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WO1998037129A1 - Films en matiere plastique, son utilisation dans des procedes de production d'emballages, emballages ainsi produits et utilisation de compositions de revetement aqueuses pour revetir ces films afin de produire ces emballages - Google Patents

Films en matiere plastique, son utilisation dans des procedes de production d'emballages, emballages ainsi produits et utilisation de compositions de revetement aqueuses pour revetir ces films afin de produire ces emballages Download PDF

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Publication number
WO1998037129A1
WO1998037129A1 PCT/EP1998/000974 EP9800974W WO9837129A1 WO 1998037129 A1 WO1998037129 A1 WO 1998037129A1 EP 9800974 W EP9800974 W EP 9800974W WO 9837129 A1 WO9837129 A1 WO 9837129A1
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WO
WIPO (PCT)
Prior art keywords
weight
component
free
mixture
packaging containers
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/EP1998/000974
Other languages
English (en)
Inventor
Harald Borgholte
Christopher Hilger
Horst HINTZE-BRÜNING
Peter Eric Van Rijn
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.)
PPG Industries Ohio Inc
PPG Industries Inc
Original Assignee
PPG Industries Ohio Inc
PPG Industries Inc
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 PPG Industries Ohio Inc, PPG Industries Inc filed Critical PPG Industries Ohio Inc
Priority to AU67225/98A priority Critical patent/AU6722598A/en
Publication of WO1998037129A1 publication Critical patent/WO1998037129A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F255/00—Macromolecular compounds obtained by polymerising monomers on to polymers of hydrocarbons as defined in group C08F10/00
    • C08F255/02—Macromolecular compounds obtained by polymerising monomers on to polymers of hydrocarbons as defined in group C08F10/00 on to polymers of olefins having two or three carbon atoms
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
    • C08J7/04—Coating
    • C08J7/0427—Coating with only one layer of a composition containing a polymer binder
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
    • C08J7/04—Coating
    • C08J7/043—Improving the adhesiveness of the coatings per se, e.g. forming primers
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D151/00—Coating compositions based on graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Coating compositions based on derivatives of such polymers
    • C09D151/06—Coating compositions based on graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Coating compositions based on derivatives of such polymers grafted on to homopolymers or copolymers of aliphatic hydrocarbons containing only one carbon-to-carbon double bond
    • 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
    • C09J151/00—Adhesives based on graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Adhesives based on derivatives of such polymers
    • C09J151/06—Adhesives based on graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Adhesives based on derivatives of such polymers grafted on to homopolymers or copolymers of aliphatic hydrocarbons containing only one carbon-to-carbon double bond
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2451/00—Characterised by the use of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives of such polymers

Definitions

  • the present invention relates to a plastics film for producing packaging containers, one outer side of the film being coated with a sealable coating and the opposite outer side of the film being coated with an aqueous acrylate-based composition for outside coating ("outside coating composition”) .
  • the present invention moreover relates to a process for producing packaging containers using these plastics films, to the packaging containers thus produced, and to the use of aqueous coating compositions to coat plastics films for producing packaging containers.
  • Plastics films which are intended to be used, for example, for packaging foods, e.g. chocolate, ice cream, nuts, potato chips and the like, are provided with adhesive coatings in order to allow an effective seal.
  • plastics films of the type mentioned at the outset are also applied to packaging containers made from glass and/or plastic, for example drinks bottles, in order to mark these and/or to provide them with a decorative surface.
  • the plastics films are provided with adhesive coatings.
  • the adhesive coatings in particular cases are either hot-sealable coatings, which can be sealed at elevated temperatures, or cold-sealable coatings, which are sealed at temperatures of from about 0 to 40°C.
  • Cold-sealable coatings and their properties are described, for example, in L. Placzek, Coating, 18 (4), pages 94 - 95, 1985.
  • Cold-sealable coatings are preferably applied from an aqueous phase.
  • Pressure-sensitive adhesives which are used in the cold-sealing process, are predominantly used in the packaging of foods, e.g. for packaging of chocolates and ice cream.
  • Seal able coating agents for the sealing of plastics films are known, for example, from US-A-4,898,787, US-A-4,888,395 and US-A-5,070,164.
  • the cold-sealable coatings are usually based on emulsion polymers, which have an average molecular weight of from about 20,000 to 150,000 and a glass transition temperature of from about -15 to about +15°C.
  • cold-sealable coatings have the disadvantage of poor antiblocking properties, i.e. when stored, plastics films coated with cold-sealable coatings, if stored over a prolonged period under normal storage conditions in the form of rolls, show a tendency to stick to the mutually superposed layers of film.
  • the outside coating compositions used for this purpose usually contain solvent or are aqueous and based on acrylate copolymers.
  • the antiblocking properties are usually obtained by adding from 1 to 10 percent by weight, based on the solids content of wax and of acrylate copolymer, of a wax (added generally as wax dispersion), as described, for example, in DE-A-2440 112.
  • the object on which the present invention is based is therefore to provide plastics films suitable for producing packaging containers and having good resistance to blocking.
  • the plastics films should moreover fulfill the requirements usually placed upon plastics films which are used to produce packaging containers.
  • the plastics films should therefore, for example, be printable on the side facing away from the sealable coating. They should, furthermore, be odorless, so as to be suitable also for food packaging. They should moreover have very good optical properties.
  • the plastics films should, if they are used directly to produce packaging containers, be sealable under the conditions usually used.
  • the aqueous outside coatings used to coat the plastics films should have very long shelf lives.
  • the outside coating contains, as binder, an aqueous acrylate dispersion, which is obtainable by free- radical polymerization of
  • component (al) from 1 to SOX by weight, based on the total weight of component (A), of acrylic acid, methacrylic acid or a mixture of acrylic acid and methacrylic acid and (a2) from 50 to 99# by weight, based on the total weight of component (A), of an ethylenically unsaturated monomer different from (al) or of a mixture of such ethylenically unsaturated monomers,
  • novel plastics films can be used to produce packaging containers, in particular for foods, and are distinguished by very good resistance to blocking.
  • the outer coatings used according to the invention are moreover distinguished by very good shelf life.
  • the present invention therefore provides, in addition, a process for producing packaging containers using these plastics films, the packaging containers thus produced, and also the use of aqueous coating compositions to coat plastics films for producing packaging containers.
  • the mixture (A) used for preparing the acrylate dispersion used according to the invention comprises (al) from 1 to 50% by weight, based on the total weight of component (A), of acrylic acid, methacrylic acid or a mixture of acrylic acid and methacrylic acid and
  • component (a2) from 50 to 99% by weight, based on the total weight of component (A), of an ethylenically unsaturated monomer different from (al) or of a mixture of such ethylenically unsaturated monomers.
  • composition of the mixture of (al) and (a2) is preferably selected in such a way that if the mixture of (al) and (a2) is polymerized alone the resultant polymer has a glass transition temperature of from 0 to 150°C, preferably from 10 to 80°C.
  • composition of the mixture of (al) and (a2) is preferably selected in such a way that if the mixture of (al) and (a2) is polymerized alone the resultant polymer contains
  • glass transition temperature of polymers prepared from ethylenically unsaturated monomers may be calculated from the equation
  • Tgn glass transition temperature of the homopolymer made from the nth monomer, and ethylenically unsaturated monomers which contain -C00H, -OH, -NR 3 , -CN, -C0NH 2 , -CO-, -NHC0NH-, -0C0NH-, -0P0 3 H 2 , -0SO 3 H or -R-O-R- (where R is an organic radical, preferably an alkyl or alkylene radical having from 1 to 6 carbon atoms) are commercially available, the person skilled in the art can readily select the composition of the mixture of components (al) and (a2) in such a way that if the mixture of (al) and (a2) is polymerized alone the resulting polymer has the parameters mentioned.
  • examples of compounds which may be used as component (a2) are: acrylates or methacryl ates, in particular aliphatic acrylates or methacryl ates having up to 20 carbon atoms in the alcohol radical, such as methyl, ethyl, propyl, butyl, hexyl, ethyl hexyl, octyl, decyl and dodecyl acrylate or methacrylate, corresponding esters of other ethylenically unsaturated acids having up to 6 carbon atoms in the molecule, such as ethacrylic acid and crotonic acid, acrylamidomethylpropanesulfonic acid, vinylaromatic hydrocarbons, such as styrene, ⁇ -alkylstyrene and vinyltoluene, monomers containing amide groups, such as acrylamide, methacrylamide, N-methylolacrylamide and N- ethylol
  • component (B) use is made of a halogen-free polyolefin or a halogen- free copolymer or a mixture of halogen-free polyolefins and/or halogen- free copolymers.
  • a homopolymer of propylene or a copolymer of propylene and at least one coonomer, such as ethylene, butylene or isoprene, or a mixture of such polyolefins and/or copolymers is preferably used as component (B) .
  • the polyolefins and copolymers used according to the invention as component (B) preferably have a weight-average molecular weight of from 1000 to 100,000, preferably from 3000 to 55,000 (determined by gel permeation chromatography using a polypropylene standard) and/or an iodine number of up to 0.3 mg I 2 /g, preferably from 0.005 to 0.05 mg I 2 /g, and they may have been subjected to a grafting reaction with maleic anhydride.
  • component (B) a halogen-free copolymer of
  • component (bl) from 1 to 99% by weight, preferably from 50 to 90% by weight, based on the total weight of component (B) , of propylene,
  • component (b2) from 0 to 99% by weight, preferably from 10 to 50% by weight, based on the total weight of component (B), of at least one olefin, other than isoprene, copolymerizable with (bl) and containing, per molecule, from 5 to 20 carbon atoms, preferably from 6 to 8 carbon atoms, and
  • component (b3) from 0 to 50% by weight, preferably from 0 to 25% by weight, based on the total weight of component (B), of ethylene and/or butylene
  • component (b2) use is made of at least one olefin, other than isoprene, which is copolymerizable with (bl) and contains, per molecule, from five to twenty carbon atoms, preferably from six to eight carbon atoms.
  • the olefin used as component (b2) may be unbranched, branched, acyclic or cyclic. Examples of acyclic olefins are pentene, hexene, heptene, octene, nonene and decene.
  • cyclic olefins are cyclopentene, cyclohexene, cyc oheptene, cyclooctene, cyclononene, cyclodecene and norbornene.
  • Use is preferably made, as component (b2), of branched or unbranched acyclic olefins which have from five to twenty carbon atoms, preferably from six to eight carbon atoms, per molecule, and only one olefinically unsaturated double bond, preferably in the exposition.
  • olefins are 1-pentene, 1-hexene, 1-heptene, 1-octene, 1-nonene and 1-decene. Particular preference is given to the use of 1-hexene, 1-heptene and 1-octene as component (b2).
  • the water-dilutable binders used according to the invention are prepared by free-radical polymerization of from 20 to 90% by weight, preferably from 54 to 85% by weight, of mixture (A) in the presence of from 9.9 to 79.9% by weight, preferably from 14 to 45% by weight, of component (B) and from 0.1 to 10% by weight, preferably from 1 to 7% by weight, of component (C), and dispersing in water the polymerization product obtained, after neutralization of at least 20% of the carboxyl groups present in the polymerization product.
  • the percentages for components (A), (B) and (C) are based on the total weight of (A), (B) and (C).
  • the polymerization of mixture (A) in the presence of components (B) and (C) may be carried out in bulk, in aqueous emulsion or in an organic solvent, or in a mixture of organic solvents.
  • the polymerization is preferably carried out in an organic solvent or in a mixture of organic solvents, in particular in apolar solvents having a boiling point in the range of from 120 to 200°C, preferably from 135 to 190°C, at polymerization temperatures of from 120 to 200°C, preferably from 130 to 160°C.
  • Compounds used as component (C) may in principle be any known free- radical generators. Preference is given to the use of free-radical generators based on per-compounds. In addition, preference is given to the use of free-radical generators which, at the polymerization temperature, have a half-life time of from 15 to 180 minutes.
  • free-radical generators which may be used are: dial yl peroxides, such as dicumyl peroxide and di-tert-butyl peroxide, peroxyesters, such as tert-butyl peroxybenzoate, tert-butyl peroxyoctanoate, tert-butyl peroxyacetate and tert-butyl peroxyisobutyrate, and diacyl peroxides, such as benzoyl peroxide and acetyl peroxide, and also azo compounds, such as azobis(isobutyronitrile).
  • component (C) are di-tert-butyl peroxide, tert-butyl perethylhexanoate and tert-butyl peracetate.
  • Polymerization regulators in particular those based on ercaptans, may moreover be used in these systems.
  • the polymerization regulators are usually used in an amount of from 0.1 to 5% by weight, based on the total weight of the monomers used.
  • organic amines in particular tertiary amines, such as dimethylethanolamine.
  • aqueous coating compositions for coating plastics films.
  • aqueous coating compositions usually contain from 10 to 40% by weight, preferably from 15 to 25% by weight, of the acrylate copolymer described above (used as aqueous dispersion), based on solid resin and on the total weight of the aqueous coating composition.
  • aqueous coating compositions moreover usually also contain from 40 to 90% by weight of water and from 0 to 20% by weight, based in each case on the total weight of the aqueous coating composition, of usual auxiliaries and additives.
  • auxiliaries and additives are hydrophobicizers, flow control agents, stabilizers, thickeners, defoamers and additives which have a favorable effect on slip performance.
  • the aqueous coating compositions may, for example, contain insoluble, finely dispersed inorganic substances, such as talc or silica, e.g. the commercial product Syloid 63 FP from Grace.
  • aqueous coating compositions are used according to the invention for coating plastics films.
  • one outer side of the plastics film is coated with a seal able coating and the opposite outer side of the plastics film is coated with the aqueous coating composition described above.
  • the resulting coating prevents the mutually superposed layers of film from adhering to one another during use and if the plastics films are stored in the form of rolls for a relatively long period under normal storage conditions.
  • the aqueous outside coating is also intended to allow the application of a printing ink to this outside coating layer.
  • the surface of the films is generally pretreated in order to ensure that the coating adheres firmly to the film. This is intended to prevent the coating from becoming peeled off or pulled off from the film.
  • This treatment is carried out by known methods, e.g. by chlorination of the plastics film, treatment with oxidants, such as chromic acid or hot air, or by steam treatment or flame treatment.
  • oxidants such as chromic acid or hot air
  • steam treatment or flame treatment is a particularly preferred pretreatment used.
  • a particularly preferred pretreatment used is high-voltage corona discharge.
  • the plastics films are generally precoated after the pretreatment, in order to secure adhesion of the coating to the substrate film.
  • Suitable precoating agents or primers are known from the literature and encompass, for example, alkyl titanates, and also primers based on epoxides, on mel amine-formaldehyde resins and on polyethyleneimines. The latter are particularly suitable for precoating plastics films.
  • These polyethyleneimines may be applied to the, if desired pretreated, plastics films either from organic or else from aqueous solution.
  • the concentration of the polyethyleneimine in the aqueous or in the organic solution here is, for example, 0.5% by weight.
  • Suitable polyethyleneimine primers are described, for example, in DE-A-2440 112 and US-A-3,753,769.
  • the uncoated plastics films generally have a thickness of from 0.015 to 0.060 mm.
  • the aqueous coating composition is applied to the plastics film in a usual manner, for example by gravure coating, roller coating, dipping, spraying, or with the aid of gravure or flexo printing or reverse-roll coating. The excess of aqueous solution may be removed by squeegee rollers or doctors.
  • the coating compositions are usually applied in an amount which, on drying, gives a smooth, uniformly distributed layer with a weight of from 0.5 to 5 g/m 2 , preferably with a weight of from 1 to 2 g/m 2 .
  • the coating formed on the plastics film by the aqueous coating composition like the seal able coating layer, is dried separately or together with the seal able coating layer with hot air, radiant heat or by any other usual means.
  • seal able coatings used for producing the plastics films are likewise known and are described, for example, in DE-A-4341815.
  • seal able coatings are preferably sealed at a temperature of from 0 to 80°C, particularly preferably at least 30°C and very particularly preferably from 40 to 70°C.
  • the printing inks used for subsequent printing of the plastics films are likewise known and therefore do not require more detailed description.
  • the printed plastics films are usually then provided with a release coat. These release coats used are likewise known and therefore do not require more detailed description.
  • Deionized water is then added, with stirring, at 80°C. Finally, the organic solvents are distilled off from the resultant aqueous dispersion until a residual solvent content of less than 5% by weight has been achieved.
  • the resultant aqueous dispersion has the content of non- volatile fractions (1 h/130°C), the acid number, and the pH value which are given in each case.
  • Wax 1 IC amount in parts of a commercially available polypropylene wax added in the initial charge, the wax having a high polyethylene fraction and a weight-average molecular weight of 55,000, a melting point of 130°C and a viscosity at 180°C of 9,500 mPa.s; bracket value: amount of wax based on total amount of monomers
  • Wax 2 IC amount in parts of a commercially available isotactic polypropylene wax added in the initial charge, the wax having a weight- average molecular weight of about 20,000 (GPC against polypropylene standard), a melting point of 155°C and a viscosity at 180°C of 0.2 Pa.s; bracket value: amount of wax based on total amount of monomers
  • DTBP amount in parts of di -tert-butyl peroxide (amount in %, based on total amount of monomers)
  • TBPEH amount in parts of tert-butyl perethyl hexanoate (amount in %, based on total amount of monomers)
  • T IC temperature to which the initial charge is heated
  • Duration mon duration in hours of the monomer feed
  • Duration init duration in hours of the initiator feed
  • Duration cont duration in hours of the continued polymerization
  • Duration DMEA duration of stirring after dimethylethanolamine addition
  • MMA amount in parts of methyl methacrylate added
  • MAA amount in parts of methacrylic acid added
  • EHA amount in parts of ethylhexyl acrylate added
  • CHMA amount in parts of cyclohexyl methacrylate added
  • Shell sol® A amount in parts of Shellsol® A added
  • shelf life at 40°C shelf life of the dispersion when stored at 40°C
  • aqueous coating compositions 1 to 3 were prepared by adjusting with water to a solids content of 20%.
  • Each of coating compositions 1 to 3 is applied with a wire-wound draw bar to oriented polypropylene from Mobil Plastics, Belgium, provided with a polyethylenei ine-based primer.
  • the coating weight is 1.5 ⁇ 0.5 g/m 2 .
  • the film is dried for 1 minute at an air temperature of 120°C in a Heraeus laboratory heating cabinet.
  • the resistance to blocking of these coated films with respect to the packaging film coated with a seal able coating is determined by pressing together, under the conditions given in Table 2, the film coated with coating 1 to 3 and an OPP film made from oriented polypropylene 33MW247 from Mobil Plastics, Belgium, which has been coated with a seal able coating according to DE-A-4341185, based on an acrylate copolymer containing acrylonitrile groups. Test strips of width 25 mm are then cut from the test surface, and resistance to blocking is then determined by peeling with the aid of an apparatus for measuring tension/ elongation. The results of this measurement are given in Table 2. Table 2: Results of the blocking resistance test (in g/25 mm)
  • the films coated with aqueous coating compositions 1 to 3 are moreover printable with the printing inks usually used.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Paints Or Removers (AREA)
  • Laminated Bodies (AREA)

Abstract

La présente invention concerne un film en matière plastique, servant à la production d'emballages et dont un côté extérieur est revêtu d'un revêtement de scellage, le côté extérieur opposé étant revêtu d'une composition de revêtement extérieure contenant une dispersion aqueuse d'acrylate, obtenue selon un procédé consistant à faire polymériser (A) 20 à 90 % en poids d'un mélange comprenant (a1) 1 à 50 % en poids, calculés sur le poids total du constituant (A), d'acide (méth)acrylique et (a2) 50 à 99 % en poids, calculés sur le poids total du constituant (A), d'au moins un autre monomère, cette polymérisation s'effectuant en présence de (B) 9,9 à 79,9 % en poids d'au moins une polyoléfine dépourvue d'halogène et (C) 0,1 à 10 % en poids d'au moins un amorceur radicalaire, puis à disperser dans l'eau le produit de polymérisation ainsi obtenu, les pourcentages pondéraux des constituants (A), (B) et (C) étant calculés sur le poids total de (A), (B) et (C).
PCT/EP1998/000974 1997-02-22 1998-02-20 Films en matiere plastique, son utilisation dans des procedes de production d'emballages, emballages ainsi produits et utilisation de compositions de revetement aqueuses pour revetir ces films afin de produire ces emballages Ceased WO1998037129A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU67225/98A AU6722598A (en) 1997-02-22 1998-02-20 Plastics film, its use in processes for producing packaging containers, the pac kaging containers thus produced, and the use of aqueous coating compositions to coat plastics films for producing packaging containers

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19707186.4 1997-02-22
DE19707186A DE19707186A1 (de) 1997-02-22 1997-02-22 Kunststoffolie, ihre Verwendung in Verfahren zur Herstellung von Verpackungsbehältern, die so hergestellten Verpackungsbehälter sowie die Verwendung von wäßrigen Lacken zur Beschichtung von Kunststoffolien für die Herstellung von Verpackungsbehältern

Publications (1)

Publication Number Publication Date
WO1998037129A1 true WO1998037129A1 (fr) 1998-08-27

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PCT/EP1998/000974 Ceased WO1998037129A1 (fr) 1997-02-22 1998-02-20 Films en matiere plastique, son utilisation dans des procedes de production d'emballages, emballages ainsi produits et utilisation de compositions de revetement aqueuses pour revetir ces films afin de produire ces emballages

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AU (1) AU6722598A (fr)
DE (1) DE19707186A1 (fr)
WO (1) WO1998037129A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012087070A1 (fr) * 2010-12-24 2012-06-28 Akzo Nobel Coatings International B.V. Composition de revêtement à base aqueuse exempte d'halogène

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4898787A (en) * 1987-07-02 1990-02-06 Mobil Oil Corporation Emulsion polymerized cohesive polymer latex useful as cold seal coating and improved sealable articles treated with the same
DE4412655A1 (de) * 1994-04-13 1995-10-19 Basf Lacke & Farben Wasserverdünnbare Bindemittel, wäßrige Lacke, die diese Bindemittel enthalten, und Verfahren zur Grundierung oder einschichtigen Lackierung von Kunststoffen

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4870134A (en) * 1987-05-27 1989-09-26 Shell Oil Company Film, sheet and laminate capable of forming easy-open packagings
DE4231395A1 (de) * 1992-09-19 1994-03-24 Roehm Gmbh Heißsiegelfähige Kunststoff-Folien

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4898787A (en) * 1987-07-02 1990-02-06 Mobil Oil Corporation Emulsion polymerized cohesive polymer latex useful as cold seal coating and improved sealable articles treated with the same
DE4412655A1 (de) * 1994-04-13 1995-10-19 Basf Lacke & Farben Wasserverdünnbare Bindemittel, wäßrige Lacke, die diese Bindemittel enthalten, und Verfahren zur Grundierung oder einschichtigen Lackierung von Kunststoffen

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012087070A1 (fr) * 2010-12-24 2012-06-28 Akzo Nobel Coatings International B.V. Composition de revêtement à base aqueuse exempte d'halogène
US9523017B2 (en) 2010-12-24 2016-12-20 Akzo Nobel Coatings International B.V. Halogen-free waterborne coating composition

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DE19707186A1 (de) 1998-08-27
AU6722598A (en) 1998-09-09

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