Epoxy resins with high thermal stability and toughness

摘要

Epoxy resin compositions contain (i) a potyepoxide resin; (ii) a benzofuran diol component, a benzofuran di-epoxide component, or a mixture thereof; and (iii) a curing agent, which upon curing, provides a cured resin exhibiting improved chemical and physical characteristics. The epoxy resin composition may also contain a toughening agent to further enhance the cured resin's physical characteristics.

主权项

1. An epoxy resin composition comprising:
(a) a polyepoxide resin represented by the compound of formula (VI)where A is a group having the formula (IV)where Z is hydrogen, methyl, or phenyl; and A1 represents an organic group required to complete an aromatic residue,a is an integer having a value of 1-100,b is an integer having a value of 0-100,each R is independently a divalent hydrocarbyl group having from 1 to 12 carbon atoms,each X is independently hydrogen or a hydrocarbyl or hydrocarbyloxy group having from 1 to 12 carbon atoms or a halogen, andeach t is independently 0 or 1; and
(b) a curing agent.