Thermosettable epoxy resins with improved impact resistance

Details Thermosettable epoxy resins with improved impact resistance Thermosettable epoxy resins with improved impact resistance

1985-07-02

1986-07-22

Nielsen, Earl

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

523400, 528 45, 528 73, 528 89, 528 93, 528112, C08G 5962

Patent

active

046020705

ABSTRACT:
An advanced epoxy resin is prepared by reacting in the presence of a suitable catalyst such as ethyltriphenyl phosphonium acetate.acetic acid complex (A) a mixture containing (1) a polyglycidyl ether of a material containing at least two aliphatic hydroxyl groups per molecule such as a diglycidyl ether of a polyoxypropylene glycol and (2) a dicarboxylic acid such as malonic acid with (B) a dihydric phenol such as bisphenol A. These advanced epoxy resins are useful in the preparation of automobile paints, exterior coatings for beverage cans, coil coatings and adhesives.

REFERENCES:
patent: 2970983 (1961-02-01), Newey
patent: 3247136 (1966-04-01), Wynstra et al.
patent: 3280056 (1966-10-01), Masters
patent: 3446762 (1969-05-01), Lopez et al.
patent: 3951891 (1976-04-01), Topfl et al.
patent: 4486555 (1984-12-01), Kordomenos et al.
patent: 4486556 (1984-12-01), Kordomenos et al.
patent: 4533684 (1985-08-01), Kordomenos et al.

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