Crosslinked chlorinated polyvinyl chloride resin compositions
US4983687A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 23, 1988 |
| Grant date | Jan 8, 1991 |
| Priority date | — |
| Expiry date | May 23, 2008 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F8/20
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Chlorinated polyvinyl chloride resins when crosslinked have improved melt strength in comparison with non-crosslinked chlorinated polyvinyl chloride resins. Moreover, the crosslinked chlorinated polyvinyl chloride resins have unexpected improved processing properties such as reduced processing torque in comparison with crosslinked polyvinyl chloride resins which upon crosslinking exhibit increased processing torque. Various amounts of non-crosslinked chlorinated polyvinyl chloride and/or non-crosslinked polyvinyl chloride which does not affect said improved properties can be blended with the crosslinked chlorinated polyvinyl chloride resins.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.