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Title:
SULFONIC ACID-MODIFIED POLYISOCYANATE AND PREPARATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2022/257585
Kind Code:
A1
Abstract:
The present disclosure discloses sulfonic acid-modified polyisocyanate and a preparation method therefor. By controlling the content of a cyclohexylamine component in raw materials, and promoting the reaction rate of an aminosulfonic acid and polyisocyanate to be accelerated, a prepared product has the advantages of being light in color, low in turbidity, and good in storage stability.

Inventors:
YIN XUNDI (CN)
JI XUESHUN (CN)
JIN YUNQUAN (CN)
WANG CUICUI (CN)
SHEN RUBAO (CN)
CAO YUYANG (CN)
Application Number:
PCT/CN2022/085827
Publication Date:
December 15, 2022
Filing Date:
April 08, 2022
Export Citation:
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Assignee:
WANHUA CHEMICAL GROUP CO LTD (CN)
International Classes:
C09D175/08; C08G18/38; C08G18/66; C08G18/78; C08G18/80
Domestic Patent References:
WO2020109189A12020-06-04
Foreign References:
CN112041369A2020-12-04
CN110092887A2019-08-06
CN104448232A2015-03-25
CN111517994A2020-08-11
CN1429240A2003-07-09
US5202377A1993-04-13
CN112062935A2020-12-11
CN110387030A2019-10-29
CN1190450C2005-02-23
CN104448232A2015-03-25
DE1670666A11971-07-01
DE1954093A11970-06-18
DE2414413A11975-10-02
DE2452532A11976-05-13
DE2641380A11978-03-16
DE3700209A11988-07-21
DE3900053A11990-07-12
DE3928503A11991-03-07
EP0336205A21989-10-11
EP0339396A11989-11-02
EP0798299A11997-10-01
Other References:
See also references of EP 4144780A4
Attorney, Agent or Firm:
BEYOND ATTORNEYS AT LAW (CN)
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