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1. WO2020200867 - AQUEOUS POLYURETHANE-UREA DISPERSION

Publication Number WO/2020/200867
Publication Date 08.10.2020
International Application No. PCT/EP2020/057934
International Filing Date 23.03.2020
IPC
C08G 18/08 2006.01
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
18Polymeric products of isocyanates or isothiocyanates
06with compounds having active hydrogen
08Processes
C08G 18/12 2006.01
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
18Polymeric products of isocyanates or isothiocyanates
06with compounds having active hydrogen
08Processes
10Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
12using two or more compounds having active hydrogen in the first polymerisation step
C08G 18/32 2006.01
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
18Polymeric products of isocyanates or isothiocyanates
06with compounds having active hydrogen
28characterised by the compounds used containing active hydrogen
30Low-molecular-weight compounds
32Polyhydroxy compounds; Polyamines; Hydroxy amines
C08G 18/38 2006.01
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
18Polymeric products of isocyanates or isothiocyanates
06with compounds having active hydrogen
28characterised by the compounds used containing active hydrogen
30Low-molecular-weight compounds
38having hetero atoms other than oxygen
C08G 18/42 2006.01
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
18Polymeric products of isocyanates or isothiocyanates
06with compounds having active hydrogen
28characterised by the compounds used containing active hydrogen
40High-molecular-weight compounds
42Polycondensates having carboxylic or carbonic ester groups in the main chain
C08G 18/66 2006.01
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
18Polymeric products of isocyanates or isothiocyanates
06with compounds having active hydrogen
28characterised by the compounds used containing active hydrogen
65Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
66Compounds of groups C08G18/42, C08G18/48, or C08G18/52111
Applicants
  • COVESTRO INTELLECTUAL PROPERTY GMBH & CO. KG [DE]/[DE]
Inventors
  • JIN, Chen
  • ZHU, Yingdan
  • AVTOMONOV, Evgeny
Agents
  • LEVPAT
Priority Data
19171742.030.04.2019EP
201910256347.529.03.2019CN
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) AQUEOUS POLYURETHANE-UREA DISPERSION
(FR) DISPERSION AQUEUSE DE POLYURÉTHANE-URÉE
Abstract
(EN)
The present invention relates to an aqueous polyurethane-urea dispersion and a preparation process thereof, an adhesive containing the same, and an adhesion article obtained by adhering with said adhesive. The aqueous polyurethane-urea dispersion comprises a polyurethane-urea dispersed therein, said polyurethane-urea is obtained from a reaction of a system comprising the following components: a polyisocyanate mixture; a polyester polyol having a melting temperature of greater than 32°C, wherein the melting temperature is measured by using a DSC-7 from Perkin-Elmer at 20- 100°C according to DIN 65467, and taken from the first temperature-rising curve; an emulsifier; an optional monohydroxy polyether and an optional diamine; the polyisocyanate mixture contains hexamethylene diisocyanate and dicyclohexylmethane diisocyanate, the amount of hexamethylene diisocyanate is 0.01wt%-25wt%, the amount of dicyclohexylmethane diisocyanate is 0.01wt%-6wt%, based on the amount of the system as 100wt%. The adhesive containing the aqueous polyurethane-urea dispersion of the present invention has a low activation temperature and a good mechanical property.
(FR)
La présente invention concerne une dispersion aqueuse de polyuréthane-urée et son procédé de préparation, un adhésif contenant celle-ci et un article d'adhérence obtenu par adhérence avec ledit adhésif. La dispersion aqueuse de polyuréthane-urée comprend une polyuréthane-urée dispersée dans celle-ci, ladite polyuréthane-urée étant obtenue à partir d'une réaction d'un système comprenant les composants suivants : un mélange de polyisocyanates ; un polyester polyol ayant une température de fusion supérieure à 32 °C, la température de fusion étant mesurée à l'aide d'un DSC-7 de Perkin-Elmer à 20 à 100 °C selon la norme DIN 65467, et prise à partir de la première courbe de montée en température ; un émulsifiant ; un monohydroxypolyéther facultatif et une diamine facultative ; le mélange de polyisocyanates contient du diisocyanate d'hexaméthylène et du diisocyanate de dicyclohexylméthane, la quantité de diisocyanate d'hexaméthylène est de 0,01 % en poids à 25 % en poids, la quantité de diisocyanate de dicyclohexylméthane est de 0,01 % en poids à 6 % en poids, sur la base de la quantité du système égale à 100 % en poids. L'adhésif contenant la dispersion aqueuse de polyuréthane-urée de la présente invention présente une faible température d'activation et une bonne propriété mécanique.
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