Preparation of latexes of color coupler polymers

Details Preparation of latexes of color coupler polymers Preparation of latexes of color coupler polymers

1988-12-14

1991-05-21

Schofer, Joseph L.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

430548, C08F 2608

Patent

active

050176676

ABSTRACT:
A method of preparing a latex of a color coupler polymer which method in characterized in that it comprises dissolving in at least one ethylenically unsaturated non-coupling monomer which is liquid at room temperature at least two monomeric color couplers, the total amount of couplers being from 1 to 50% by weight of the non-coupling monomer, and dispersing this solution in an aqueous solution of a surfactant and a polmerization initiating system, and wherein the melting point of the mixture of monomeric color couplers is below the reaction temperature of said polmerization system.

REFERENCES:
patent: 3926436 (1975-12-01), Monbaliu et al.
patent: 4080211 (1978-03-01), Van Paesschen et al.

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