Indolizinone dyes and compositions, elements and methods...

Details Indolizinone dyes and compositions, elements and methods... Indolizinone dyes and compositions, elements and methods...

C - Chemistry, Metallurgy

09

B

8/1, 96/156, 260

C09B 57/00 (2006.01) C07D 471/04 (2006.01) G03C 1/675 (2006.01) G03C 1/72 (2006.01) G03C 5/16 (2006.01)

Patent

CA 1174678

Abstract There are disclosed dyes, compositions, imaging elements, and methods of forming images, wherein cyclo- propenones are reacted with di- or tri-halogenated com- pounds in the presence of pyridine to form said dyes. In areas exposed to activating radiation, the cyclopro- penone decomposes and prevents the dye reaction from occurring.

390791

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