Continuous mass polymerization process for making styrene copoly

Details Continuous mass polymerization process for making styrene copoly Continuous mass polymerization process for making styrene copoly

1991-08-06

1993-03-16

Teskin, Fred

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymerizing in tubular or loop reactor

526 65, 526 67, 526 68, 526 82, 526 84, 526 87, 526 88, 52631845, 5263186, C08F 202, C08F22006

Patent

active

051945258

ABSTRACT:
A process for producing a styrenic copolymer for injection molding or extrusion molding by continuous mass polymerization of a styrenic monomer with a polymerizable unsaturated fatty acid, charcterized by using a polymerization apparatus comprising a circulation polymerization line (I) in which a tubular reactor with plural mixing elements fixed therein is incorporated, said mixing elements having no mobile parts, and a second non-circulation polymerization line (II) provided in succession to said circulation polymerization line (I), in which a tubular reactor with plural mixing elements fixed therein is incorporated, said mixing elements having no mobile parts; and supplementing the polymerizable unsaturated fatty acid to at least two spots of the second non-circulation polymerization line (II).

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patent: 4948847 (1990-08-01), Morita et al.
Polymer Processes, C. E. Schildknecht (ed.), Interscience, N.Y., 33, 37 (1956).

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