Use of substituted biaromatic β-diketone as stabilizing agent of halogenated polymers and resulting polymer
US7001940B2 · kind B2 · utility
0Cited by
5References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 26, 2002 |
| Grant date | Feb 21, 2006 |
| Priority date | — |
| Expiry date | Mar 26, 2022 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K5/07
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention relates to the use of a stabilising composition free of derivatives of 6-aminouracyl or 6-aminothiouracyl type, and comprising at least one β-diketone bearing two aromatic nuclei, at least one of which bears at least one substituent on one of the two orthopositions or on the paraposition; the said substituent being chosen from —R, —OR, —SR, —COOH, —O—CF3 and —S—CF3 radicals, in which formulae R is an alkyl radical. The invention also relates to halogenated polymers comprising such a stabilising composition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.