Divinyl carbinol or carbinol derivative chromogenic compounds an

Details Divinyl carbinol or carbinol derivative chromogenic compounds an Divinyl carbinol or carbinol derivative chromogenic compounds an

1990-11-15

1992-09-01

Hess, Bruce H.

Record receiver having plural interactive leaves or a colorless

Having a colorless color-former, developer therefor, or...

Identified color-former

427150, 427151, 503223, B41M 5136, B41M 530

Patent

active

051438917

ABSTRACT:
A chromogenic compound for use in pressure- or heat-sensitive record material has the general formula (I):

REFERENCES:
patent: 3257202 (1966-06-01), Schlesinger
patent: 3957288 (1976-05-01), Lemahieu et al.
Zimmerman et al., "Cyclopropanols and the Di-n-methane Rearrangement: Mechanistic and Exploratory Organic Photochemistry", 53 J. Organic Chemistry, No. 16, 3792-03 (1988).

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