Epoxy-acrylic graft copolymers with phosphonium cocatalysts carb

Details Epoxy-acrylic graft copolymers with phosphonium cocatalysts carb Epoxy-acrylic graft copolymers with phosphonium cocatalysts carb

1990-10-04

1992-05-26

Bleutge, John C.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

523411, 523412, 525531, C08F28310

Patent

active

051168880

ABSTRACT:
A process for non-aqueous copolymerization of ethylenically unsaturated monomers including carboxyl functional monomers in the presence of epoxy resin by in-situ copolymerization is improved by utilizing a catalyst (initiator) combination of less than 2% peroxide and between 0.05% and 0.1% phosphonium catalyst. The carboxyl functional polymer can be aminated and dispersed into water to produce a protective coating composition useful for interior surfaces of beer and beverage cans.

REFERENCES:
patent: 4212781 (1980-07-01), Evans
patent: 4285847 (1981-08-01), Ting
patent: 4540752 (1985-10-01), McFadden

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