Composite protective coating for combustible cartridge cases
US3987731A · kind A · utility
22Cited by
6References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 16, 1976 |
| Grant date | Oct 26, 1976 |
| Priority date | — |
| Expiry date | Jan 16, 1996 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S102/70
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Porous combustible cartridge cases containing nitrocellulose, reinforcing bers and a resinous binder, are rendered resistant to water and oil by coating the surface with a composite coating containing an undercoating of polyvinyl alcohol and a top coating of a copolymer of vinylidene chloride and acrylonitrile.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.