Divinyl compounds and chromogenic recording-material prepared by

Details Divinyl compounds and chromogenic recording-material prepared by Divinyl compounds and chromogenic recording-material prepared by

1987-04-13

1989-02-28

Lee, Mary C.

Record receiver having plural interactive leaves or a colorless

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

Identified color-former

427151, 548523, 503223, 546 96, 546165, 546166, 544141, 540602, B41M 516, B41M 518, B41M 522, C07D40506

Patent

active

048085677

ABSTRACT:
Disclosed herein are novel divinyl compounds represented by the formula (I): ##STR1## and a recording-material prepared by utilizing the divinyl compounds. The present divinyl compound is in itself almost colorless, extremely stable in the atmosphere and develops rapidly blakish color by a developer. The color image given by the present divinyl compound is excellect in light-resistance and moisture-resistance and the letters developed can be read by an optical letter-reading apparatus or a barcord reading apparatus.

REFERENCES:
patent: 4020056 (1977-04-01), Farber
patent: 4022771 (1977-05-01), Farber
patent: 4107128 (1978-08-01), Farber
patent: 4119776 (1978-10-01), Farber
patent: 4641160 (1987-02-01), Kondo

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