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:
Jan. 27, 1987
Filed:
Feb. 06, 1986
Koji Hirai, Kurashiki, JP;
Shunro Taniguchi, Kurashiki, JP;
Michihiro Ishiguro, Kurashiki, JP;
Yoshifumi Murata, Kurashiki, JP;
Shinichi Yokota, Kurashiki, JP;
Masao Ishii, Kurashiki, JP;
Noriaki Yoshimura, Kurashiki, JP;
Takayuki Okamura, Okayama, JP;
Kuraray Co., Ltd., Kurashiki, JP;
Abstract
A process for producing a novel polyester polyurethane having excellent hydrolysis resistance and excellent flexibility at low temperature, which is obtained from a polyisocyanate and a polyester polyol which is obtained by reaction a dicarboxylic acid with a mixture of 1,9-nonanediol and a polyol represented by the formula ##STR1## wherein R.sup.1 denotes methyl group or ethyl group, R.sup.2 denotes hydrogen atom, methyl group, ethyl group, hydroxymethyl group or hydroxyethyl group, and n is an integer of 1 to 5, said polyester polyol having an average molecular weight of 500 to 30,000.