Polymer-type polymerization initiator

Details Polymer-type polymerization initiator Polymer-type polymerization initiator

1991-09-03

1992-07-28

Smith, Edward J.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526247, 526264, 526279, C08F22610, C08F21418

Patent

active

051342138

ABSTRACT:
A polymer-type polymerization initiator produced by copolymerizing (A) 40 to 60 mole % of an N-vinyllactam and (B) 60 to 40 mole % of at least one fumarate containing a peroxy group, the peroxy-fumarate (B) being represented by the following formula: ##STR1## wherein R1 is a linear alkyl, branched alkyl or cycloalkyl group containing not more than 18 carbon atoms, or an aromatic hydrocarbon group containing 6 to 18 carbon atoms; and R2 is a linear alkyl, branched alkyl or cycloalkyl group containing not more than 13 carbon atoms, or a phenyl group.
The peroxy-fumarate (b1) may be used in combination with (b2) at least one diester of fumaric acid selected from the group consisting of alkyl fluoroalkyl fumarate, alkyl silicon-containing-alkyl fumarate, fluoroalkyl silicon-containing-alkyl fumarate, bis(fluoroalkyl) fumarate, and bis(silicon-containing-alkyl) fumarate, a mole ratio of the peroxy-fumarate to the diester of fumaric acid falling within a range of 9 to 1 to 1 to 9.

REFERENCES:
patent: 4868260 (1989-09-01), Kawaguchi
"Polymerization of Methacrylic Monomer Functioning as Initiator," Polymer Reprints, by S. Yamada et al., Japan, vol. 33, No. 6 (1984).

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