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US 4,374,751 AGranted
Polymerization initiator compositions
AssigneeGeneral Electric Company
InventorCharles D. Dudgeon
Life of this patent
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Abstract
Improved polymerization initiators are described. The combination of radiation sensitive sulfonium or iodonium salts of a Bronsted Acid with an activating peroxide compound may be employed to effect epoxide polymerization.
Claims16
A composition comprising an admixture of a polymerization initiator which is a radiation sensitive onium salt having the formula:
- [[R.sub.A X].sub.b.sup.+ [C].sup.-b ](R.sub.a X).sub.b.sup.+ (C).sup.-b
- wherein:
- each R is a monovalent organic aromatic radical;
- X is selected from the group consisting of sulfur and iodine;
- C is a Bronsted Acid polymerization catalyst precursor;
- a equals the absolute value of (the valence number of X minus 1);
- and
- b equals the absolute value of the valence number of C;
- in combination with an amount of a peroxide compound effective to activate said polymerization initiator.
6 more elements
Dependencies are inferred from the claim text.