Process for extruding and cross-linking olefin polymers, diolefin polymers, and copolymers of olefins and diolefins and copolymerizable monomers
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United States of America Patent
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Jun 24, 1980
Grant Date -
N/A
app pub date -
Sep 19, 1978
filing date -
Sep 19, 1977
priority date (Note) -
Expired
status (Latency Note)
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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.
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