Fine spherical polymer particles and process for the preparation

Details Fine spherical polymer particles and process for the preparation Fine spherical polymer particles and process for the preparation

1980-10-21

1982-11-23

Michl, Paul R.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

524430, 524447, 526910, C08K 902

Patent

active

043606113

ABSTRACT:
A suspension polymerization of polymerizable monomers containing a prepolymer is conducted in a system containing an inorganic dispersion stabilizer and occasionally, an inorganic pigment and/or black coloring agent, in which the polymerizable monomers have an opposite charge in water to the inorganic dispersion stabilizer whereby the former is ionically bound with the latter. The suspension polymerization during the middle stage in which polymer particles are apt to stick together is stabilized and the polymer particles are prevented from coalescing so that fine spherical polymer particles are obtained with a uniform particle size distribution.
Also, the suspension polymerization is conducted having liquid resins involved in polymerizable monomers thereby to obtain non-sticky, free flowing particles. These particles adhere to paper sheets by mechanically smashing.

REFERENCES:
patent: 2934530 (1960-04-01), Ballast et al.
patent: 3287305 (1966-11-01), Maeder
patent: 3634251 (1972-01-01), Maeda et al.
patent: 3691140 (1972-09-01), Silver
patent: 3926890 (1975-12-01), Huang
patent: 4071670 (1978-01-01), Vanzo et al.
patent: 4100229 (1978-07-01), Schwartz
patent: 4234466 (1980-11-01), Takahashi et al.
patent: 4269760 (1981-05-01), Wakimoto
patent: 4314932 (1982-02-01), Wakimoto

Affiliated with

Also associated with

Rating

Fine spherical polymer particles and process for the preparation does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1879660