Epoxy resins with cyclohexenenorbornene moieties

Details Epoxy resins with cyclohexenenorbornene moieties Epoxy resins with cyclohexenenorbornene moieties

1993-03-10

1994-02-08

Sellers, Robert E.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

525481, 525523, 525530, C08G 5904

Patent

active

052849295

ABSTRACT:
An epoxy resin is provided which can be described by the formula ##STR1## in which Ar is an aromatic moiety, L is a divalent cyclohexanenorbornane linking moiety, L' is a divalent cycloaliphatic moiety, Gly is a glycidyl ether group, and each of m and n is a number within the range of 0 to about 10. Such epoxy resins include the product of glycidation of the product of the addition reaction of a phenol and a cyclohexenenorbornene compound such as 5-(3-cyclohexen-1-yl)bicyclo[2.2.1]hept-2-ene. The resulting epoxy resins have low melt viscosity and low water absorbance in the cured state and are useful as the resinous component of high-performance electrical laminating and encapsulation formulations.

REFERENCES:
patent: 3410825 (1968-11-01), Coover, Jr. et al.
patent: 3536734 (1970-10-01), Vegter et al.
patent: 4663400 (1987-05-01), Wang et al.
patent: 4764571 (1988-08-01), Namba et al.
patent: 4855385 (1989-08-01), Cavitt
patent: 5095082 (1992-03-01), Kelsey
patent: 5151471 (1992-09-01), Qureshi et al.

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