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WO1999028375A1 - Procede de production d'une structure de type sandwich - Google Patents

Procede de production d'une structure de type sandwich Download PDF

Info

Publication number
WO1999028375A1
WO1999028375A1 PCT/EP1998/005674 EP9805674W WO9928375A1 WO 1999028375 A1 WO1999028375 A1 WO 1999028375A1 EP 9805674 W EP9805674 W EP 9805674W WO 9928375 A1 WO9928375 A1 WO 9928375A1
Authority
WO
WIPO (PCT)
Prior art keywords
sandwich
quality
surface coating
prefabricated
plate
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/EP1998/005674
Other languages
German (de)
English (en)
Inventor
Erich Grundmann
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.)
Sms Sondermaschinen Recyclingtechnik GmbH
Original Assignee
Sms Sondermaschinen Recyclingtechnik GmbH
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
Priority claimed from DE1997152399 external-priority patent/DE19752399A1/de
Application filed by Sms Sondermaschinen Recyclingtechnik GmbH filed Critical Sms Sondermaschinen Recyclingtechnik GmbH
Priority to AU35874/99A priority Critical patent/AU3587499A/en
Priority to DE19881826T priority patent/DE19881826D2/de
Publication of WO1999028375A1 publication Critical patent/WO1999028375A1/fr
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
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J11/00—Recovery or working-up of waste materials
    • C08J11/04—Recovery or working-up of waste materials of polymers
    • C08J11/06—Recovery or working-up of waste materials of polymers without chemical reactions
    • 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
    • B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
    • B29C41/003—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor characterised by the choice of material
    • 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
    • B29C2791/00—Shaping characteristics in general
    • B29C2791/001—Shaping in several steps
    • 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
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/26—Scrap or recycled material
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/62—Plastics recycling; Rubber recycling

Definitions

  • the invention relates to a method for producing a sandwich-like structure with at least two layers, at least one of which consists of at least partially new, high-quality material and at least one of low-quality material, in particular recycling material, at least one layer in the pasty to liquid state under pressure with another Layer is connected.
  • the layer is made of new, high-quality material and the layer Recycled material bonded together using a special adhesive process. It is a floor covering made of two rubber layers. When gluing together, the rubber layers are first sealed with a pore adhesive, whereupon the two sealed rubber layers are glued together. As a result, a large number of procedural steps are necessary. It is cheaper to produce a floor covering in which the number of process steps is reduced.
  • a sandwich-like structure consisting of two layers is already known, in which both layers, which consist of rubber, are connected to one another in a pasty to liquid state under pressure. In this structure, however, the two layers migrate or flow into one another, so that the structure must be relatively thick in order to form a reasonably defined structure. Therefore, this known structure is not suitable for floor coverings because it is too thick.
  • the object of the present invention is to produce a method or a structure with the advantages of reducing the number of steps, which is thin enough and yet resistant to wear and tread and yet elastic, for example to form a material-saving floor covering.
  • This object is achieved by a method or a structure in which at least one layer of new, high-quality material as a thin plate-like Coating is made of high-quality, wear-resistant plastic and is distributed in thin or slightly liquid form and a predetermined amount on the bottom of a plate mold and a prefabricated mat or plate made of low-quality material, in particular recycling material, is pressed onto it.
  • the mat or plate made of recycled material is already in solid form, the layers do not migrate into one another, but only interlock with their surface irregularities and it is possible to produce a sandwich-like structure that can serve as a floor covering.
  • the mat or plate and the thin surface coating can also be a fabric with a particularly net-like structure, e.g. a glass fiber rowing fabric can be introduced, through which the thin or slightly liquid plastic can connect to the prefabricated mat or plate.
  • the bottom of the plate shape is preferably profiled, so that the outwardly facing surface of the thin plate-like coating made of high-quality, wear-resistant plastic is also profiled. Such profiling is used for slip resistance and tread resistance when using the sandwich-like structure as a floor covering.
  • the outwardly facing surface of the thin surface coating is also preferably exposed high-quality wear-resistant plastic as profiling in the form of nubs, which has proven to be particularly cheap for the stated purpose as a non-slip and non-slip floor covering.
  • the high-quality, wear-resistant plastic for the plate-like coating preferably consists of polyurethane.
  • This material has particularly favorable and wear-resistant properties. It has low impact sound, can be made in all colors and hardness and is UV-resistant.
  • the prefabricated mat or plate preferably consists of low-quality material made from recycled rubber.
  • the recycling rubber is also preferably obtained from scrapped car tires.
  • the prefabricated mat or plate preferably consists of low-quality material made from recycled cable insulation scrap. Recycled cable insulation scrap can be obtained particularly cheaply, with recycling receipts even being paid for just to ensure disposal.
  • the prefabricated mat or plate can also consist at least partially of lower quality material such as wood or pressboard.
  • the pressboard material can also be made from recycled wood.
  • the object is also achieved in that a prefabricated thin surface coating for forming a sandwich structure from at least partially new, high-quality material in solid form is placed in the bottom of a plate mold and then a layer of liquid to pasty low-quality material, in particular recycling material, evenly thereon is applied and the two materials are joined together under pressure, the two materials having binders which can be bonded to one another.
  • one of the two layers is also in a fixed form, so that the two materials cannot migrate into one another.
  • the binder achieves a particularly intimate binding effect between the two layers.
  • the prefabricated thin surface coating preferably consists of new colored, UV-resistant, wear-resistant rubber.
  • the new rubber can be made in any color.
  • the prefabricated thin surface coating likewise preferably consists of a mixture of, for example, colored new UV-resistant wear-resistant rubber and recycled rubber. Because the high-quality surface coating contains a mixture of new rubber and recycled rubber, the price of the sandwich-like structure is further reduced and the environmental advantages are improved. Furthermore, the recycled rubber portion is preferably obtained from scrapped car tires.
  • the prefabricated thin surface coating is preferably split off from a block. By splitting off a block, the prefabricated thin surface coating can be made as thin as desired.
  • the prefabricated thin surface coating is preferably produced 2 mm thick.
  • the prefabricated thin surface coating is also preferably produced 0.5 mm thick.
  • the layer is preferably made from liquid to pasty, low-quality material made from recycled rubber.
  • the recycling rubber is preferably obtained from scrapped car tires.
  • the prefabricated thin surface coating and the layer of liquid to pasty, low-quality material each contain 6% binder.
  • the layer of high quality material is a thin plate-like Polyurethane coating.
  • This layer is distributed in thin or slightly liquid form and a predetermined amount on the bottom of a plate mold.
  • the plate shape contains nub-like structures in the negative, so that the thin plate-like coating also has nubs after hardening. These knobs are particularly favorable for the tread resistance of the floor coverings.
  • the polyurethane is particularly high quality and wear-resistant and is particularly suitable for the surface layer of floor coverings.
  • the prefabricated mat made of low-quality material consists of recycled rubber, which is obtained from scrapped car tires. The scrapped car tires are processed into granules or rubber powder, which is heated so that a uniform mat is created, which is cooled again after heating. This mat made of low-quality material is pressed onto the thin or slightly liquid layer of polyurethane.
  • the polyurethane combines excellently with the recycling rubber, so that the sandwich-like structure is finished after the polyurethane has hardened.
  • a thin surface coating is produced from a mixture of new, high-quality, UV-resistant, wear-resistant, colored rubber.
  • This rubber compound is produced in block form, from which the surface coating is split off by a splitting knife.
  • the prefabricated thin surface coating is placed in the bottom of a platform and a layer of liquid is placed on it to pasty recycled rubber applied.
  • both materials are bonded together under pressure, both materials having binders that can be bonded to one another.
  • the surface coating is preferably 0.5 mm to 2 mm thick, which represents a small proportion of the sandwich structure, so that a clear price and environmental advantage is ensured.
  • the layer of liquid to pasty low-quality material which is made of recycled rubber, is obtained from granulate or flour from scrapped car tires. This granulate or flour is heated until the material is liquid to pasty. It is applied evenly to the surface coating, whereby both materials are bonded together under pressure.
  • the binder which is present in both materials, ensures an excellent bond between the two materials.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Health & Medical Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Engineering & Computer Science (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
  • Laminated Bodies (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)

Abstract

L'invention concerne un procédé de production d'une structure sandwich comprenant, de préférence, deux couches. Dans un exemple cité, un mince revêtement de surface en plastique résistant à l'usure et de grande valeur est réparti sur une faible épaisseur et sous forme légèrement liquide sur le plancher d'une plate-forme, et ce dans une quantité prédéterminée. Ensuite, on applique dessus un tapis ou une plaque en matériau de peu de valeur, notamment un matériau de recyclage. La structure est achevée lorsque le revêtement de surface est durci. Dans un autre exemple cité, un mince revêtement de surface préfabriqué réalisé dans un nouveau matériau de grande valeur sous forme solide est inséré dans le sol d'une plate-forme puis une couche en matériau de peu de valeur liquide à pâteuse, notamment un matériau de recyclage, est appliquée uniformément sur le revêtement de surface. Les deux matériaux, reliés sous pression, présentent des liants pouvant se lier de telle façon qu'une excellente adhésion des deux couches soit obtenue.
PCT/EP1998/005674 1997-11-26 1998-09-07 Procede de production d'une structure de type sandwich Ceased WO1999028375A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU35874/99A AU3587499A (en) 1997-11-26 1998-09-07 Method for producing a sandwich type structure
DE19881826T DE19881826D2 (de) 1997-11-26 1998-09-07 Verfahren zur Herstellung einer sandwichartigen Struktur

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE19752399.4 1997-11-26
DE1997152399 DE19752399A1 (de) 1997-11-26 1997-11-26 Verfahren zur Herstellung einer sandwichartigen Struktur
DE29800823.8 1998-01-19
DE29800823U DE29800823U1 (de) 1997-11-26 1998-01-19 Sandwichartige Struktur

Publications (1)

Publication Number Publication Date
WO1999028375A1 true WO1999028375A1 (fr) 1999-06-10

Family

ID=26041926

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1998/005674 Ceased WO1999028375A1 (fr) 1997-11-26 1998-09-07 Procede de production d'une structure de type sandwich

Country Status (3)

Country Link
AU (1) AU3587499A (fr)
DE (1) DE19881826D2 (fr)
WO (1) WO1999028375A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003057771A1 (fr) * 2001-06-21 2003-07-17 Yujun Zhong Matiere en caoutchouc de revetement decorative et son procede de production

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4010714A1 (de) * 1990-04-03 1991-10-10 Bernd Wahl Kunststoffverbundplatte
WO1993024308A1 (fr) * 1992-05-26 1993-12-09 Tesch Guenter Matiere plastique sous forme de film
WO1996022413A1 (fr) * 1995-01-19 1996-07-25 Ekotex S.R.O. Revetement de sol auto-adhesif et son procede de fabrication
WO1997038838A1 (fr) * 1996-04-14 1997-10-23 Suzuka Fuji Xerox Co., Ltd. Article moule enrobe, procede de recyclage de celui-ci et appareil prevu a cet effet

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4010714A1 (de) * 1990-04-03 1991-10-10 Bernd Wahl Kunststoffverbundplatte
WO1993024308A1 (fr) * 1992-05-26 1993-12-09 Tesch Guenter Matiere plastique sous forme de film
WO1996022413A1 (fr) * 1995-01-19 1996-07-25 Ekotex S.R.O. Revetement de sol auto-adhesif et son procede de fabrication
WO1997038838A1 (fr) * 1996-04-14 1997-10-23 Suzuka Fuji Xerox Co., Ltd. Article moule enrobe, procede de recyclage de celui-ci et appareil prevu a cet effet

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Section Ch Week 9751, Derwent World Patents Index; Class A18, AN 97-558555, XP002089975 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003057771A1 (fr) * 2001-06-21 2003-07-17 Yujun Zhong Matiere en caoutchouc de revetement decorative et son procede de production

Also Published As

Publication number Publication date
DE19881826D2 (de) 2001-02-15
AU3587499A (en) 1999-06-16

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