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. 21, 2024
Filed:
Jul. 27, 2022
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 18/32 (2006.01); D21F 7/08 (2006.01);
U.S. Cl.
CPC ...
D21F 3/0236 (2013.01); C08G 18/3221 (2013.01); D21F 7/083 (2013.01); C08G 18/10 (2013.01);
Abstract
A papermaking device may have excellent strength and suppressed unevenness in strength between its parts. Such a papermaking device may be used in papermaking machine and may include at least one resin layer comprising polyurethane resin. The polyurethane resin may be obtained by reacting a urethane prepolymer having an isocyanate group with a curing agent having an active hydrogen group. The urethane prepolymer may be obtained by reacting a polyisocyanate compound including 2,4-tolylene-diisocyanate and/or 2,6-tolylene-diisocyanate with a polyol compound including one or more polyether polycarbonate diol(s).