Process for extruding and cross-linking olefin polymers, diolefin polymers, and copolymers of olefins and diolefins and copolymerizable monomers
US4209597A · kind A · utility
10Cited by
3References
30Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 19, 1978 |
| Grant date | Jun 24, 1980 |
| Priority date | — |
| Expiry date | Sep 19, 1998 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S425/016
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A process is provided for extruding and cross-linking olefin polymers, diolefin polymers and copolymers thereof with other olefins, diolefins, or monomers copolymerizable therewith, using as the cross-linking agent an azo compound of the formula: ##STR1## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are alkyl having from one to about six carbon atoms. The process is of particular application in the production of cross-linked pipe of such polymers and copolymers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.