Printed circuit board with increased arc track resistance

Details Printed circuit board with increased arc track resistance Printed circuit board with increased arc track resistance

1977-11-14

1979-11-13

Smith, Jr., David

Electricity: electrical systems and devices

Miscellaneous

174 52PE, H05K 104

Patent

active

041745310

ABSTRACT:
This invention pertains to increasing the arc track resistance of printed circuit boards by applying an acrylic resin to the printed circuit board wherein the acrylic resin is a polymer having the recurring unit: ##STR1## wherein x of each unit is independently selected from integers of 0 to 15 and each R.sub.1, R.sub.2, R.sub.3, R.sub.4 and R.sub.5 is independently selected from the group consisting of H, --CH.sub.3 and --C.sub.2 H.sub.5.

REFERENCES:
patent: 3628999 (1971-12-01), Schneble, Jr.
patent: 4051550 (1977-09-01), Seno et al.
Quayle et al., "Experimental Encapsulation Technique", Electronic Design, Jan. 1955, pp. 46-47.
Halpern, "Modern Insulation Concepts", RCA Engineer, vol. 5, No. 1, Jun.-Jul. 1959, pp. 8-10.
Ernst et al., "Potting with Vinyl", Electronic Design, May 27, 1959, pp. 28, 30, 31.

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