Process for preparing an abs graft copolymer

Details Process for preparing an abs graft copolymer Process for preparing an abs graft copolymer

C - Chemistry, Metallurgy

08

F

400/2036

C08F 279/04 (2006.01)

Patent

CA 1113632

ABSTRACT OF THE DISCLOSURE Disclosed is a process for the production of ABS resins comprising the steps of (a) imbibing a stabilized latex of a rubbery polymer with styrene in an amount of about 1.75 to 15 parts by weight per 100 parts of dry latex and with acrylo- nitrile in an amount of about 5 to 15 parts by weight per 100 parts of dry latex; (b) introducing the imbibed latex into a polymerization vessel; (c) introducing into the polymerization vessel a mixture of styrene, acrylonitrile and a free radical initiator; (d) introducing a polymerization activator into the polymerization vessel; (e) polymerizing the styrene and acrylonitrile in the polymerization vessel in the presence of the latex, whereby an ABS graft copolymer is produced; and (f) withdrawing the ABS polymer from the polymerization vessel. -1-

273679

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