The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 24, 1995
Filed:
Feb. 21, 1990
Cao Chu-Ba, Plano, TX (US);
General Cable Industries, Inc., Highland Heights, KY (US);
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.