Interpolymers of bicyclic amide acetals/dicarboxylic acid anhydrides/polyepoxides

Claim 2

The process comprising the interpolymerization of a bicyclic amide acetal, a dicarboxylic acid anhydride and a polyepoxide in the temperature range of from 80° C. to about 200° C. at a pressure in the range of from about ambient pressure to about 50 atmospheres.

Claim 3

The process of claim 1 wherein the bicyclic amide acetal is present in from 1 to 99% by weight based on the weight of polyepoxide and the equivalent weight of dicarboxylic acid anhydride with respect to the combined equivalents of bicyclic amide acetal and polyepoxide is in the range of 1:0.5 to 1:2.

Claim 4

The process of claim 2 wherein the bicyclic amide acetal is one of Formula I, II or III. ##STR3## wherein R, R', R" and R"' independently represent hydrogen, an alkyl group having from 1 to 20 carbon atoms, an aryl group having from 6 to 12 carbon atoms, an alkaryl group having from 7 to 20 carbon atoms, an alkyl or aryl ether group having from 1 to 20 carbon atoms and R"" represents an alkylene or arylene ether group having from 1 to 20 carbon atoms, an arylene or an alkarylene group having from 6 to 20 carbon atoms.

Claim 5

The process of claim 3 wherein the anhydride of a discarboxylic acid is selected from the group consisting of maleic anhydride, succinic anhydride, glutaric anhydride, phthalic anhydride, tetrahydrophthalic anhydride, hexahydrophthalic anhydride, norbornene-2,2-dicarboxylic anhydride, the maleic anhydride adduct of cyclopentadiene, methyl cyclopentadiene anhydride, alkyl and alkylene succinic anhydrides, citraconic anhydride and mixtures thereof.

Claim 6

The process of claim 4 wherein the polyepoxide is a compound containing more than one group of the formula ##STR4##

Claim 7

The process of claim 5 wherein the bicyclic amide acetal is one of Formula I in which R, R' and R"' are hydrogen and R" is methyl, the polyepoxide is the liquid diglycidyl ether of Bisphenol-A and the dicarboxylic acid anhydride is 5-norbornene-2,2-dicarboxylic anhydride.

Claim 8

The process of claim 5 wherein the bicyclic amide acetal is one of Formula I in which R, R' and R"' are hydrogen and R is methyl, the polypoxide is the liquid diglycidyl ether of Bisphenol-A and the dicarboxylic anhydride is a mixture of phthalic anhydride and hexahydrophthalic anhydride.

Claim 9

The polymer produced by the process of claim 1.