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Patent Searching and Data


Title:
POLYURETHANE WATERPROOF COATING, PREPARATION METHOD THEREFOR AND USE THEREOF
Document Type and Number:
WIPO Patent Application WO/2022/160584
Kind Code:
A1
Abstract:
Disclosed are a polyurethane waterproof coating, a preparation method therefor and the use thereof. The polyurethane waterproof coating comprises a polyurethane prepolymer and an auxiliary agent, wherein the raw material of the polyurethane prepolymer comprises a polyol, an isocyanate and a secondary amine compound, wherein the secondary amine compound is selected from one or a combination of more of the compounds represented by formula (I): wherein R1 is a branched chain alkylene, R2 is H or a C1-10 alkyl, or a C1-10 alkyl substituted by one or more of a C1-6 alkyl and a C1-6 alkoxy, or a phenyl; the polyurethane prepolymer is prepared by mixing the polyol, the secondary amine compound and part of the isocyanate for a reaction, and then adding the rest of the isocyanate for a futher reaction; and the waterproof coating of the present invention is suitable for machine spraying onto a high-temperature base layer, can combine the sagging resistance and viscosity balance, and is especially suitable for spraying construction on a base layer with a temperature of 50ºC or more.

Inventors:
HE XIAOGANG (CN)
LI ZHONGREN (CN)
ZHOU WEI (CN)
SHAN YONGSHENG (CN)
MA SHIJIE (CN)
WANG RENJIE (CN)
Application Number:
PCT/CN2021/102729
Publication Date:
August 04, 2022
Filing Date:
June 28, 2021
Export Citation:
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Assignee:
JIANGSU CANLON BUILDING MAT CO LTD (CN)
International Classes:
C08G18/66; C09D175/08
Foreign References:
CN112898889A2021-06-04
CN109321122A2019-02-12
CN108699220A2018-10-23
CN110791165A2020-02-14
CN110790880A2020-02-14
CN1154981A1997-07-23
Attorney, Agent or Firm:
SUZHOU CREATOR PATENT & TRADEMARK AGENCY, LTD. (CN)
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