Diazotype composition with a non-migrating yellow coupler of con

Details Diazotype composition with a non-migrating yellow coupler of con Diazotype composition with a non-migrating yellow coupler of con

1986-10-17

1988-05-10

Bowers, Jr., Charles L.

Radiation imagery chemistry: process, composition, or product th

Diazo reproduction, process, composition, or product

Composition or product which contains radiation sensitive...

430148, 430173, 430180, G03C 158

Patent

active

047435240

ABSTRACT:
Diazotypes with new yellow coupler with an active methylene group are disclosed; the couplers do not migrate and excel by their relatively reduced coupling speed for greatly improved shelf life of diazotypes. In preferred embodiments the improved new diazotypes contain acetoacetoxyethyl methacrylate or acrylate as yellow coupler.

REFERENCES:
patent: 2551133 (1951-05-01), Jennings et al.
patent: 2552355 (1951-05-01), Von Glahn et al.
patent: 3149972 (1964-09-01), Herrick et al.
patent: 3459790 (1969-08-01), Smith
patent: 4012260 (1977-03-01), Dickerson et al.
patent: 4032344 (1977-06-01), Fletcher et al.
patent: 4215041 (1980-07-01), Phlipot et al.

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