Highly crosslinked polymer particles and process for producing t

Details Highly crosslinked polymer particles and process for producing t Highly crosslinked polymer particles and process for producing t

1988-07-29

1990-08-28

Hoke, Veronica P.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

521 62, 521 63, 521 64, 526203, C08F23602

Patent

active

049526510

ABSTRACT:
Highly crosslinked polymer particles, which may be porous, consisting essentially of a non-hydrophilic polymer can be produced by adding a polymerizable monomer mixture comprising at least 20% by weight of at least one non-hydrophilic, crosslinking polyvinyl monomer to an aqueous dispersion containing a non-crosslinked, low molecular weight polymer particles having a weight average molecular weight of 500-10,000 as a dispersoid, with a non-reactive solvent in a proportion of not more than 1 part by weight per part by weight of the polymerizable monomer mixture, the proportion of the polymerizable monomer mixture plus the non-reactive solvent to the non-crosslinked, low molecular weight polymer particles being 4 to 20 parts by weight per part by weight of the non-crosslinked, low molecular weight polymer particles, and then subjecting the polymerizable monomer mixture to radical emulsion polymerization with stirring.

REFERENCES:
patent: 4186120 (1980-01-01), Ugelstad
patent: 4336173 (1982-06-01), Ugelstad
patent: 4419245 (1983-12-01), Barrett et al.
patent: 4694035 (1987-09-01), Kasai et al.

Affiliated with

Also associated with

Rating

Highly crosslinked polymer particles and process for producing t does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Highly crosslinked polymer particles and process for producing t, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Highly crosslinked polymer particles and process for producing t will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1590602