C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
C08L 9/00 (2006.01) C08F 255/06 (2006.01) C08F 287/00 (2006.01) C08J 9/20 (2006.01) C08L 1/08 (2006.01) C08L 25/02 (2006.01) C08L 53/02 (2006.01)
Patent
CA 2051729
A process for the manufacture of polymer composi- tions containing a polyvinylarene and EPDM rubber, which process comprises: (a) dissolving in at least one vinylarene monomer of from 8 to 20% by weight, and preferably from 9 to 18% by weight, relative to the final composition, of at least one EPDM rubber, optionally mixed with a linear (hydrogenated) conjugated diene-vinylarene block copolymer, said block copolymer having a number average molecular weight in the range of from 10,000 to 1,000,000: (b) prepolymerizing the obtained solution until a polymerization degree of from 0.01 to 25%: (c) suspending the prepolymerized mass into an aqueous medium which contains at least one suspending agent; and (d) suspension polymerizing until substantially com- plete monomer conversion is obtained, optionally in the presence of an expanding agent, and polymer compositions so obtained.
de Koning Gerardus Johannes Maria
Nelissen Laurentius Nicholaas Ida Hubertus
Zijderveld Johannes Maria
de Koning Gerardus Johannes Maria
Nelissen Laurentius Nicholaas Ida Hubertus
Nova Chemicals (international) S.a.
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
Zijderveld Johannes Maria
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