| 摘要 |
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 polyvi- nyl chloride resin, filler, carboxylic acid ester plasticizer, at least one heat stabilizer from which cadmium and lead are substan- tially 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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