Ultraviolet and thermally stable polymer compositions
US3965096A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 8, 1973 |
| Grant date | Jun 22, 1976 |
| Priority date | — |
| Expiry date | Nov 8, 1993 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G73/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A new class of polymers is provided, namely, poly (diarylsiloxy) arylazines. These novel polymers have a basic chemical composition which has the property of stabilizing the optical and physical properties of the polymer against the degradative effect of ultraviolet light and high temperatures. This stabilization occurs at wavelengths including those shorter than found on the surface of the earth and in the absence or presence of oxygen, making the polymers of the present invention useful for high performance coating applications in extraterrestrial space as well as similar applications in terrestrial service. The invention also provides novel aromatic azines which are useful in the preparation of polymers such as those of the present invention.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.