Polymeric light stabilizers
US4480084A · kind A · utility
3Cited by
18References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 13, 1983 |
| Grant date | Oct 30, 1984 |
| Priority date | — |
| Expiry date | Oct 13, 2003 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D163/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
This invention is directed to polymeric compounds which contain the polyalkylpiperidine radical and at least two primary hydroxyl groups. These compounds are useful as light stabilizers for plastics and coatings. More particularly, the polymeric stabilizers is formed by chain extending polyalkylpiperidine with an excess of epoxy resin to form a diepoxide functional polymer which is then capped with hydroxy functional monomer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.