Process for producing microcapsules containing a diazonium salt

Details Process for producing microcapsules containing a diazonium salt Process for producing microcapsules containing a diazonium salt

1994-10-26

1996-02-20

Chu, John S. Y.

Radiation imagery chemistry: process, composition, or product th

Microcapsule, process, composition, or product

430151, 430157, 430168, 430169, G03C 172, G03C 158

Patent

active

054927897

ABSTRACT:
A process for producing microcapsules containing a diazonium salt compound, and a photofixation thermal recording material employing the same. The process comprises adding an organic solvent solution containing both the diazonium salt compound and a polyfunctional isocyanate compound to an aqueous solution of a water-soluble polymer, emulsifying the organic solvent solution into the aqueous solution using an emulsifying agent, and then polymerizing the polyfunctional isocyanate compound to form microcapsule walls, said emulsifying agent comprising an alkyl glucoside represented by formula (I): ##STR1## wherein n is an integer of 0 to 2 and R represents a linear or branched alkyl group having 4 to 18 carbon atoms.

REFERENCES:
patent: 4737484 (1988-04-01), Iwasaki et al.
patent: 5198321 (1993-03-01), Hosoi et al.
patent: 5304452 (1994-04-01), Ohno et al.

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