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:
Dec. 20, 1983
Filed:
Mar. 30, 1982
Tsuneyoshi Okada, Fuji, JP;
Celanese Corporation, New York, NY (US);
Abstract
In an article molded from a non-burning, non-dripping filled polyester composition having a high level of arc resistance and tracking resistance, decay in the arc resistance with time is substantially decreased or prevented by incorporating a minor but critical amount of polyethylene terephthalate. Typical compositions comprise (a) approximately 30 to 60 percent by weight, based on the composition, of a mixture of polyethylene terephthalate and polybutylene terephthalate wherein polyethylene terephthalate comprises approximately 3 to 20 percent by weight; (b) approximately 30 to 60 percent by weight of the composition of a mixture of fiber glass and talc wherein talc comprises approximately 15 to 35 percent by weight of the composition; and (c) an effective amount, up to 20 percent by weight of the composition of a flame retardant additive or a mixture thereof. Typical compositions possess superior electrical properties, comparable to those of thermosetting molding resins.