Manufacture of polyvinyl chloride of low vinyl chloride monomer content by treatment of wet polyvinyl chloride
US3956249A · kind A · utility
20Cited by
3References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 24, 1974 |
| Grant date | May 11, 1976 |
| Priority date | — |
| Expiry date | Jun 24, 1994 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F6/005
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Vinyl chloride is removed from wet cakes that comprise a vinyl chloride polymer, vinyl chloride, and water by contacting the wet cakes with steam, preferably at atmospheric pressure and at a temperature in the range of 100.degree. to 125.degree.C.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.