Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...
Patent
1992-02-21
1992-10-13
Bleutge, John C.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Processes of preparing a desired or intentional composition...
524106, 524191, 524192, 524193, 524228, 524229, 524578, C08K 535
Patent
active
051551519
ABSTRACT:
A thermoplastic 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 .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: ##STR1## or an organometallic colorant containing free metal in an amount of not more than 2,000 ppm, from which a molded article having no or less silver streaks can be produced.
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Hashimoto Kenji
Minematsu Hiroyuki
Takahashi Syuzi
Bleutge John C.
Sumitomo Naugatuck Co. Ltd.
Sweet Mark
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