PROCESS OF CONTINUOUS LARGE-SCALE PREPARATION OF VINYL AROMATIC (CO)POLYMERS CONTAINING VINYL AROMATIC MONOMER AND RUBBER

摘要

A process for the continuous mass production of vinylaromatic (co) polymers containing vinylaromatic monomer and rubber and optionally comonomer from the group consisting of acrylonitrile, methacrylonitrile, acrylic acid, methacrylic acid and an alkyl or cycloaclyl ester of up to 8 carbon atoms in the alkyl of these acids, wherein a) is mixed in at least one heated mixer at a temperature not exceeding 100 [deg.] C. vinylaromatic monomer, rubber and catalyst in an amount not exceeding 0.1% by weight of the monomers, optional comonomer and inert solvent in an amount not exceeding 20% by weight of the mixture as a whole; co) polymers formed from these monomers, in an amount not exceeding 10% by weight of the mixture as a whole, b) the solution obtained in step a) is introduced into the upper part of a vertical, reciprocating piston flow reactor, which is divided into three of themselves The following zones are maintained at a different temperature of 100 to 150 ° C, with a flow rate of 10 ° C