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.
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Inventors:
HE XIAOGANG (CN)
LI ZHONGREN (CN)
ZHOU WEI (CN)
SHAN YONGSHENG (CN)
MA SHIJIE (CN)
WANG RENJIE (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:
Assignee:
JIANGSU CANLON BUILDING MAT CO LTD (CN)
International Classes:
C09D175/08; C08G18/66
Foreign References:
| CN112898889A | 2021-06-04 | |||
| CN109321122A | 2019-02-12 | |||
| CN108699220A | 2018-10-23 | |||
| CN110791165A | 2020-02-14 | |||
| CN110790880A | 2020-02-14 | |||
| CN1154981A | 1997-07-23 |
Attorney, Agent or Firm:
SUZHOU CREATOR PATENT & TRADEMARK AGENCY, LTD. (CN)
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