Modified epoxy resin composition

Details Modified epoxy resin composition Modified epoxy resin composition

1981-12-22

1983-02-01

Lieberman, Paul

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

Synthetic resins

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

525113, 525529, 525533, 528110, 528113, C08L 6300

Patent

active

043716652

ABSTRACT:
Modified epoxy resin composition having excellent flexibility and excellent compatibility with conventional epoxy resins as well as the original properties of the epoxy resin before modified such as mechanical strength, adhesion, heat resistance and chemical resistance, which is obtained by treating an epoxy resin with at least one modified adduct [D] of a conjugated diene polymer or copolymer which has an imido bond and/or amido bond and a semi-ester structure and has an acid value owing to a free carboxyl group of 5 to 100, said modified adduct being obtained by reacting an adduct [A] of a polymer of a conjugated diene having a number average molecular weight of 300 to 20,000 or a copolymer of the conjugated diene and a vinyl monomer with an .alpha.,.beta.-unsaturated dicarboxylic acid or its anhydride, with a compound [B] of the formula: ##STR1## and a compound [C] of the formula:

REFERENCES:
patent: 4116900 (1978-09-01), Belanger
patent: 4298656 (1981-11-01), Mendelsohn
patent: 4335031 (1982-06-01), Hazah

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