Heterogeneous polymerization in carbon dioxide

Details Heterogeneous polymerization in carbon dioxide Heterogeneous polymerization in carbon dioxide

1995-01-25

1996-04-09

Schofer, Joseph L.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526194, 526346, 526942, 526 89, 526271, 5263522, 526344, 526245, 526251, 52632907, 428 363, 428626, 425522, 526942, 526 89, 526271, 5263522, 526344, 526245, 526251, 5263797, C08F 200

Patent

active

055063179

ABSTRACT:
The heterogeneous polymerization of water-insoluble polymer in CO.sub.2 is disclosed. The method comprises providing a heterogeneous reaction mixture comprising CO.sub.2, a monomer, and a surfactant, then polymerizing the monomer to form a water-insoluble polymer.

REFERENCES:
patent: 3522228 (1970-07-01), Fukui et al.
patent: 4748220 (1988-05-01), Hartmann et al.
patent: 4933404 (1990-06-01), Beckmann et al.
DeSimone et al.; Synthesis of Fluoropolymers in Supercritical Carbon Dioxide; Science 257; 945-947; (1992).
DeSimone et al.; Dispersion Polymerizations in Supercritical Carbon Dioxide; Science 265; 356-359 (1994).
K. A. Shaffer and J. M. DeSimone; Chain Polymerizations in Inert Near-- and Supercritical Fluids; TRIP 3 No. 5; 146-153 (May 1995).

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