Poly(alkenyl substituted aromatic) and elastomer containing polymer compositions and process for their preparation.

Laurent N.I.H. Nelissen (Inventor), G.J.M. de Koning (Inventor), Joop M. Zijderveld (Inventor)

Research output: PatentPatent publication

Abstract

Poly(alkenyl substituted aromatic) and elastomer containing polymer compositions, obtainable by a process comprising:
(a) conversion of polyphenylene ether or a structurally 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-8, 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.
Original languageEnglish
Patent numberEPO0404261A2
Priority date23/06/89
Filing date19/06/90
Publication statusPublished - 19 Jun 1990

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