Radiation imagery chemistry: process – composition – or product th – Radiation sensitive product – Identified radiation sensitive composition with color...
Patent
1991-02-06
1991-12-03
Bowers, Jr., Charles L.
Radiation imagery chemistry: process, composition, or product th
Radiation sensitive product
Identified radiation sensitive composition with color...
430 17, 430512, 430523, 430931, G03C 184, G03C 726, C07D33502
Patent
active
050700073
ABSTRACT:
Phenolic thiane derivatives of the formula I or II ##STR1## in which n is 0, 1 or 2 and R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.6, R.sup.7, R.sup.8, R.sup.9, R.sup.10, T and Z are as defined in claim 1, are effective stabilizers for color photography recording materials, in particular for the yellow layer. They act not only as light stabilizers but also as stabilizers against thermal oxidation.
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Leppard David G.
Rody Jean
Bowers Jr. Charles L.
Ciba-Geigy AG
Doody Patrick A.
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