.epsilon.-Caprolactone co-polyesters useful for the preparation of polyurethane
US4415728A · kind A · utility
17Cited by
11References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 25, 1980 |
| Grant date | Nov 15, 1983 |
| Priority date | — |
| Expiry date | Feb 25, 2000 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G18/4286
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The invention disclosed relates to novel .epsilon.-caprolactone co-polyesters which when combined with diisocyanates are useful as binders in solid urethane-type propellant formulations. Said co-polyesters are prepared by the reaction, in the presence of a catalyst, of epsilon-caprolactone, a diol (as a co-catalyst for the reaction) and a dicarboxylic acid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.