Polyester polyols and mixtures made therefrom
US4525575A · kind A · utility
5Cited by
6References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 5, 1983 |
| Grant date | Jun 25, 1985 |
| Priority date | — |
| Expiry date | Aug 5, 2003 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G63/672
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention is directed to a polyester polyol having an hydroxyl number of from about 25 to about 130 and an acid number of 2 or less, produced by reacting PA1 (a) from about 40 to about 60 parts by weight of adipic acid, PA1 (b) from about 1 to about 20 parts by weight of ethylene glycol, PA1 (c) from about 1 to about 30 parts by weight of 1,4-butanediol, and PA1 (d) from about 5 to 50 parts by weight of a polyoxyethylene glycol having a molecular weight of from 106 to 680, the total parts of (a), (b), (c) and (d) being 100, and to a blend of such polyester polyol with 1,4-butanediol and/or ethylene glycol.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.