Curable epoxy resin compositions
AssigneeGeneral Electric Company
InventorCharles J. Stark, Jr.
Life of this patent
Estimating the term…
Abstract
Diesters of catechol and ring substituted catechol exhibit enhanced characteristics as accelerators in the cure of epoxy resins when utilized in combination with a cure initiator, such as an oxygen titanate or zirconate.
Claims39
A composition of matter comprising an epoxy resin, a cure initiator, and an accelerator of the general formula ##STR8## where Q is ##STR9## and R is independently selected from the class consisting of monovalent alkyl, aryl, alkaryl, aralkyl, vinyl, and allyl radicals;
- A is independently selected from the class consisting of monovalent alkyl, alkoxy, halogen and nitro radicals, where A can be ortho-, meta-, or para- to either oxygen atom, and m is an integer from 0 to 2, inclusive.
A method for curing an epoxy resin which comprises (1) forming a mixture of ingredients comprising an epoxy resin, a cure initiator, and an accelerator of the general formula ##STR26## where Q is ##STR27## and R is independently selected from the class consisting of monovalent alkyl, aryl, alkaryl, aralkyl, vinyl, and allyl radicals;
- A is independently selected from the class consisting of monovalent alkyl, alkoxy, halogen and nitro radicals, where A can be ortho-, meta-, or para- to either oxygen atom, and m is an integer from 0 to 2, inclusive, (2) heating the aforesaid mixture of ingredients at a temperature and for a time sufficient to effect curing of said epoxy resin.
A method for curing an epoxy resin which comprises (1) forming a mixture of ingredients comprising an epoxy resin, a cure initiator, and an accelerator of the formula ##STR28## and (2) heating the aforesaid mixture of ingredients at a temperature and for a time sufficient to effect curing of said epoxy resin.
A method of curing an epoxy resin which comprises (1) forming a mixture of ingredients comprising an epoxy resin, a cure initiator, and an accelerator of the formula ##STR29## and (2) heating the aforesaid mixture of ingredients at a temperature and for a time sufficient to effect curing of said epoxy resin.
A method for curing an epoxy resin which comprises (1) forming a mixture of ingredients comprising an epoxy resin, a cure initiator, and an accelerator of the formula ##STR30## and (2) heating the aforesaid mixture of ingredients at a temperature and for a time sufficient to effect curing to said epoxy resin.
A method for curing an epoxy resin which comprises (1) forming a mixture of ingredients comprising an epoxy resin, a cure initiator, and an accelerator of the formula ##STR31## and (2) heating the aforesaid mixture of ingredients at a temperature and for a time sufficient to effect curing of said epoxy resin.
Dependencies are inferred from the claim text.