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:
Dec. 12, 2023
Filed:
Sep. 20, 2019
Applicant:
Dainichiseika Color & Chemicals Mfg. Co., Ltd., Chuo-ku, JP;
Inventors:
Assignee:
DAINICHISEIKA COLOR & CHEMICALS MFG. CO., LTD., Chuo-ku, JP;
Primary Examiner:
Int. Cl.
CPC ...
D06N 3/14 (2006.01); D06N 3/00 (2006.01);
U.S. Cl.
CPC ...
D06N 3/14 (2013.01); D06N 3/0036 (2013.01); D06N 3/0043 (2013.01); D06N 2211/28 (2013.01);
Abstract
Provided is a porous layer structure including a base material (A) and a urethane foam layer provided on the base material (A), wherein the urethane foam layer is a foam layer formed by foaming a urethane prepolymer having an isocyanate group, the urethane foam layer has a density of 0.10 to 0.60 g/cm, and the urethane prepolymer substantially contains no volatile component and satisfies a predetermined composition.