Title:
MOISTURE CURABLE POLYURETHANE HOT-MELT ADHESIVE HAVING IMPROVED INITIAL STRENGTH
Document Type and Number:
WIPO Patent Application WO/2023/168622
Kind Code:
A1
Abstract:
The invention relates to a moisture curable adhesive composition comprising at least one isocyanate-functional polyurethane polymer P obtained by reacting: a) A polyol composition comprising a1) At least one at 25 ℃ solid polyester polyol PO1 and a2) At least one polyether polyol PO2, and b) At least one polyisocyanate PI, wherein the at least one polyether polyol PO2 has a hydroxyl-number determined according to ISO 4629-2: 2016 standard of at least 100 mg KOH/g, preferably at least 150 mg KOH/g. The invention is also related to use of the adhesive composition as an assembly adhesive, laminating adhesive, or as an adhesive for the building of sandwich elements, particularly as an interior laminating adhesive in automotive industry.
Inventors:
GONG HONGLIANG (CN)
ZHANG WEIMING (CN)
JENDOUBI ELYES (JP)
ZHANG WEIMING (CN)
JENDOUBI ELYES (JP)
Application Number:
PCT/CN2022/079899
Publication Date:
September 14, 2023
Filing Date:
March 09, 2022
Export Citation:
Assignee:
SIKA TECH AG (CH)
GONG HONGLIANG (CN)
GONG HONGLIANG (CN)
International Classes:
C08G18/32; C08G18/12; C08G18/42; C08G18/48; C08G18/66; C08G18/76; C09J175/04
Foreign References:
| EP3315528A1 | 2018-05-02 | |||
| EP3315527B1 | 2021-05-05 |
Attorney, Agent or Firm:
CCPIT PATENT AND TRADEMARK LAW OFFICE (CN)
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