초록

Epoxy resins and vinyl ester resins are prepared which contain a polymeric domain containing mesogenic or rigid rodlike moieties.

대표청구항 ▼

A thermosettable vinyl ester composition containing a polymeric domain containing mesogenic or rigid rodlike moieties which composition is prepared by (A) copolymerizing (1) at least one epoxy resin having an average of more than one vicinal epoxy group per molecule wherein from about 0.01 to about

A thermosettable vinyl ester composition containing a polymeric domain containing mesogenic or rigid rodlike moieties which composition is prepared by (A) copolymerizing (1) at least one epoxy resin having an average of more than one vicinal epoxy group per molecule wherein from about 0.01 to about 10 mole percent of the epoxide groups have been reacted with at least one compound containing a group reactive with an epoxide group and a polymerizable ethylenically unsaturated group and (2) at least one polymerizable ethylenically unsaturated monomer, at least one of which contains at least one mesogenic or rigid rodlike moiety; wherein component (1) is present in an amount of from about 50 to about 99 percent by weight based upon the combined weight of components (1) and (2) and component (2) is present in an amount of from about 1 to about 50 percent by weight based upon the combined weight of components (1) and (2); and then (B) reacting the resulting copolymer with (3) one or more polymerizable monounsaturated monocarboxylic acids in an amount which provides a ratio of epoxide groups to carboxylic acid groups of from about 0.7:1 to about 1.5:1.