EP2632669A1 - Adhésif polyuréthane aqueux - Google Patents

Adhésif polyuréthane aqueux

Info

Publication number
EP2632669A1
EP2632669A1 EP11808816.0A EP11808816A EP2632669A1 EP 2632669 A1 EP2632669 A1 EP 2632669A1 EP 11808816 A EP11808816 A EP 11808816A EP 2632669 A1 EP2632669 A1 EP 2632669A1
Authority
EP
European Patent Office
Prior art keywords
adhesive
polyurethane
adhesive according
content
mixture
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.)
Withdrawn
Application number
EP11808816.0A
Other languages
German (de)
English (en)
Inventor
Herbert Mikowitsch
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP2632669A1 publication Critical patent/EP2632669A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B21/00—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board
    • B32B21/04—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board comprising wood as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B21/042—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board comprising wood as the main or only constituent of a layer, which is next to another layer of the same or of a different material of wood
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B21/00—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board
    • B32B21/13—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board all layers being exclusively wood
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2255/00—Coating on the layer surface
    • B32B2255/08—Coating on the layer surface on wood layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2419/00—Buildings or parts thereof
    • 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
    • C08G2170/00—Compositions for adhesives
    • C08G2170/80—Compositions for aqueous adhesives

Definitions

  • the invention relates to an adhesive containing an aqueous polyurethane composition.
  • the invention relates to a method for producing a wooden component constructed from at least two elements by hot-pressing the elements together.
  • a method for producing a wooden component constructed from at least two elements by hot-pressing the elements together.
  • adhesives based on urea or melamine-formaldehyde resins are currently used, one or two-component, which split off formaldehyde.
  • the formaldehyde cleavage is particularly at the presses in the furniture factories for workers hazardous regardless of the later exposure to formaldehyde in the living room.
  • the friction, contemporary solution differs from the known adhesives by a higher solids.
  • the terms solids and solids are used synonymously in this document.
  • the solids of the adhesive can be formed, for example, by binders, fillers, pigments and auxiliaries.
  • the solid has a significant influence on the formation of vapor bubbles in the moldings. Due to the solids content of the invention relatively high pressing temperatures can be used to achieve short pressing times, without causing vapor bubble formation. However, short press times are required for rapid economic production.
  • the solids in the system according to the invention is over 65%.
  • the polyurethane composition is a mixture of at least one polyurethane and at least one vinyl acetate-ethylene copolymer or a mixture of at least one polyurethane and at least one acrylate or a mixture of at least one polyurethane and at least one acrylate copolymer or a mixture of at least one polyurethane and at least one polyurethane copolymer.
  • the adhesive has a binder content of 50-80%.
  • This embodiment of the invention can be a simple way to ensure a high solids content, with little or no addition of fillers is required.
  • the production of the adhesive according to the invention can be substantially simplified in this way.
  • the adhesive may have a filler content of 0-50%. Due to the addition of fillers, the solids of the adhesive can be substantially increased and, if necessary, adapted to given requirements in a simple manner. Furthermore, the adhesive of the invention may have a solvent content of 0-5%.
  • At least one thickener for example Rheocoate 35, in an amount of 0-3% to the adhesive.
  • the adhesive can have a defoamer content of 0-5%.
  • the abovementioned object can also be achieved by a method of the type mentioned at the outset in that an adhesive according to the invention is applied between the elements to be pressed together before they are pressed.
  • the inventive method is particularly suitable for the production of window frames, although the method is not limited to such an application alone.
  • any other wood components, in the production of which hot pressing is used, can be produced with the method according to the invention.
  • the wood component may be a laminated wood laminate or molded wood veneer, wherein the adhesive is applied in an amount of 80-200 g / m 2 to a surface of another layer facing a surface of a layer, and the Layers are pressed together at a temperature between 50 and 200 ° C over a period of 5 to 30 minutes, preferably at a pressing pressure lying between 90 and 150 bar.
  • the high solids content in the adhesive according to the invention is responsible for the fact that during the pressing little steam is formed and therefore can also large-scale
  • the adhesive according to the invention has a solids content of more than 65%. This makes it possible to achieve a very good behavior with regard to the processing of wood veneers and laminated press forms. As particularly favorable, a solids content of more than 70%, in particular 71-95%, has been found.
  • a recipe for the preparation of an adhesive according to the invention is as follows:
  • Omyacarb 5 38,8% Omya Other recipes can be used instead of the recipe above.
  • the underlying emulsions or dispersions can be replaced by other suitable.
  • NeoRez R-9249 other polyurethane dispersions such as NeoRez R-2005, NeoRez R 989 and instead of Vinnapas 7200 other vinyl acetate ethylene copolymer dispersions or acrylate or acrylate copolymer dispersions can be used.
  • suitable dispersions are in the expert in large
  • the adhesive according to the invention is particularly suitable for use in the manufacture of a wood laminate or molding made of wood veneers composed of at least two layers.
  • the fiction, contemporary adhesive in an amount of 80 - 200g / m 2 are applied to a surface of at least one layer and then with at least one other layers at a lying between 50 - 200 ° C temperature over a
  • Period of 5 to 30 minutes are pressed or glued together. This can happen, for example, at a pressure of 90-150 bar.
  • any number of layers can be glued together and pressed together in the method according to the invention.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Adhesives Or Adhesive Processes (AREA)
  • Veneer Processing And Manufacture Of Plywood (AREA)

Abstract

L'invention concerne un adhésif contenant une composition polyuréthane aqueuse, qui présente une teneur en matières solides comprise entre 65,5 et 95%.
EP11808816.0A 2010-10-29 2011-09-28 Adhésif polyuréthane aqueux Withdrawn EP2632669A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ATA1793/2010A AT510651B1 (de) 2010-10-29 2010-10-29 Klebstoff
PCT/AT2011/050015 WO2012054950A1 (fr) 2010-10-29 2011-09-28 Adhésif polyuréthane aqueux

Publications (1)

Publication Number Publication Date
EP2632669A1 true EP2632669A1 (fr) 2013-09-04

Family

ID=45495554

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11808816.0A Withdrawn EP2632669A1 (fr) 2010-10-29 2011-09-28 Adhésif polyuréthane aqueux

Country Status (3)

Country Link
EP (1) EP2632669A1 (fr)
AT (1) AT510651B1 (fr)
WO (1) WO2012054950A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102585734B (zh) * 2012-01-18 2013-11-06 滨州职业学院 一种耐低温水性胶粘剂及其制备方法
CN112895028B (zh) * 2021-01-23 2022-05-10 浙江创通木业有限公司 无醛人造木板及其制备方法

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3897581A (en) * 1973-03-27 1975-07-29 Sumitomo Bakelite Co Plywood veneer of edge-bonded wet wood pieces and method of making same
US5652288A (en) * 1994-06-06 1997-07-29 Wood; Benny R. Water dispersible polyisocyanate adhesive
CA2215581A1 (fr) * 1996-09-16 1998-03-16 H.B. Fuller Licensing & Financing, Inc. Adhesifs a deux constituants a base d'eau caracterises par une stabilite en pot prolongee
US6632873B2 (en) * 2001-11-19 2003-10-14 Ashland, Inc. Two-part polyurethane adhesives for structural finger joints and method therefor
DE10331484A1 (de) * 2003-07-11 2005-03-03 Construction Research & Technology Gmbh Polyurethan-Polymer-Hybrid-Dispersion mit verbesserten Oberflächeneigenschaften, Verfahren zu ihrer Herstellung sowie deren Verwendung
ATE361350T1 (de) * 2003-09-19 2007-05-15 Basf Ag Einkomponentige selbstklebende dichtmasse
ATE450552T1 (de) 2005-03-17 2009-12-15 Dsm Ip Assets Bv Wässrige polyurethanzusammensetzungen
DE102005057482A1 (de) * 2005-11-30 2007-05-31 Fischerwerke Artur Fischer Gmbh & Co. Kg Klebestift mit Polyurethan/Polyacrylat-Hybriddispersion
CN101370842B (zh) * 2006-01-19 2011-11-09 巴斯夫欧洲公司 含有硅烷基团和碳二亚胺基团的聚氨酯粘合剂
JP2009542877A (ja) * 2006-07-12 2009-12-03 ビーエーエスエフ ソシエタス・ヨーロピア 添加剤としてシラン化合物を含有するポリウレタン接着剤
EP2303942A1 (fr) * 2008-06-03 2011-04-06 Dow Global Technologies Inc. Compositions adhésives activées par la chaleur et leur procédé de fabrication
WO2009149036A1 (fr) * 2008-06-03 2009-12-10 Dow Global Technologies Inc. Compositions d'adhésif sensibles à une pression et procédé de fabrication de celles-ci

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2012054950A1 *

Also Published As

Publication number Publication date
AT510651A1 (de) 2012-05-15
AT510651B1 (de) 2016-03-15
WO2012054950A1 (fr) 2012-05-03

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