Poly(butylene terephthalate) based molding resins

Details Poly(butylene terephthalate) based molding resins Poly(butylene terephthalate) based molding resins

1984-05-07

1985-08-20

Griffin, Ronald W.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Processes of preparing a desired or intentional composition...

524194, 524601, 524605, C08K 513, C08K 524, C08L 6702

Patent

active

045365270

ABSTRACT:
There is provided an improved molding resin capable of being molded into an article exhibiting reduced tendency to corrode a copper surface when the molded resin and the copper surface are placed in spaced relationship in a common unventilated atmosphere at elevated temperatures, as measured by the Bell Telephone Laboratories Copper Corrosion Test at temperatures within the range of from 150.degree. to 175.degree. C., wherein the molding resin comprises the combination of (a) a butyleneterephthalate polyester comprising a brominated copolyester as a polymeric flame retardant comprising aromatic halogen groups in a flame retardant amount, and (b) an alkylhydroxyphenylalkanoyl-hydrazine in an amount that is within the range of from 0.05 to 0.3% by weight.

REFERENCES:
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patent: 4044073 (1977-08-01), Baron et al.
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patent: 4065635 (1977-12-01), Kiss
patent: 4066610 (1978-01-01), Kiss et al.
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Ciba-Giegy's Product Bulletin "Irganox.RTM. to MD-1024" (undated).

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