Precipitation polymerization process

Details Precipitation polymerization process Precipitation polymerization process

1991-05-06

1992-07-14

Schofer, Joseph L.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526264, C08F 438, C08F 2610, C08F 2612

Patent

active

051303884

ABSTRACT:
This invention relates to the polymerization of a monomer capable of forming a precipitate of polymerized particles which comprises reacting in the liquid phase said monomer in the presence of a high temperature, free radical initiator at a temperature within a critical range of between about 110.degree. and 150.degree. C. to produce a particulate polymeric product having a glass transition temperature. (Tg) in excess of the temperature at which polymerization is effected and having a residual monomer content less than 1,000 ppm.

REFERENCES:
patent: 3932372 (1976-01-01), Lewis et al.
patent: 4182851 (1980-01-01), Straubet et al.
patent: 5015708 (1991-05-01), Shih et al.
patent: 5073614 (1991-12-01), Shih et al.

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