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, 2023
Filed:
Feb. 18, 2021
Applicant:
Ichikawa Co., Ltd., Tokyo, JP;
Inventors:
Yuya Takamori, Tokyo, JP;
Manami Morinaga, Tokyo, JP;
Assignee:
Ichikawa Co., Ltd., Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
D21F 3/02 (2006.01); C08G 18/10 (2006.01); C08G 18/44 (2006.01); C08G 18/48 (2006.01); C08G 18/76 (2006.01); D21F 3/08 (2006.01);
U.S. Cl.
CPC ...
D21F 3/0236 (2013.01); C08G 18/10 (2013.01); C08G 18/44 (2013.01); C08G 18/4854 (2013.01); C08G 18/7671 (2013.01); D21F 3/086 (2013.01);
Abstract
A shoe press belt for use in a papermaking machine including at least one resin layer, where the resin layer contains a polyurethane resin formed by curing an urethane prepolymer having an isocyanate group with a curing agent having an active hydrogen group, where the urethane prepolymer is obtained by reacting a polyisocyanate compound containing 4,4'-methylene bis(phenylisocyanate) with a polyol compound containing polytetramethylene ether glycol, and the curing agent contains polycarbonate diol(s).