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1. WO2021063757 - ACID-RESISTANT AND ALKALI-RESISTANT COMPOSITION

Publication Number WO/2021/063757
Publication Date 08.04.2021
International Application No. PCT/EP2020/076469
International Filing Date 23.09.2020
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 18/30 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
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 18/34 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
34Carboxylic acids; Esters thereof with monohydroxyl compounds
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
CPC
C08G 18/0804
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
18Polymeric products of isocyanates or isothiocyanates
06with compounds having active hydrogen
08Processes
0804Manufacture of polymers containing ionic or ionogenic groups
C08G 18/0823
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
18Polymeric products of isocyanates or isothiocyanates
06with compounds having active hydrogen
08Processes
0804Manufacture of polymers containing ionic or ionogenic groups
0819containing anionic or anionogenic groups
0823containing carboxylate salt groups or groups forming them
C08G 18/0828
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
18Polymeric products of isocyanates or isothiocyanates
06with compounds having active hydrogen
08Processes
0804Manufacture of polymers containing ionic or ionogenic groups
0819containing anionic or anionogenic groups
0828containing sulfonate groups or groups forming them
C08G 18/0866
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
18Polymeric products of isocyanates or isothiocyanates
06with compounds having active hydrogen
08Processes
0838Manufacture of polymers in the presence of non-reactive compounds
0842in the presence of liquid diluents
0861in the presence of a dispersing phase for the polymers or a phase dispersed in the polymers
0866the dispersing or dispersed phase being an aqueous medium
C08G 18/12
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON 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 18/302
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
18Polymeric products of isocyanates or isothiocyanates
06with compounds having active hydrogen
28characterised by the compounds used containing active hydrogen
30Low-molecular-weight compounds
302Water
Applicants
  • COVESTRO INTELLECTUAL PROPERTY GMBH & CO. KG [DE]/[DE]
Inventors
  • CHU, Yun
  • FAN, Zhirong
  • LIANG, Xutian
  • LI, Xuedong
Agents
  • LEVPAT
Priority Data
201910939340.330.09.2019CN
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) ACID-RESISTANT AND ALKALI-RESISTANT COMPOSITION
(FR) COMPOSITION RÉSISTANTE AUX ACIDES ET RÉSISTANTE AUX ALCALIS
Abstract
(EN)
The present invention relates to an acid-resistant and alkali-resistant composition, a preparation process thereof and use thereof in producing an article, and an article comprising a substrate coated or impregnated with the same and the preparation method and use of the article. The composition contains: at least one aqueous polyurethane dispersion having a carboxyl group; at least one crosslinking agent having an isocyanate reactive group; at least one crosslinking agent having a carboxyl reactive group; and optionally an additive; wherein, the amount of the carboxyl groups in said aqueous polyurethane dispersion is more than 0.05 wt%, based on the amount of said aqueous polyurethane dispersion being 100wt%; the amount of said crosslinking agent having an isocyanate reactive group is 0.2wt%-10wt%, based on the amount of said composition being 100wt%; the molar ratio of the carboxyl reactive groups to the carboxyl groups of said composition is more than 0.5. The film formed with the composition of the present invention has good acid-resistance and alkali-resistance. The product obtained by treating with the composition of the present invention has flat appearance and good handfeel.
(FR)
La présente invention concerne une composition résistante aux acides et résistante aux alcalis, un procédé de préparation associé et son utilisation dans la production d'un article, et un article comprenant un substrat revêtu ou imprégné de celui-ci et le procédé de préparation et l'utilisation de l'article. La composition contient : au moins une dispersion aqueuse de polyuréthane ayant un groupe carboxyle ; au moins un agent de réticulation ayant un groupe réactif avec un isocyanate ; au moins un agent de réticulation ayant un groupe réactif avec un carboxyle ; et éventuellement un additif ; la quantité des groupes carboxyle dans ladite dispersion aqueuse de polyuréthane étant supérieure à 0,05 % en poids, sur la base de la quantité de ladite dispersion aqueuse de polyuréthane étant de 100 % en poids ; la quantité dudit agent de réticulation ayant un groupe réactif avec un isocyanate étant de 0,2 % en poids à 10 % en poids, sur la base de la quantité de ladite composition étant de 100 % en poids ; le rapport molaire des groupes réactifs avec un carboxyle aux groupes carboxyle de ladite composition étant supérieur à 0,5. Le film formé avec la composition de la présente invention présente une bonne résistance aux acides et une bonne résistance aux alcalis. Le produit obtenu par traitement avec la composition de la présente invention présente un aspect plat et une bonne sensation au toucher.
Also published as
Latest bibliographic data on file with the International Bureau