Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...
Patent
1983-05-11
1984-09-04
Griffin, Ronald W.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Processes of preparing a desired or intentional composition...
524601, 524605, C08K 513, C08K 524, C08L 6702
Patent
active
044698348
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 poly(butylene terephthalate) based polymer and 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 0.6% by weight, based on the weight of the molding resin, and less than 0.8% by weight based on the polymer.
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Ciba-Geigy's Product Bulletin "Irganox.RTM. MD-1024" (undated).
Shearer Wilfred L.
Sinker Stephen M.
Wolf Richard A.
Celanese Corporation
Griffin Ronald W.
Macleod Roderick B.
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