C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
400/3040, 400/48
C08L 53/00 (2006.01) C08F 255/06 (2006.01) C08F 283/08 (2006.01) C08F 287/00 (2006.01) C08L 9/00 (2006.01) C08L 71/12 (2006.01)
Patent
CA 2019433
T 1148 A B S T R A C T POLY(ALKENYL SUBSTITUTED AROMATIC) AND ELASTOMER CONTAINING POLYMER COMPOSITIONS AND PROCESS FOR THEIR PREPARATION Poly(alkenyl substituted aromatic) and elastomer containing polymer compositions, obtainable by a process comprising: (a) conversion of polyphenylene ether or a structur- ally related polymer thereof with an acid halide, an acid anhydride or ketene, in at least one alkenyl substituted aromatic monomer; (b) dissolution of at least one EPDM rubber and an optionally partially hydrogenated diblock copolymer A-B, optionally mixed with minor amounts of triblock copolymers ABA, wherein A represents a poly(alkenyl aromatic) block and B represents an optionally, partially hydrogenated poly conjugated diene block: (c) prepolymerization of the obtained mixture until a polymerization degree of from 5 to 20%; (d) suspending the prepolymerized mass into an aqueous medium; (e) polymerization by thermal initiation or by initiation by means of at least one free radical initiator, optionally in the presence of an expanding agent; and a process for the preparation of such polymer compositions. ML8.T1148FF
de Koning Gerardus J. M.
Nelissen Laurentius N. I. H.
Zijderveld Johannes M.
Shell Internationale Research Maatschappij B.v.
Swabey Ogilvy Renault
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