Impact resistant thermoplastic molding compositions

Details Impact resistant thermoplastic molding compositions Impact resistant thermoplastic molding compositions

1976-01-05

1978-08-01

De Benedictis, Sr., Thomas

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260 297E, 260 297H, 260 297T, 260 297UP, 260 297W, 260880R, 260887, 260892, 260898, 260901, C08L 5104

Patent

active

041043286

ABSTRACT:
Impact-resistant thermoplastic molding compositions having a hard component comprising a styrene/acrylonitrile copolymer and a soft component comprising a graft copolymer of styrene and acrylonitrile on a rubbery polymer containing butadiene. The rubbery polymer serving as base for the graft copolymer is produced by polymerization or the monomer of monomers forming said polymer in aqueous emulsion and in the presence of a small amount of an alkanol of from 1 to 4 carbon atoms. The compositions have improved color and color stability and may be processed by conventional methods to form shaped articles.

REFERENCES:
patent: 3280219 (1966-10-01), Siebel et al.
patent: 3328377 (1967-06-01), Cooper
patent: 3449471 (1969-06-01), Weitzel et al.
patent: 3880951 (1975-04-01), Ooya et al.
patent: 3886231 (1975-05-01), Nield
Billmeyer, Textbook of Poly. Sci. (Interscience, 1962), pp. 346-347.

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