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:
Mar. 14, 2017
Filed:
Aug. 05, 2013
Applicant:
Kuraray Co., Ltd., Kurashiki-shi, JP;
Inventor:
Yusuke Tanaka, Kamisu, JP;
Assignee:
KURARAY CO., LTD., Kurashiki-shi, JP;
Primary Examiner:
Int. Cl.
CPC ...
C08G 18/76 (2006.01); C08G 18/66 (2006.01); C08G 18/32 (2006.01); C08G 18/48 (2006.01); C08G 18/67 (2006.01); C08G 18/40 (2006.01); C08G 18/42 (2006.01);
U.S. Cl.
CPC ...
C08G 18/7671 (2013.01); C08G 18/3206 (2013.01); C08G 18/6674 (2013.01); C08G 18/4018 (2013.01); C08G 18/4238 (2013.01); C08G 18/4854 (2013.01); C08G 18/673 (2013.01); C08G 2120/00 (2013.01);
Abstract
The present invention provides a thermoplastic polyurethane obtained by reacting organic diisocyanate (A), polymer polyol (B) having a number average molecular weight (Mn) of 1000-5000 and chain extender (C), wherein the chain extender (C) contains a straight chain diol (c-1) and a side chain alkyl group-containing diol (c-2), a molar ratio of the straight chain diol (c-1) and the side chain alkyl group-containing diol (c-2) (straight chain diol (c-1)/side chain alkyl group-containing diol (c-2)) in the chain extender (C) is 97/3-60/40, and a nitrogen atom content is not less than 1.5 mass % and less than 4.0 mass %.