Low dielectric constant polyurethane filleting composition

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – At least one aryl ring which is part of a fused or bridged...

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524404, 524590, 524789, 524791, 524871, 524873, 528 85, G08J 510, C08K 302, C08K 338, C08K 555, C08L 7504

Patent

active

052217833

ABSTRACT:
A polyurethane filleting composition which has production of electronic assemblies. The filleting composition is a self-curing polyurethane mixture which has a low dielectric constant, good thermal conductivity, and relatively long working life. The composition is a four part mixture containing:

REFERENCES:
patent: 3700597 (1972-10-01), Kastenbein et al.
patent: 4075151 (1978-02-01), Olstowski
patent: 4738999 (1988-04-01), Blenner et al.
patent: 4791187 (1988-12-01), Suling et al.

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