Stock material or miscellaneous articles – Coated or structually defined flake – particle – cell – strand,... – Rod – strand – filament or fiber
Patent
1990-02-21
1995-10-24
Ryan, Patrick J.
Stock material or miscellaneous articles
Coated or structually defined flake, particle, cell, strand,...
Rod, strand, filament or fiber
428379, 174110V, 174110SR, 174120SR, B32B 2700, D02G 300
Patent
active
054608856
ABSTRACT:
A high service temperature electrical wiring product comprising a jacketed polyvinyl chloride insulation incorporating a relatively volatile plasticizing system and manufacturing process therefor. The wiring product comprises an electrical conductor and an insulation covering on the conductor having a UL-83 service temperature classification of at least 90.degree. C. The insulation is formed of a primary coating of a polyvinyl chloride resin which contains a relatively volatile plasticizing system for the resin, specifically, one having a vapor pressure at 200.degree. C. of at least 0.3 torr. A jacket surrounding the primary insulation coating is formed of a poly (alkylene terephthalate) having a melt temperature in excess of that of the primary insulation coating. A specific plasticizer system is an organic acid ester plasticizing system in which the predominant ester component is a di (R, R') phthalate ester in which R and R' are each independently an alkyl group and which together contain a total of no more than 20 carbon atoms. Such a system comprises a mixture of a predominant dialkyl phthalate, in which each alkyl group contains from 8-10 carbon atoms, and a minor amount of a dibasic aliphatic acid ester.
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Bias, D. C. et al., "Polyvinyl Chloride--The Function of Plasticizers and Fillers in High Performance Electrical Compounds", Division of Organic Coatings and Plastic Chemistry, Nov. 30-Dec. 5, 1975, Mexico City.
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General Cable Industries, Inc.
Gray J. M.
Ryan Patrick J.
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