Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1990-07-03
1993-04-20
Seidleck, James J.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
525 77, 525 78, 525 85, 525205, 525238, 525241, C08L 2512, C08L 3348, C08L 3320, C08L 3324
Patent
active
052044068
ABSTRACT:
Disclosed is an impact-resistant thermoplastic resin composition comprising (a) a graft copolymer (II) prepared by polymerizing a monomer or monomer mixture predominantly comprised of methyl methacrylate and/or styrene in the presence of an agglomerated rubber copolymer (I') latex, and (b) bent-resistant rigid thermoplastic resin (III) comprised of .alpha.-methylstyrene or a maleimide compound. The agglomerated rubber copolymer (I') is prepared by emulsion-polymerizing an alkyl acrylate/1,3-butadiene mixture, and then agglomerating the resulting rubbery copolymer. The agglomeration is effected by adding (a) an acid group-containing copolymer prepared by emulsion polymerizing an alkyl methacrylate/unsaturated monomer mixture, and/or (b) an oxy acid salt selected from alkali metal, alkaline earth metal, zinc, nickel and aluminum salts of oxy acids having as the center element an element selected from elements belonging to the second and third periods of groups IIIA through VIA of the Periodic Table.
REFERENCES:
patent: 4556692 (1985-12-01), Kishida et al.
Translation of forestated Japan 61-179252.
Translation of forestated Japan 61-233040.
Fujii Seizo
Toyooka Yutaka
Clark W. R. H.
Mitsubishi Rayon Company Ltd.
Seidleck James J.
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