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:
Aug. 27, 2024
Filed:
Nov. 27, 2019
Daicel Corporation, Osaka, JP;
DAICEL CORPORATION, Osaka, JP;
Abstract
Provided is a polyester polyol that can be used for forming a polyurethane excelling in durability and solvent resistance. A polyester polyol of the present invention is represented by Formula (1) and has a molecular weight distribution of less than 1.2: In Formula (1), Rand Rrepresent, identically or differently a divalent hydrocarbon group, and n is an integer. Rto Rrepresent, identically or differently a hydrogen atom, a monovalent hydrocarbon group, or a group represented by Formula (2): In Formula (2), m and s represent, identically or differently an integer of 1 or greater. 2m occurrences of Rrepresent, identically or differently a hydrogen atom, an alkyl group, or an alkoxy group. Note that at least two of the groups represented by Rto Rare represented by Formula (2):