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. 22, 2011
Filed:
May. 14, 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 constituting the outer circumference layer () comprises a polyurethane which is cured by the reaction of an urethane prepolymer (A) with a curing agent mixture (B). The urethane prepolymer (A) is produced by reacting an isocyanate compound selected from p-phenylene-diisocyanate and 4,4'-methylenebis(phenylisocyanate) with a polytetramethylene glycol and has an isocyanate group at its terminal. The curing agent mixture (B) comprises 1,4-butanediol and an aromatic polyamine having an active hydrogen group (H). The shoe press belt has excellent wear resistance, cracking resistance and bending fatigue resistance.