Process for preparing an aqueous emulsion or dispersion of a par

Details Process for preparing an aqueous emulsion or dispersion of a par Process for preparing an aqueous emulsion or dispersion of a par

1980-09-10

1982-06-22

Michl, Paul R.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

260 296RW, 260 296MH, 260 296PT, 524458, 524465, 524577, 524314, 524794, 524836, 524560, 523221, C08L 2506

Patent

active

043361730

ABSTRACT:
The invention provides a process for preparing an aqueous emulsion or dispersion of a partly water-soluble material, and optionally further conversion of the prepared dispersion or emulsion to a polymer dispersion when the partly water-soluble material is a polymerizable monomer. In a first step a dispersion of polymer particles is prepared containing one or more materials having a very low solubility in water, then in a second step there is added the partly water-soluble material which diffuses into the particles from the first step, and then, if the partly water-soluble material is a polymerizable monomer, polymerization may be effected.

REFERENCES:
patent: 2467352 (1949-04-01), Williams
patent: 2538273 (1951-01-01), Rhines
patent: 3669728 (1972-06-01), Seiner
patent: 3669729 (1972-06-01), Seiner
patent: 4011388 (1977-03-01), Murphy
patent: 4094841 (1978-06-01), Mani
patent: 4113687 (1978-09-01), Ugelstad
patent: 4152496 (1979-05-01), Barrett
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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