Composition of epoxide resins, polycarboxylic acid anhydrides an

Details Composition of epoxide resins, polycarboxylic acid anhydrides an Composition of epoxide resins, polycarboxylic acid anhydrides an

1974-12-06

1976-09-07

Lieberman, Paul

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260 16, 260 332EP, 260 336EP, 260 37EP, 260 4OR, 260 75EP, 260824EP, 260836, 260837R, C08L 6300

Patent

active

039794776

ABSTRACT:
Curable epoxide resin mixtures based on long-chain adducts containing epoxide groups, which are obtained by reaction of certain long-chain aliphatic polyesters with an excess of diepoxide compounds, polycarboxylic acid anhydrides and linear polyester-dicarboxylic acids containing carbocyclic or heterocyclic rings, which mixtures contain, per 1 equivalent of epoxide groups, 0.2-0.8 mol of polycarboxylic acid anhydride and 0.8-0.2 equivalent of carboxyl groups of the polyester-dicarboxylic acid. Curing of these epoxide resin mixtures gives flexible moulding materials which are distinguished by high tear propagation resistance.

REFERENCES:
patent: 3523143 (1970-08-01), Kwong
patent: 3576903 (1971-04-01), Groff
patent: 3642674 (1972-02-01), Schmid
patent: 3642938 (1972-02-01), Schmid
patent: 3655817 (1972-04-01), Lohse
patent: 3739041 (1973-06-01), Schmid
patent: 3816365 (1974-06-01), Schmid

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