Diazo based imaging element having improved storage stability

Details Diazo based imaging element having improved storage stability Diazo based imaging element having improved storage stability

1996-01-29

1998-02-03

Chu, John S.

Radiation imagery chemistry: process, composition, or product th

Diazo reproduction, process, composition, or product

Composition or product which contains radiation sensitive...

430160, 430175, 430176, 4302721, 430302, G03F 7021, G03C 193

Patent

active

057143005

ABSTRACT:
The present invention provides an imaging element comprising on a support a hydrophilic layer containing a hydrophilic (co)polymer or (co)polymer mixture and having been hardened with a hydrolysed tetraalkyl orthosilicate and a light sensitive layer containing a diazo resin and/or a diazonium salt characterized in that the light sensitive layer comprises at least one diazo resin or diazonium salt containing or being a diazonium salt of p-aminodiphenylamine containing as substituent an alkyl or alkoxy group and the weight percentage of said diazonium salt(s) and/or diazo resin(s) containing or being a diazonium salt of p-aminodiphenylamine containing as substituent an alkyl or alkoxy group versus the total amount of diazo resin and/or diazonium salt ranges from 22 to 40%.

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