C - Chemistry – Metallurgy – 09 – D
Patent
C - Chemistry, Metallurgy
09
D
31/164, 400/4030
C09D 5/25 (2006.01) C08K 3/34 (2006.01) C08K 7/14 (2006.01) C08L 67/02 (2006.01) H01B 3/30 (2006.01) H01B 3/42 (2006.01)
Patent
CA 1193037
ABSTRACT OF THE DISCLOSURE 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 re- sistance 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 polyetnylene 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.
424758
Celanese Corporation
Smart & Biggar
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