diisocyanate (TODI), dimeric 1-methyl-2,4-phenylene diisocyanate (TDI-U), 3,3'-diisocyanato-4,4'-dimethyl-N, N'-diphenylurea (TDIH ), Addition product of 2 moles of 4,4'-MDI with 1 mole of diethylene glycol, addition product of 2 moles of 1-methyl-2,4-phenylene diisocyanate with 1 mole of 1, 2-ethanediol or 1, 4-butanediol, the isocyanurate of IPDI (IPDI-T).
  • IPDI-T isocyanurate of IPDI
  • the solid polyisocyanates should preferably be in powder form with an average particle size diameter of less than or equal to 10 ⁇ m (weight average). They are generally obtained in the synthesis as a powder with the required particle sizes of 10 ⁇ m or less, otherwise the solid polyisocyanates (before the deactivation reaction) have to be brought into the particle range according to the invention by grinding processes and / or sieving processes. The processes are state of the art. Alternatively, the powdery polyisocyanates can be brought to an average particle size of equal to or less than 10 ⁇ m by wet grinding and fine dispersion downstream of the surface deactivation.
  • Dispersing devices of the rotor-stator type, agitator ball mills, bead and sand mills, ball mills and friction mills are suitable for this.
  • the deactivated polyisocyanate is ground in the presence of the deactivating agent or in the non-reactive dispersant with subsequent deactivation.
  • the ground and surface-stabilized polyisocyanate can also be separated from the grinding dispersions and, if necessary, dried. The method is described in EP 204 970.
  • the surface stabilization reaction can be carried out in various ways:
  • the solid polyisocyanates are preferably deactivated by the action of primary and secondary aliphatic mono-, di- or polyamines, hydrazine derivatives, amidines, guanidines.
  • the aforementioned amino-terminated polypropylene glycols, polyethylene glycols or copolymers of propylene glycol and ethylene glycol are very particularly preferred
  • the concentration of the deactivating agent should be 0.1 to 20, preferably 0.5 to 8 equivalent percent, based on the total isocyanate groups present. Chalks, naturally ground or precipitated are preferably used as fillers
  • Calcium carbonates calcium magnesium carbonates (dolomite), silicates such as B.
  • Aluminum silicates, heavy spar or magnesium aluminum silicates or talc are used. Furthermore, other fillers, in particular reinforcing fillers such as carbon black, selected from the group of flame black, channel black, gas black or
  • Fuma blacks or their mixtures can also be used.
  • the adhesive can also be used.
  • Sealants according to the present invention contain plasticizers or plasticizer mixtures and catalysts, stabilizers and other auxiliaries and additives.
  • Suitable catalysts are tertiary amines, especially aliphatic amines with a cyclic structure. Also suitable among the tertiary amines are those which additionally carry groups which are reactive toward the isocyanates, in particular hydroxyl and / or amino groups.
  • dimethylmonoethanolamine Diethylmonoethanolamin, Methylethylmonoethanolamin, triethanolamine, Trimethanol- amine, tripropanolamine, tributanolamine, Trihexanolamin, Tripentanolamin, Tricyclohexanolamin, diethanol, Diethanolethylamin, Diethanolpropylamin, Diethanolbutylamin, Diethanolpentylamin, Diethanolhexylamin, Diethanolcyclohexylamin, diethanolphenylamine and their ethoxylation and propoxylation products, Diaza-bicyclo-octane (DABCO), triethylamine, dimethylbenzylamine (Desmorapid DB, BAYER), bis-dimethylaminoethyl ether (Calalyst A 1, UCC), tetramethylguanidine, bis-dimethylaminomethylphenol, 2- (2-dimethylaminoethoxy
  • DBU diazabicycloundecene
  • Texacat DP-914 Texaco Chemical
  • microspheres plastic hollow microspheres
  • hollow microspheres can either be added directly to the adhesive / sealant in the pre-expanded form as hollow microspheres, or the "hollow microspheres” are added to the adhesive / sealant as finely divided powder in the unfoamed form.
  • These unfoamed "hollow micro spheres” only expand when the adhesive and sealant are heated result in a very even and fine-pored foaming.
  • the hollow microspheres contain a liquid blowing agent based on aliphatic hydrocarbons or fluorocarbons as the core and a shell made of a copolymer of acrylonitrile with vinylidene chloride and / or methyl methacrylate and / or methacrylonitrile.
  • a liquid blowing agent based on aliphatic hydrocarbons or fluorocarbons as the core and a shell made of a copolymer of acrylonitrile with vinylidene chloride and / or methyl methacrylate and / or methacrylonitrile.
  • additives for regulating the flow behavior can also be added, examples of which are its urea derivatives, fibrillated or pulp short fibers, pyrogenic silicas and the like.
  • the adhesives / sealants to be used according to the invention preferably do not contain any plasticizers, it may occasionally be necessary to use plasticizers known per se.
  • plasticizers known per se.
  • Dialkyl phthalates, dialkyl adipates, dialkyl sebacates, alkyl aryl phthalates, alkyl benzoates, dibenzoates of polyols, such as ethylene glycol, propylene glycol or the lower polyoxypropylene or polyoxyethylene compounds, can be used for this purpose.
  • Other suitable plasticizers can be alkyl phosphates, aryl phosphates or alkylaryl phosphates and alkysulfonic acid esters of phenol or also paraffinic or naphthenic oils or dearomatized hydrocarbons as thinners.
  • plasticizers are selected so that they do not attack the surface deactivation layer of the deactivated fine-particle polyisocyanates during the storage of the adhesive / sealant because they would cause premature curing of the adhesive / sealant strand.
  • the adhesive joint of the components to be connected is designed in such a way that at least one partial area is transparent to the electromagnetic radiation.
  • the joining area is therefore preferably designed such that the electromagnetic radiation reaches the adhesive joint through the glass part or transparent plastic part of the structure combination can.
  • Figure 1 shows a portion of a lamp housing
  • Figure 2 shows the groove-shaped part of the joining area
  • Figure 3 shows the spring-shaped part of the joining area.
  • FIG. 1 shows parts of a lamp housing, part (1) representing a partial area of a cover plate or lens, or diffuser of the lamp housing made of glass or transparent plastic, which has a U-shaped groove area (3) in its edge area.
  • the lower part of the lamp housing (2) has a tongue-like projection (5) which engages in the U-shaped part of the groove area after the joining.
  • the entire volume enclosed by tongue and groove is filled with the thermosetting adhesive (6).
  • the horizontal leg (4) of the groove area consists of the glass or transparent plastic of the lamp housing part (1), and for the electromagnetic radiation of the near IR is permeable, so that the near IR radiation penetrate deep into the adhesive volume and thus allow very fast curing times.
  • FIG. 3 shows a detailed view of the spring area 5, this spring area preferably has projections (7) which are arranged perpendicular to the spring (5) and form the lower end of the adhesive joint area.
  • Example 2 Hardening of an adhesive joint on a headlamp by NIR ® radiation
  • the adhesive from Example 1 was filled as shown in drawing 1.
  • the housing was then pretreated using a suitable method such as plasma, primer or flame treatment, using the spring in accordance with the geometric specification.
  • This composite was subjected to NIR ® - irradiated radiation with a commercial emitter of power classes "Low Burn” or “Normal Burn” (from Adphos.). It was important according to the invention that the near IR radiation was introduced from the transparent side, since this was the only way to avoid overheating of the non-transparent substrate. After approx. 10 - 100 seconds, depending on the radiation intensity, the adhesive could be fully cured so that it met the requirements for headlight adhesive.

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  • Mechanical Engineering (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Electromagnetism (AREA)
  • Physics & Mathematics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Toxicology (AREA)
  • Organic Chemistry (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • General Chemical & Material Sciences (AREA)
  • Adhesives Or Adhesive Processes (AREA)

Abstract

La présente invention concerne un procédé pour relier des pièces moulées (1, 2) au moyen d'adhésifs thermodurcissables (6) grâce à l'exposition de la zone de jonction à un rayonnement électromagnétique. La zone de jonction est conçue de sorte que le substrat d'au moins l'une des pièces à relier est transparent au rayonnement électromagnétique au niveau de la zone de jonction. Le procédé de jonction convient notamment à la réalisation de dispositifs d'éclairage de véhicules ou de projecteurs de véhicules dont les verres protecteurs, verres d'éclairage ou verres de diffusion en verre ou en plastique transparent, sont conçus au niveau de la zone de jonction de sorte qu'un rayonnement infrarouge suffisamment énergétique peut être émis à l'intérieur du volume d'adhésif de la zone de jonction. Comme adhésif peut être utilisé en particulier un adhésif thermodurcissable à base d'une dispersion non aqueuse qui contient au moins un polyisocyanate désactivé uniquement en surface et au moins un polymère réactif à l'isocyanate.
PCT/EP2003/002019 2002-03-08 2003-02-27 Procede pour relier des substrats plastiques transparents Ceased WO2003076167A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
AU2003210375A AU2003210375A1 (en) 2002-03-08 2003-02-27 Method for joining transparent plastic substrates
EP03743824A EP1483102A1 (fr) 2002-03-08 2003-02-27 Procede pour relier des substrats plastiques transparents
US10/931,912 US20050087290A1 (en) 2002-03-08 2004-09-01 Method for joining transparent plastic substrates

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10210082.9 2002-03-08
DE10210082A DE10210082A1 (de) 2002-03-08 2002-03-08 Verfahren zum Verbinden von transparenten Kunststoffsubstraten

Related Child Applications (1)

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Cited By (1)

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Publication number Priority date Publication date Assignee Title
EP1715017A1 (fr) 2005-04-18 2006-10-25 Henkel Kommanditgesellschaft auf Aktien Adhésifs polyuréthannes durcissables par micro-ondes à basse température

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DE102008025610B4 (de) * 2008-05-28 2021-07-22 HELLA GmbH & Co. KGaA Verfahren zum Befestigen einer lichtdurchlässigen Abschlusssscheibe an einem Tragelement einer Beleuchtungseinrichtung

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JPS5743821A (en) * 1980-06-19 1982-03-12 Ichikoh Ind Ltd Mutual adhesion structure of synthetic resin product
DE3810096A1 (de) * 1988-03-29 1989-10-05 Kendall & Co Verfahren zum verbinden zweier substrate und dafuer geeignete zusammensetzung
EP0512678A1 (fr) * 1991-05-06 1992-11-11 Ford Motor Company Limited Chauffage diélectrique par champs marginal
US6251202B1 (en) * 1999-05-05 2001-06-26 Patent Holding Company Method and system for bonding plastic parts together
WO2001096439A1 (fr) * 2000-06-15 2001-12-20 Bayer Ag Substances auto-adhesives presentant une resistance accrue au cisaillement a temperature elevee

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EP0492789B1 (fr) * 1990-12-24 1998-01-14 Ford Motor Company Limited Méthode et dispositif pour souder-coller une pièce isolante avec une pièce conductrice
DE19504425A1 (de) * 1995-02-10 1996-08-14 Hella Kg Hueck & Co Heißschmelzklebstoffe für Fahrzeugleuchten und Fahrzeugscheinwerfer
DE19814390C1 (de) * 1998-03-31 2000-02-17 Industrieservis Ges Fuer Innov Verfahren und Vorrichtung zum Beschichten einer Oberfläche mit einer Kunststoffolie
DE19941996A1 (de) * 1999-09-02 2001-03-08 Sca Schucker Gmbh Verfahren und Anordnung zum Aufheizen eines Bauteils entlang einer vorgegebenen Bahn
DE10024706C2 (de) * 2000-05-09 2003-01-30 Advanced Photonics Tech Ag Verfahren zur Herstellung einer geklebten Verbundstruktur
DE10122437A1 (de) * 2001-05-09 2002-11-28 Henkel Kgaa Schmelzklebstoff in Form eines Granulates

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JPS5743821A (en) * 1980-06-19 1982-03-12 Ichikoh Ind Ltd Mutual adhesion structure of synthetic resin product
DE3810096A1 (de) * 1988-03-29 1989-10-05 Kendall & Co Verfahren zum verbinden zweier substrate und dafuer geeignete zusammensetzung
EP0512678A1 (fr) * 1991-05-06 1992-11-11 Ford Motor Company Limited Chauffage diélectrique par champs marginal
US6251202B1 (en) * 1999-05-05 2001-06-26 Patent Holding Company Method and system for bonding plastic parts together
WO2001096439A1 (fr) * 2000-06-15 2001-12-20 Bayer Ag Substances auto-adhesives presentant une resistance accrue au cisaillement a temperature elevee

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1715017A1 (fr) 2005-04-18 2006-10-25 Henkel Kommanditgesellschaft auf Aktien Adhésifs polyuréthannes durcissables par micro-ondes à basse température

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DE10210082A1 (de) 2003-09-25
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