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:
Feb. 13, 2018
Filed:
Oct. 16, 2014
Sanyo Chemical Industries, Ltd., Kyoto, JP;
Toray Opelontex Co., Ltd., Tokyo, JP;
Yusuke Koike, Kyoto, JP;
Shinpei Funaoka, Kyoto, JP;
Kenzo Hori, Kyoto, JP;
Toshihiro Tanaka, Shiga, JP;
Shingo Ito, Shiga, JP;
Hiroshi Takayama, Shiga, JP;
SANYO CHEMICAL INDUSTRIES, LTD., Kyoto, JP;
TORAY OPELONTEX CO., LTD., Tokyo, JP;
Abstract
The present invention relates to a polyurethane resin including, as constituent units, a diol (a1) having a number average molecular weight of 500 to 10,000, an organic diisocyanate (b), and a chain extender (a2). The total concentration of urethane groups and urea groups in the polyurethane resin is 1.25 to 2.50 mmol/g based on the weight of the polyurethane resin. Hard segment domains of the polyurethane resin have an average domain size of 20 to 30 nm as measured with an atomic force microscope.