Continuous preparation of polymers

Details Continuous preparation of polymers Continuous preparation of polymers

1996-07-01

1998-03-10

Weber, Thomas R.

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

Synthetic resins

Polymerizing in tubular or loop reactor

526 68, 526 88, 526347, 5263472, C08F 202

Patent

active

057262586

ABSTRACT:
A process for the continuous preparation of polymers from reaction components, in particular of copolymers of styrene and acrylonitrile, by bulk or solution polymerization, where the reaction components are passed through the tubes of a recycle reactor, the recycle reactor has at least one tube bundle reactor with straight tubes around which a liquid heat-transfer medium flows, and each tube bundle reactor consists of at least two shell and tube heat exchangers which are connected together by at least one intermediate mixing section. Moreover the volume of the shell and tube heat exchangers is at least 50% of the total volume of the arrangement. The intermediate mixing sections consist of tubes with static mixing elements, around which tubes a heat-transfer medium flows.

REFERENCES:
patent: 4061848 (1977-12-01), Sistig et al.
patent: 4501865 (1985-02-01), Koenig et al.
Ullmann's Encyclopedia, fifth vo. A 21.
Ullmanns Encyklopadie der technischen Chem, Band 19.
Influence of Segregation of Molecular Weight . . . , I & E C Fundamentals, vol. 5, No. 3, Aug. 1966.

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