Process for preparing epoxy resins having improved physical prop

Details Process for preparing epoxy resins having improved physical prop Process for preparing epoxy resins having improved physical prop

1981-12-14

1983-10-18

Page, Thurman K.

Stock material or miscellaneous articles

Composite

Of epoxy ether

427 58, 427386, 4273898, 428417, B32B 2738, B32B 1710

Patent

active

044105967

ABSTRACT:
Epoxy resins having improved properties are prepared by reacting an epoxy resin with a dihydric phenol in the presence of a sufficient quantity of a phosphonium catalyst such that the product resulting from reacting a mixture of the catalyst, epoxy resin and dihydric phenol has a % epoxide difference from the theoretical percent epoxide of from about 0.5 to about 4.0.

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