Composite polymeric material formed with an epitaxial crystalline film of polymeric sulfur nitride, and method of preparing same
US4016331A · kind A · utility
4Cited by
0References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 26, 1976 |
| Grant date | Apr 5, 1977 |
| Priority date | — |
| Expiry date | Jan 26, 1996 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31938
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A composite polymeric material having metallic surface properties is prepared by subliming solid crystalline polymeric sulfur nitride to a vapor, and thereafter condensing the polymeric sulfur nitride vapor onto the surface of a highly-oriented thermoplastic polymeric substrate to thereby form on the substrate an epitaxial crystalline polymeric sulfur nitride film. The polymeric sulfur nitride film is completely oriented parallel to the direction of orientation of the substrate and has a relatively high degree of anisotropy with respect to its electrical conductivity and optical properties.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.