Phosphonite compounds as process stabilizers
US11767413B2 · kind B2 · utility
0Cited by
3References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 20, 2020 |
| Grant date | Sep 26, 2023 |
| Priority date | — |
| Expiry date | Jun 9, 2040 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2207/062
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention relates to a composition comprising one or more (co)polymers and one or more phosphonite compounds that contain cardanol moieties. Moreover, the present invention also refers to the use of the phosphonite compounds as process stabilizers, in particular refers to the use of such compounds for stabilizing and/or reducing the Yellowness Index of a (co)polymer composition exposed to heat and/or mechanical stress.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.