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1. WO2022002784 - A POLYURETHANE COMPOSITION FOR PREPARING COMPOSITES

Publication Number WO/2022/002784
Publication Date 06.01.2022
International Application No. PCT/EP2021/067476
International Filing Date 25.06.2021
IPC
C08G 18/36 2006.1
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
36Hydroxylated esters of higher fatty acids
C08G 18/48 2006.1
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
48Polyethers
C08G 18/67 2006.1
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
67Unsaturated compounds having active hydrogen
C08G 18/24 2006.1
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
16Catalysts
22containing metal compounds
24of tin
C08L 75/08 2006.1
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
75Compositions of polyureas or polyurethanes; Compositions of derivatives of such polymers
04Polyurethanes
08from polyethers
C08G 18/73 2006.1
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
70characterised by the isocyanates or isothiocyanates used
72Polyisocyanates or polyisothiocyanates
73acyclic
Applicants
  • COVESTRO DEUTSCHLAND AG [DE]/[DE]
Inventors
  • DENG, Yan
  • CHEN, Ruqi
  • LIU, Liguo
  • LIU, Jingmei
Agents
  • LEVPAT
Priority Data
202010616599.730.06.2020CN
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) A POLYURETHANE COMPOSITION FOR PREPARING COMPOSITES
(FR) COMPOSITION DE POLYURÉTHANE POUR LA PRÉPARATION DE COMPOSITES
Abstract
(EN) The invention relates to a polyurethane composition for preparing composites, a polyurethane composite obtained by the preparation and a method for preparing the polyurethane composite. The polyurethane composition comprises: a) an isocyanate component; b) an isocyanate-reactive component; c) a radical reaction initiator and d) an organometallic catalyst; wherein the hydroxyl value of the component b) isocyanate-reactive component is 200 mgKOH/g to 700 mgKOH/g, and the molar ratio of isocyanate groups to hydroxyl groups of the composition is 0.6 to 1.5. The polyurethane composition of the present invention has the advantages of long pot life and simple operation process. The polyurethane composite comprising the polyurethane resin matrix prepared by the polyurethane composition of the present invention has both excellent weather resistance and mechanical strength.
(FR) L'invention concerne une composition de polyuréthane pour la préparation de composites, un composite de polyuréthane obtenu par la préparation et un procédé de préparation du composite de polyuréthane. La composition de polyuréthane comprend : a) un composant isocyanate ; b) un composant réagissant à l'isocyanate ; c) un amorceur de réaction radicalaire et d) un catalyseur organométallique ; la valeur hydroxyle du composant réagissant à l'isocyanate b) étant de 200 mgKOH/g à 700 mgKOH/g, et le rapport molaire des groupes isocyanate aux groupes hydroxyle de la composition étant de 0,6 à 1,5. La composition de polyuréthane de la présente invention présente les avantages d'une longue durée de vie en pot et d'un processus d'opération simple. Le composite de polyuréthane comprenant la matrice de résine de polyuréthane préparée par la composition de polyuréthane de la présente invention présente à la fois une excellente résistance aux intempéries et une excellente résistance mécanique.
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