Phosphite additives in polyolefins
US7157511B2 · kind B2 · utility
17Cited by
19References
50Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 21, 2003 |
| Grant date | Jan 2, 2007 |
| Priority date | — |
| Expiry date | Jan 30, 2025 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K5/527
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The whiteness and stability after processing of a polyolefin have been found to be improved upon the addition of a combination of at least one high activity phosphite and at least one hydrolytically stable phosphite.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.