Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...
Patent
1984-08-20
1985-06-11
Schofer, Joseph L.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Polymers from only ethylenic monomers or processes of...
5263297, C08F 432
Patent
active
045229910
ABSTRACT:
Organic peroxydicarbonates represented by the following graphic formula are described. ##STR1## In the formula, R and R' are each selected from an alkyl group containing from 1 to 4 carbon atoms, a cycloalkyl group of from 5 to 7 carbon atoms, a C.sub.1 -C.sub.4 alkyl substituted cycloalkyl group, or participate in a cycloalkyl group having from 5 to 7 carbon atoms, provided that when one of R and R' is cycloalkyl, the other is alkyl. The peroxydicarbonates are useful as initiators for the polymerization or copolymerization of ethylenically unsaturated monomers or the cross-linking of unsaturated polyester resins. The organic peroxydicarbonates can be used in combination with commercially available peroxydicarbonates, particularly those having a shorter half-life.
REFERENCES:
Chem. Abstracts vol. 82, 1975 entry 44078d.
Kulkosky Peter F.
PPG Industries Inc.
Schofer Joseph L.
Stein Irwin M.
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