Electrical laminate

Details Electrical laminate Electrical laminate

1980-04-23

1982-06-22

Bell, James J.

Stock material or miscellaneous articles

Structurally defined web or sheet

Discontinuous or differential coating, impregnation or bond

156324, 427302, 428290, 428507, 428514, 428901, 525 30, 525518, 525519, 523208, B32B 700

Patent

active

043362974

ABSTRACT:
An electrical laminate comprising layers of a polyester resin-impregnated fibrous cellulosic substrate is disclosed. The substrate is preimpregnated with a nitrogen-containing composition having (a) an N-methylol or N-lower alkoxymethyl group attached to said nitrogen atom, and (b) an unsaturated group capable of copolymerizing with a cross-linking monomer present in the polyester resin.

REFERENCES:
patent: 2632744 (1953-03-01), Howard
patent: 3897580 (1975-07-01), Nahtomi
patent: 4221821 (1980-08-01), Hammer et al.

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