Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1992-09-04
1993-08-31
Buttner, David J.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
525146, C08L 6900, C08L 3312
Patent
active
052410056
ABSTRACT:
Heat-resistant resin compositions with an excellent pearly luster of this invention consist essentially of polycarbonates prepared from bisphenol A or its derivatives of the following general formula (I) ##STR1## in which R is hydrogen, a halogen, or a lower alkyl group and methyl methacrylate-.alpha.-methylstyrene copolymers with a weight average molecular weight of 30,000 to 200,000 and are useful for molding industrial articles requiring heat resistance.
REFERENCES:
patent: 4045514 (1977-08-01), Iwahashi et al.
patent: 4172103 (1979-10-01), Serini et al.
patent: 4774289 (1988-09-01), Kress
patent: 4950716 (1990-08-01), Fischer
Polymer Preprints, Japan (English Edition), vol. 39, No. 1, pp. 5-7, E35 and 47. (SPSJ 39th Annual Meeting, Kyoto, Japan, May 29-31, 1990).
Kimura Masao
Yamamoto Toshihiro
Buttner David J.
Nippon Steel Chemical Co. Ltd.
Nippon Steel Corporation
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