Fluid casting composition containing low expansion glass filler

Details Fluid casting composition containing low expansion glass filler Fluid casting composition containing low expansion glass filler

1976-03-30

1977-07-26

Jacobs, Lewis T.

Electricity: conductors and insulators

Insulators

Through wall or plate

106 54, 174137B, 252 635, 252 64, 260 37EP, 260 37SB, 260 38, 260 40R, H01B 1726, C08L 6300

Patent

active

040384918

ABSTRACT:
A fluid, filled, resinous casting composition, having a viscosity below about 20,000 cp. at 100.degree. C, is made from liquid resin, resin curing agent, and as high as 85 weight percent of a glassy filler comprising about 50 to about 60 weight percent of SiO.sub.2, about 12 to about 22 weight percent of Al.sub.2 O.sub.3, about 5 to about 15 weight percent of B.sub.2 O.sub.3, about 4 to about 14 weight percent of MgO and about 2.5 to about 12.5 weight percent of CaO.

REFERENCES:
patent: 3183104 (1965-05-01), Thomas
patent: 3433893 (1969-03-01), Hofmann et al.
patent: 3557576 (1971-01-01), Baum

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