Continuous process for the preparation of ABS type polyblends

Details Continuous process for the preparation of ABS type polyblends Continuous process for the preparation of ABS type polyblends

1974-04-26

1976-01-06

Tillman, Murray

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260 4595, 260879, 260880R, C08L 902, C08L 906, C08L 5106, C08L 5502

Patent

active

039313565

ABSTRACT:
This invention relates to a continuous process for the production of ABS type polyblends comprising the polymeriztion of a monomer composition comprising monoalkenyl aromatic and alkenyl nitrile monomers in a single reaction zone forming a matrix copolymer dissolved in said monomers as a liquid phase; removing said liquid phase from said reaction zone and dispersing a first and second grafted diene rubber in said liquid phase followed by separating said matrix copolymer and said grafted diene rubbers from said liquid phase forming an ABS polyblend having a bimodal rubber particle size distribution and a matrix copolymer having a uniform monomer composition and molecular weight.

REFERENCES:
patent: 3509238 (1970-04-01), Aubrey et al.
patent: 3511895 (1970-05-01), Kvdonieus et al.
patent: 3513145 (1970-05-01), Crawford
patent: 3576910 (1971-04-01), Jastrzebski
patent: 3658946 (1972-04-01), Bronstert et al.
patent: 3660535 (1972-05-01), Finch et al.
patent: 3700622 (1972-10-01), Terenzi

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