Polymer compositions
US4121025A · kind A · utility
15Cited by
13References
14Claims
0Family size
Inventor
Key dates
| Filing date | Jul 20, 1971 |
| Grant date | Oct 17, 1978 |
| Priority date | — |
| Expiry date | Jul 20, 1991 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S260/43
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The invention provides means for controlling the degradation of vinyl polymers by incorporating therein at least one non-ionic organo-soluble complex of a metal having an atomic number from 22 to 29, 40 to 47 or 57 to 79, the complex being activatable by light and optionally heat to give a more photo-oxidatively active form of the said metal, in an amount such as to cause degradation of the polymer at the end of the desired life of the composition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.