Process for producing microcapsules containing a diazonium salt compound and a photofixation thermal recording material employing the same
US5492789A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 26, 1994 |
| Grant date | Feb 20, 1996 |
| Priority date | — |
| Expiry date | Oct 26, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03C1/002
- WIPO fieldOptics
- WIPO sectorInstruments
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.