C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
400/3036
C08L 51/04 (2006.01) C08F 279/02 (2006.01) C08L 53/00 (2006.01)
Patent
CA 1043932
ABSTRACT OF THE DISCLOSURE The present invention relates to a polymeric polyblend having high melt flow and ductility comprising, based on the total weight of the polymeric components, about 55 to 98 weight percent of a first monoalkenyl aromatic polymer, comprising at least one monoalkenyl aromatic monomer of the formula Image where Ar is selected from the group consisting of phenyl, halo- phenyl alkylphenyl, alkylhalophenyl and mixtures thereof and X is selected from the group consisting of hydrogen, halogen and an alkyl radical of less than three carbon atoms and mixtures thereof, about 1 to 15 percent by weight of a diene rubber moiety dispersed as grafted diene rubber particles, the rubber particles being grafted with and having occluded a second monovinylidene aromatic polymer, wherein the grafted diene rubber particles have grafted and occluded polymer present in an amount of 0.5 to 4 parts to 1 part of rubber, are crosslinked having a swelling index of 5-25 and a weight average particle size diameter of 0.1 to 20.0 microns, and about 1 to 30 percent by weight of a block copolymer comprising a first block of from about 55-90 weight percent of a monoalkenyl aromatic monomer and a second block of from about 10 to 45 weight percent of a diene monomer.
213330
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