High molecular weight polycaprolactone prepolymers used in high-energy formulations
US4775432A · kind A · utility
28Cited by
4References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 6, 1986 |
| Grant date | Oct 4, 1988 |
| Priority date | — |
| Expiry date | Nov 6, 2006 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G18/4277
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Poly(caprolactone) polymers are provided having molecular weights of 4000 or higher, are used to form propellant binders. When the high molecular weight poly(caprolactone) polymers are used in propellant formulations and cured with isocyanates of adequate functionality, propellants are produced having improved stress and strain characteristics relative to presently formulated propellants having binders of cured, lower molecular weight poly(caprolactone) polymers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.