Process for producing cross-linked monodispersed polymeric parti

Details Process for producing cross-linked monodispersed polymeric parti Process for producing cross-linked monodispersed polymeric parti

1993-07-26

1995-05-02

Reddick, Judy M.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

524547, 524551, 524555, 524559, 524562, 524566, 524765, 524766, C08F 206

Patent

active

054120489

ABSTRACT:
Spherical monodispersed polymeric particles are prepared from vinyl monomers and crosslinking polymerizable polyvinyl monomers. More particularly, a novel process for producing spherical monodispersed gel particles that are about 1-6 .mu.m in size and contain at least about 0.5 to about 3 weight percent (based on polymerizable vinyl monomer/vinyl polymer) of a polymerizable polyvinyl monomer is disclosed. The process comprises the steps of combining an isoalkanol solvent, a polymerizable vinyl monomer and a crosslinking polymerizable polyvinyl monomer under timed and monitored conditions.

REFERENCES:
patent: 3931092 (1976-01-01), Ramlow et al.
patent: 3971744 (1976-07-01), Hudecek et al.
patent: 4749506 (1988-06-01), Kitahara et al.
patent: 5238992 (1993-08-01), Outubuddin
Almog et al., British Polymer Journal 14, 131-136 (1982).
Ober et al., Journal of Polymer Science: Polymer Letters Edition, vol. 23, 103-108 (1985).
Tseng et al., Journal of Polymer Science 24, 2995-3007 (1986).

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