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Class Information
Number: 430/181
Name: Radiation imagery chemistry: process, composition, or product thereof > Diazo reproduction, process, composition, or product > Composition or product which contains radiation sensitive compound having moiety of nitrogen double or triple bonded directly to nitrogen other than chromophore moiety, e.g., triazene containing product, etc., process of making, and composition or product used to finish or develop a diazo reproduction > Radiation-sensitive composition > Diazonium compound containing > Phenol coupler included
Description: Compositions which additionally contain a compound, having a hydroxy substituent directly attached to a benzene nucleus, which functions as a coupler for dye formation.


Patents under this class:

Patent Number Title Of Patent Date Issued
7011922 Thermal recording material Mar. 14, 2006
6864032 Method for forming azo colorant using diazo compound and coupler having leaving group and recording material using the coupler Mar. 8, 2005
6297058 Process for determining impurities in refractory materials Oct. 2, 2001
6190823 Diazo-containing photosensitive material Feb. 20, 2001
5582952 Photosensitive lithographic printing plate containing a two-equivalent coupler residue-containing polymer Dec. 10, 1996
5424164 Image forming method Jun. 13, 1995
5389491 Negative working resist composition Feb. 14, 1995
5338642 Diazo type recording material comprising two couplers wherein the novel coupler used is a bis-malonamide Aug. 16, 1994
5328796 Diazo type recording material utilizing microencapsulated diazo compound, a coupler and a hydroxyphenylsulfone derivative Jul. 12, 1994
5236800 Heat-developable light-sensitive copying material comprising microcapsules having substantially no solvent Aug. 17, 1993
5225309 Light-sensitive litho printing plate with cured diazo primer layer, diazo resin/salt light-sensitive layer containing a coupler and silicone rubber overlayer Jul. 6, 1993
4957847 Heat-sensitive cyclic diazo compound containing recording material with benzotriazine compound and coupling component Sep. 18, 1990
4937170 Coupling agents for photographic elements Jun. 26, 1990
4895826 Heat-sensitive recording material with diazonium salt and coupler precursor with ester or urethane group Jan. 23, 1990
4644376 Heat-sensitive recording material Feb. 17, 1987
4590263 High speed diazonium salts useful in diazo type photoreproduction May. 20, 1986
4569888 Transparentized paper sheet Feb. 11, 1986
4537851 Process of forming powder pattern using positive diazonium salt photoresist Aug. 27, 1985
4446218 Sulfur and/or amide-containing exposure accelerators for light-sensitive coatings with diazonium compounds May. 1, 1984
4439512 Chromogenic compositions containing stabilized phenolic coupler compounds, recording materials and processes utilizing same Mar. 27, 1984
4424270 Light-sensitive mixture comprising a naphthoquinonediazidesulfonic acid ester and process for preparing said ester Jan. 3, 1984
4421839 Heat-sensitive and photofixing recording sheet with diazosulfonate and acidic coupling agent therefore Dec. 20, 1983
4416950 Transparent fibrous sheets Nov. 22, 1983
4411979 Diazo type thermosensitive recording material Oct. 25, 1983
4401744 Diazotype compositions with improved printing performance Aug. 30, 1983
4307170 Negative-working diazo type photoreproduction having improved pH control Dec. 22, 1981
4304831 Black-color forming two-component type diazo copying material Dec. 8, 1981
4289839 Negative image diazography formulation with acid labile coupler, diazonium compound and carboxylic acid anhydride Sep. 15, 1981
4252884 Negative-working diazotype photoreproduction Feb. 24, 1981
4233391 Water developable photopolymerizable compositions containing phosphine activators and saponified polyvinyl acetate Nov. 11, 1980
3976491 Diazo compositions and diazotype materials prepared from same Aug. 24, 1976
3976488 Treating agent for diazo-type multicolor reproduction Aug. 24, 1976
3948661 Process for diazo-type multicolor reproduction Apr. 6, 1976



 
 
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