Siloxane-coated ammonium perchlorate and propellant compositions made therewith
US4124418A · kind A · utility
4Cited by
4References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 19, 1973 |
| Grant date | Nov 7, 1978 |
| Priority date | — |
| Expiry date | Apr 19, 1993 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC06B45/32
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Ammonium perchlorate particles having strongly adherent wettable coatings are made by treating the particles with stong amines that displace ammonia to form amine perchlorates at the particle surfaces. Silanylamines are preferred since after amination of the perchlorate the silane groups can be hydrolyzed to siloxanes having good wettability by liquid polymeric propellant binders. The coated perchlorate can be used to produce solid propellants having improved mechanical properties and burning characteristics.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.