High maximum service temperature low cure temperature non-linear

Details High maximum service temperature low cure temperature non-linear High maximum service temperature low cure temperature non-linear

1982-04-09

1984-01-24

Dixon, Jr., William R.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Including a second component containing structurally defined...

29596, 29598, 310 45, 427104, 427116, 428363, 428383, B32B 516, B05D 112, H02K 1500

Patent

active

044277407

ABSTRACT:
An insulated electrical member adapted for high voltage use is made by (1) covering a conducting member having a porous layer disposed thereon with a non-linear stress grading composition comprising cycloaliphatic epoxy resin, non-linear silicon carbide and an effective amount of curing agent, (2) curing the non-linear stress grading composition at up to about 130.degree. C., (3) impregnating the porous layer with a reactive insulating resin composition containing polar components, such that the resin composition contacts the non-linear stress grading composition, and (4) heating the covered, impregnated electrical member to cure the insulating resin composition, where the non-linear stress grading composition after insulating resin cure is characterized as remaining adherent to the member.

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patent: 4336302 (1982-06-01), Ihlen
patent: 4381327 (1983-04-01), Briere
Stock, A. J., "Conductive Coatings Compared" 1971, EDN Bulletin, Cahners Publications, May 1, 1971, pp. 1-5.

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