Chemicals for treatment of PVC
US4229598A · kind A · utility
3Cited by
14References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 14, 1978 |
| Grant date | Oct 21, 1980 |
| Priority date | — |
| Expiry date | Dec 14, 1998 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K5/13
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Butylation of a mixture of xylenols and trimethylphenols gives a product which is suitable for use as a stabilizer for polyvinyl chloride. The material can be added to the reactor during polymerization as a short-stopper and retain effectiveness as a stabilizer in the finished polymer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.