Suspension polymerization in an organic medium

Details Suspension polymerization in an organic medium Suspension polymerization in an organic medium

1989-03-06

1990-07-31

Schofer, Joseph L.

Liquid purification or separation

Processes

Separating

B01D 2126

Patent

active

049448889

ABSTRACT:
Inherently tacky infusible pressure-sensitive adhesive microspheres prepared by polymerizing at least one monomer which when polymerized will form a pressure-sensitive adhesive having a glass transition temperature less than about -20.degree. C. in a medium in which the monomer is substantially insoluble and in the presence of a surfactant and a suspension stabilizer which are soluble in the organic medium and substantially insoluble in the monomer under conditions of shear sufficient to form suspended particles of a size less than 200 microns. The formed microspheres are transferred to a volatile organic medium and separated from the medium in which they were formed by a centrifugal separator at a force of at least 2,000 times the force of gravity.

REFERENCES:
patent: 3823145 (1974-07-01), Louvar et al.
patent: 4434061 (1984-02-01), McDowell

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