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:
Oct. 17, 2023
Filed:
Nov. 30, 2020
Applicant:
Kuraray Co., Ltd., Kurashiki, JP;
Inventors:
Azusa Oshita, Kurashiki, JP;
Minori Takegoshi, Kurashiki, JP;
Mitsuru Kato, Kurashiki, JP;
Chihiro Okamoto, Kurashiki, JP;
Shinya Kato, Chiyoda-ku, JP;
Assignee:
KURARAY CO., LTD., Kurashiki, JP;
Primary Examiner:
Int. Cl.
CPC ...
C08G 18/38 (2006.01); B24B 37/24 (2012.01); C08G 18/32 (2006.01); C08G 18/76 (2006.01); H01L 21/3105 (2006.01); H01L 21/321 (2006.01); C08G 18/08 (2006.01); B24D 3/00 (2006.01); B24D 3/34 (2006.01);
U.S. Cl.
CPC ...
C08G 18/3819 (2013.01); B24B 37/24 (2013.01); B24D 3/00 (2013.01); B24D 3/002 (2013.01); B24D 3/346 (2013.01); C08G 18/0895 (2013.01); C08G 18/3206 (2013.01); C08G 18/7671 (2013.01); H01L 21/31053 (2013.01); H01L 21/3212 (2013.01);
Abstract
A Schiff base-containing chain extender may be a diol having a Schiff base or a derivative thereof, as well as a polyurethane produced using the same and a modification method thereof, and a polishing layer including a polyurethane and a polishing method using the polishing layer.