Heat stable thermoplastic resin composition

C - Chemistry – Metallurgy – 08 – K

Patent

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C08K 5/20 (2006.01) C08K 5/00 (2006.01) C08K 5/16 (2006.01) C08L 25/16 (2006.01) C09B 67/54 (2006.01)

Patent

CA 1317390

- 1 - Abstract: The present invention is directed to a thermo- plastic resin composition having improved heat stability which comprises a thermoplastic resin which contains at least 5% by weight of an .alpha.-alkyl-substituted aromatic copolymer comprising an .alpha.-alkyl-substituted aromatic vinyl compound and at least one other comonomer copolymerizable therewith, wherein the composition contains a metal- deactivating agent which has a molecular weight of not more than 2,000 and at least one group of the formula: Image (I) or an organometallic colorant containing a free metal in an amount of not more than 2,000 ppm, from which a molded article having few or no silver streaks can be produced.

549138

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