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:
Jul. 01, 2025
Filed:
Jul. 19, 2019
Kuraray Co., Ltd., Kurashiki, JP;
Kiyofumi Kadowaki, Kurashiki, JP;
Mitsuru Kato, Kurashiki, JP;
Minori Takegoshi, Kurashiki, JP;
Chihiro Okamoto, Kurashiki, JP;
Shinya Kato, Chiyoda-ku, JP;
KURARAY CO., LTD., Kurashiki, JP;
Abstract
There is used a polyurethane for polishing layers that can be used as a material of a polishing layer of a polishing pad, the polyurethane including a thermoplastic polyurethane that is a reaction product of a polyurethane raw material including a polymer diol, an organic diisocyanate, and a chain extender, wherein the chain extender contains 50 mass % or more of a first chain extender including a straight-chain carbon backbone having 7 to 12 carbon atoms.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile