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

C - Chemistry, Metallurgy

08

L

400/3035

C08L 55/02 (2006.01) C08L 25/12 (2006.01)

Patent

CA 1055190

APPLICATION FOR LETTERS PATENT FOR A CONTINUOUS PROCESS FOR THE PREPARATION OF ABS TYPE POLYBLENDS ABSTRACT OF THE DISCLOSURE This invention relates to a continuous process for the production of ABS type polyblends comprising the polymer- ization of a monomer composition comprising monoalkenyl aro- matic 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 co- polymer and said grafted diene rubbers from said liquid phase forming an ABS polyblend having a bimodal rubber part- icle size distribution and a matrix copolymer having a uni- form monomer composition and molecular weight.

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