Propellant binder prepared from a PCP/HTPB block polymer
US4853051A · kind A · utility
12Cited by
7References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 5, 1988 |
| Grant date | Aug 1, 1989 |
| Priority date | — |
| Expiry date | May 5, 2008 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC06B45/10
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Binders for propellants for the like comprise elastomers which are based on block copolymers in which a pair of poly(caprolactone) blocks flank a central hydroxyl-terminated poly(butadiene) block. The block polymers are cured with isocyanates through the OH termini of the poly(caprolactone) blocks. The elastomers have inherent energies and other characteristics intermediate those of PCP and HTPB and have good compatibility with nitrate ester plasticizers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.