Epoxy resin composition

Details Epoxy resin composition Epoxy resin composition

1986-03-25

1987-07-21

Nielsen, Earl

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

Synthetic resins

Processes of preparing a desired or intentional composition...

525438, 525524, C08G 5906, C08G 5942, C08L 6302

Patent

active

046819045

ABSTRACT:
A novel epoxy resin composition is prepared by first mixing 100 parts by weight of an epoxy resin having an epoxy equivalent of no more than 200 with 0.5-10 parts by weight of a phenoxy resin to form a uniform mixture, then blending the mixture with a curing agent (i.e., a condensation product of a polybasic carboxylic acid and bisphenol A) and an inorganic filler. The epoxy resin composition has a suitable degree of rigidity and softness within the molecular chain without sacrificing its resistance to heat or thermal shock and will not cause precipitation of any portion of the filler in the resin composition. This resin composition is useful in the making of cast insulators employed in electric machines.

REFERENCES:
patent: 2735829 (1956-02-01), Wiles et al.
patent: 3352809 (1967-11-01), Carlyle et al.
patent: 3395118 (1968-07-01), Reinking et al.
patent: 3424707 (1969-01-01), Schaufelberger
patent: 3873637 (1975-03-01), Fujiwara et al.
patent: 4309473 (1982-01-01), Minamisawa et al.
patent: 4591623 (1986-05-01), Nakajima et al.

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