C - Chemistry – Metallurgy – 08 – F
Patent
C - Chemistry, Metallurgy
08
F
C08F 279/04 (2006.01) C08F 285/00 (2006.01)
Patent
CA 2378296
The invention relates to a multi-stage method for producing ABS polymers with a modified resistance to shock, by non-aqueous radical polymerization in the presence of solvents and soluble rubber. The solvent or solvents are only introduced to the process after at least 6 to approximately 30 wt. % 5 of the starting monomer mixture has reacted.
L'invention concerne un procédé en plusieurs opérations permettant la production de polymères ABS à résilience modifiée par polymérisation radicale non aqueuse en présence de solvants et de caoutchouc soluble. Le ou les solvant(s) n'est introduit dans le processus qu'après une conversion d'au moins 6 à environ 30 % en poids du mélange monomère de départ.
Vanhoorne Pierre
Weider Richard
Wingler Frank
Aktiengesellschaft Bayer
Fetherstonhaugh & Co.
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