Patent · US Active

Polycarbonate diol

US8686107B2 · kind B2 · utility

0Cited by

4References

4Claims

0Family size

Assignee

ASAHI KASEI CHEMICALS CORPORATION · JP

Inventors

Tetsuo Masubuchi · Kawasaki, JP
Eizaburo Ueno · Tokyo, JP

Key dates

Filing date	Nov 4, 2008
Grant date	Apr 1, 2014
Priority date	—
Expiry date	Nov 4, 2028

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC09D175/06
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

A polycarbonate diol comprising repeating units represented by the following formula (A) and a terminal hydroxy group, 60-100 mol % of the repeating units represented by the formula (A) being repeating units represented by the following formula (B) or (C). The amount of the repeating units represented by the formula (B) is 60-100 mol % based on the total amount of the repeating units represented by the formula (A). The polycarbonate diol has a terminal primary OH ratio of 95% or higher. (A) (In the formula, R represents a C2-12 divalent aliphatic or alicyclic hydrocarbon.)

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.