Heat sensitive diazo type recording material utilizing microenca

Details Heat sensitive diazo type recording material utilizing microenca Heat sensitive diazo type recording material utilizing microenca

1992-10-09

1994-04-19

Bowers, Jr., Charles L.

Radiation imagery chemistry: process, composition, or product th

Microcapsule, process, composition, or product

430151, 430157, 430292, 430336, 430337, 430338, G03C 518, G03F 7021

Patent

active

053044525

ABSTRACT:
A recording material comprising a support coated with a photosensitive layer comprising a photosensitive diazo compound enclosed in microcapsules and a coupling component. The microcapsules are produced by forming an organic solution containing the diazo compound and a wall monomer, and emulsifying the organic solution in an aqueous solution containing an anionic surface-active agent and polyvinylpyrrolidone to produce oil droplets containing the wall monomer. The wall monomer is polymerized to form a wall around the oil droplets. When heat is applied to the photosensitive layer under alkaline conditions, the coupling component reacts with the diazo compound to form a color.

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