Stock material or miscellaneous articles – Structurally defined web or sheet – Discontinuous or differential coating – impregnation or bond
Patent
1983-12-01
1985-05-21
Kittle, John E.
Stock material or miscellaneous articles
Structurally defined web or sheet
Discontinuous or differential coating, impregnation or bond
174 685, 428209, 428211, 428236, 428249, 428252, 428264, 428273, 428901, H05K 100
Patent
active
045186464
ABSTRACT:
A high voltage arc-resistant laminate for printed circuit boards comprising a substrate and metallic foil bonded on one or both surfaces of the substrate. The substrate includes core sheets of cellulosic paper impregnated with a resin formulation comprising an admixture of resin solids including a major amount of phenolic resins, and minor amount of curing agents for the resins, and face sheets of glass fiber cloth impregnated with a resin formulation consisting substantially entirely of brominated aromatic epoxy resin solids, and minor amount of dicyandiamide curing agent and amine catalyst along with, antimony oxide, thixotropic agent, and pigments. Also disclosed is a process for manufacturing the laminate. A high temperature resistant embodiment is also disclosed in which the core sheet resin is brominated aromatic epoxy instead of phenolic resin.
REFERENCES:
patent: 3499821 (1970-03-01), Zinbarg
patent: 3560328 (1971-02-01), Anderson et al.
patent: 4031313 (1977-06-01), Franz et al.
patent: 4034136 (1977-07-01), Wright et al.
General Electric Company
Kittle John E.
Seidleck James J.
Voss Donald J.
LandOfFree
Printed circuit board laminate with arc-resistance does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Printed circuit board laminate with arc-resistance, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Printed circuit board laminate with arc-resistance will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1538236