Monodisperse polymer particles and dispersions thereof

Details Monodisperse polymer particles and dispersions thereof Monodisperse polymer particles and dispersions thereof

1982-03-30

1984-07-10

Michl, Paul R.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

524458, 524460, 526201, 526203, C08L 2506

Patent

active

044593783

ABSTRACT:
The invention provides monodisperse polymer particles and dispersions thereof, said particles having a diameter of preferably 5 .mu.m or more. Such polymer dispersions are prepared by in a first step preparing a dispersion of smaller monodisperse polymer particles containing one or more materials having a very low solubility in water, and a relatively low molecular weight, then in a second step adding a partly water-soluble monomer which diffuses into the particles from the first step, and then effecting polymerization.

REFERENCES:
patent: 4011388 (1977-03-01), Murphy
patent: 4094841 (1978-06-01), Mani
patent: 4113687 (1978-09-01), Ugelstad
patent: 4186120 (1980-01-01), Ugelstad
patent: 4247434 (1981-01-01), Lovelace
Dale M. Kornfeld, "Large-Size Monodisperse Latexes as a Commercial Space Product", NASA, Aug. 1977.

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