C - Chemistry – Metallurgy – 08 – F
Patent
C - Chemistry, Metallurgy
08
F
C08F 279/02 (2006.01) C07D 207/46 (2006.01) C07D 295/24 (2006.01) C07D 303/24 (2006.01) C07D 405/12 (2006.01) C08F 279/04 (2006.01)
Patent
CA 2245686
The present invention is a free radical bulk polymerization process for producing a rubber modified polymer from a vinyl aromatic monomer comprising: polymerizing the vinyl aromatic monomer in the presence of a dime rubber having at least one stable free radical group, under polymerization conditions such that a vinyl aromatic-dime block and/or graft copolymer rubber is formed.
La présente invention se rapporte à un procédé de polymérisation en masse radicalaire visant à produire un polymère modifié par le caoutchouc à partir d'un monomère aromatique vinylique. Ce procédé consiste à polymériser le monomère aromatique vinylique en présence d'un caoutchouc diénique possédant au moins un groupe stable de radicaux libres, ce procédé s'effectuant dans des conditions de polymérisation qui permettent d'obtenir un caoutchouc à copolymère bloc et/ou greffé aromatique diénique vinylique.
Li Irene Q.
Priddy Duane B.
Smart & Biggar
Styron Europe Gmbh
The Dow Chemical Company
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