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:
May. 17, 2011
Filed:
Jun. 20, 2008
Takao Yazaki, Tokyo, JP;
Nobuharu Suzuki, Tokyo, JP;
Shintaro Yamazaki, Tokyo, JP;
Atsushi Ishino, Tokyo, JP;
Takao Yazaki, Tokyo, JP;
Nobuharu Suzuki, Tokyo, JP;
Shintaro Yamazaki, Tokyo, JP;
Atsushi Ishino, Tokyo, JP;
Ichikawa Co., Ltd., Tokyo, JP;
Abstract
Disclosed is a shoe press belt () which comprises a reinforcing fibrous base material () embedded in a polyurethane layer, and has an outer circumference layer () and an inner circumference layer () each formed with a polyurethane. The polyurethane layer comprises a polyurethane which is produced by curing a composition comprising a mixture of an urethane prepolymer (A) and a curing agent (B). The urethane prepolymer (A) is produced by reacting an isocyanate compound (a) containing 55 to 100 mol % of a p-phenylene-diisocyanate compound with polytetramethylene glycol (b) and has an isocyanate group at its terminal. The curing agent (B) is selected from the group consisting of 1,4-butanediol, hydroquinone bis-βhydroxylethyl ether, 3,5-diethyltoluenediamine and 3,5-dimethylthiotoluenediamine. The belt () has excellent cracking resistance, bending fatigue resistance and wear resistance.