Termination of vinyl halide polymerization
US4361683A · kind A · utility
4Cited by
8References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 26, 1981 |
| Grant date | Nov 30, 1982 |
| Priority date | — |
| Expiry date | May 26, 2001 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F2/42
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
An improvement in the method of terminating the preparation of vinyl halide-containing polymers is disclosed. The improvement comprises injecting into the polymerization reactor at the desired level of conversion a free radical inhibitor obtained by the alkylation of p-methoxyphenol with nonene. The free radical inhibitor also functions as an antioxidant in the polymer product.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.