Tubular reactor with coaxial cylinders and process using...

Details Tubular reactor with coaxial cylinders and process using... Tubular reactor with coaxial cylinders and process using...

2001-12-10

2009-10-13

Phasge, Arun S (Department: 1795)

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

Synthetic resins

Polymerizing in tubular or loop reactor

C526S088000, C422S136000

Reexamination Certificate

active

07601786

ABSTRACT:
A process of preparing a liquid reaction product in a column reactor, which reactor comprises a space between coaxial tubular interior surfaces comprising an inner interior surface and an outer interior surface, comprising the steps, a) feeding the liquid precursor reactant material through an inlet port in the outer interior surface, b) flowing the liquid precursor material through the space between the outer interior surface and the inner interior surface, c) subjecting the liquid precursor material in step (b) to reaction conditions to form the liquid reaction product, d) passing the liquid polymer composition through an outlet port in the outer interior surface, characterised in that the distance of the inner internal surface and the outer interior surface is less than 20 mm and the ratio of the cross-sectional diameter (D′) of the inner interior surface to the cross-sectional diameter (D″) of the outer interior surface is at least 0.8:1. Also claimed is an apparatus suitable for carrying out chemical reactions. Derisably the apparatus and process can be used to make liquid polymer compositions.

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Patent Abstracts of Japan vol. 1996, No. 8, Aug. 30, 1996 for JP 08109208.

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