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...
Patent
1997-03-17
1998-05-26
Mulcahy, Peter D.
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...
524430, 524433, C08K 511
Patent
active
057565708
ABSTRACT:
An electrical grade polyvinyl chloride resin composition suitable for use as an electrical insulation material and avoiding the use of lead based stabilizers having a high volume resistivity when exposed to or immersed in water and a high resistance to deterioration when heated at temperatures above 100.degree. C. is disclosed. The composition is composed of an electrical grade polyvinyl chloride resin, filler, carboxylic acid ester plasticizer, at least one heat stabilizer from which cadmium and lead are substantially excluded, and as a wet resistivity agent protecting against the effective of water, a defined amount of at least one alkaline earth metal oxide or hydroxide.
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patent: 4447569 (1984-05-01), Brecker et al.
patent: 5326638 (1994-07-01), Mottine, Jr. et al.
Fisch Michael H.
Hoch Samuel
Mulcahy Peter D.
Witco Corporation
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