Title:
METHOD FOR PREPARING REACTIVE SEALANT RESIN
Document Type and Number:
WIPO Patent Application WO/2020/133062
Kind Code:
A1
Abstract:
Disclosed by the present invention is a method for preparing a reactive sealant resin, the method comprising: (1) under the action of an alkali catalyst, polymerizing a hydroxyl-containing initiator with an epoxy compound to obtain a polyether polyol; (2) adding an alkoxide reagent and a halogenated end-capping agent containing a double bond to the polyether polyol obtained in step (1) for reaction, so as to obtain a crude double-bonded polyether product, and refining the crude product to obtain a modified polyether product; and (3) subjecting the modified polyether and hydrogen-containing silane to silane end-capping reaction under the action of a hydrosilylation catalyst, so as to obtain the target product, i.e., a reactive sealant resin. The resin has excellent properties as well as good adhesion and paintability.
Inventors:
JU CHANGXUN (CN)
LIU BIN (CN)
WANG YONGMING (CN)
YE TIAN (CN)
SHI ZHENGYANG (CN)
LI YUAN (CN)
HUA WEIQI (CN)
LIU BIN (CN)
WANG YONGMING (CN)
YE TIAN (CN)
SHI ZHENGYANG (CN)
LI YUAN (CN)
HUA WEIQI (CN)
Application Number:
PCT/CN2018/124350
Publication Date:
July 02, 2020
Filing Date:
December 27, 2018
Export Citation:
Assignee:
WANHUA CHEMICAL GROUP CO LTD (CN)
WANHUA CHEMICAL NINGBO CO LTD (CN)
SHANGHAI WANHUA KEJU CHEMICAL TECH DEVELOPMENT CO LTD (CN)
WANHUA CHEMICAL NINGBO CO LTD (CN)
SHANGHAI WANHUA KEJU CHEMICAL TECH DEVELOPMENT CO LTD (CN)
International Classes:
C09J171/02; C08G65/28; C08G65/336
Foreign References:
| CN108102089A | 2018-06-01 | |||
| CN109071798A | 2018-12-21 | |||
| CN101921393A | 2010-12-22 | |||
| EP2093244A1 | 2009-08-26 | |||
| JP2012031412A | 2012-02-16 | |||
| CN106833481A | 2017-06-13 | |||
| CN104350084A | 2015-02-11 | |||
| CN102408538A | 2012-04-11 |
Other References:
See also references of EP 3904482A4
Attorney, Agent or Firm:
BOSS&YOUNG PATENT AND TRADEMARK LAW OFFICE (CN)
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