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:
Jul. 21, 2020
Filed:
Nov. 20, 2018
Beijing University of Chemical Technology, Beijing, CN;
Red Avenue New Materials Group Co., Ltd., Shanghai, CN;
Liqun Zhang, Beijing, CN;
Xuan Qin, Beijing, CN;
Bingyong Han, Beijing, CN;
Lixin Mao, Beijing, CN;
Xiaohui Wu, Beijing, CN;
Jun Liu, Beijing, CN;
Ning Zhang, Shanghai, CN;
Dong Dong, Beijing, CN;
Beijing University of Chemical Tehcnology, Beijing, CN;
Red Avenue New Materials Group Co., Ltd., Shanghai, CN;
Abstract
A solution polymerized styrene-butadiene rubber-polyurethane elastomer material and a preparation method thereof are provided. The elastomer material is prepared by performing cast molding on a soft segment and a hard segment in a mass ratio of 100:(20-50); the soft segment includes hydroxyl-terminated solution polymerized styrene-butadiene moiety rubber prepared by an anionic polymerization; the hard segment comprises isocyanate, a small-molecule polyol chain extender and a cross-linking agent; and the soft segment has a molecular weight of 1000-8000 and a glass-transition temperature of −20° C. to −30° C. According to the elastomer material in the disclosure, the hydroxyl-terminated solution polymerized styrene-butadiene rubber is introduced to serve as the soft segment on the basis of synthesis of the traditional polyurethane elastomer, so that the glass-transition temperature of the polyurethane elastomer is regulated, defects such as poor high temperature resistance and undesirable wet-skid resistant grip ability of an existing polyurethane tire are overcome.