Process for preparing vinyl chloride copolymers with diacrylate of polyhydric alcohol
US5006623A · kind A · utility
2Cited by
1References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 6, 1989 |
| Grant date | Apr 9, 1991 |
| Priority date | — |
| Expiry date | Jun 6, 2009 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F8/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A process for preparing a vinyl chloride copolymer which comprises polymerizing a vinyl chloride monomer or a mixture of a major proportion of a vinyl chloride monomer with a minor proportion of a copolymerizable monomer and at least one crosslinking agent selected from polyhydric alcohol diglycidyl ether diacrylates and dimethacrylates. The crosslinking agent is added to the reaction system after polymerization of the vinyl chloride monomer or the mixture proceeds to a certain extent. By this, the resultant copolymer has good processability and good mechanical and electric characteristics.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.