Heat-sensitive color developable composition

Details Heat-sensitive color developable composition Heat-sensitive color developable composition

1987-09-04

1989-03-28

Jacobs, Lewis T.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

523409, 523410, 523426, C08K 320, C08L 2902

Patent

active

048165018

ABSTRACT:
A heat-sensitive color developable composition contains a color developing dye, an acidic material capable of developing the dye by heating and epoxy group-modified polyvinyl alcohol.

REFERENCES:
patent: 4251593 (1981-02-01), Sakamoto et al.
patent: 4388362 (1983-06-01), Iwata et al.
patent: 4523208 (1985-06-01), Barzynski
patent: 4616239 (1986-10-01), Yahagi et al.

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