The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 22, 2024
Filed:
Dec. 27, 2018
Wanhua Chemical Group Co., Ltd., Yantai, CN;
Wanhua Chemical (Ningbo) Co., Ltd., Ningbo, CN;
Changxun Ju, Yantai, CN;
Bin Liu, Yantai, CN;
Mingyong Wang, Yantai, CN;
Tian Ye, Yantai, CN;
Zhengyang Shi, Yantai, CN;
Yuan Li, Yantai, CN;
Weiqi Hua, Yantai, CN;
WANHUA CHEMICAL GROUP CO., LTD., Yantai, CN;
WANHUA CHEMICAL (NINGBO) CO., LTD., Ningbo, CN;
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.