Hindered amine light stabilizers comprising neoalkanediol phosphites
US7442732B2 · kind B2 · utility
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17Claims
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Key dates
| Filing date | Mar 29, 2005 |
| Grant date | Oct 28, 2008 |
| Priority date | — |
| Expiry date | Oct 6, 2026 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07F9/6571
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Disclosed herein are compounds of the structure:wherein R1, R2, R3, R4, R5, and R6 are independently selected alkyl groups, provided that R1 is different from R2. The compounds are useful as stabilizers for thermoplastic resins.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.