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| Number | Title | Issue Date |
| 6797183 | Method of treating waste effluent This invention provides a method of treating waste effluent, particularly photographic effluent, containing reduced species such as thiosulphate or sulphite, by oxidation with hydrogen peroxide or a compound capable of releasing hydrogen peroxide, in the presence of... | 09/28/2004 |
| 6027847 | Poly(vinylbenzyl quaternary phoshonium) salt charge control agents A poly(vinylbenzyl quaternary phosphonium) salt having the following general structure: M represents Fe or Zn; X represents F, Cl, Br or I; p is 3 when M represents Zn and p is 4 when M represents Fe; ortho, meta and para isomers of the vinyl benzyl moiety are incl... | 02/22/2000 |
| 5985017 | Potassium N-methyl-N-oleoyl taurate as a dispersant in pigmented ink jet inks An ink jet printing method is described. It comprising the steps of: providing an ink jet printer that is responsive to digital data signals; loading the printer with ink receptive substrates; loading the printer with an aqueous ink jet ink, said ink A) c... | 11/16/1999 |
| 5972831 | Inorganic transparent photocatalytic composition The present invention concerns a novel photocatalytic composition, a photocatalytic element and a novel method for the photocatalytic treatment of effluents, comprising a gaseous or aqueous solution of the organic compounds to be destroyed. This novel pho... | 10/26/1999 |
| 5972576 | Method of decontaminating a photographic bath with heat-reversible polymers The invention concerns a method for decontaminating a used photographic processing bath. This method consists of putting the processing bath in contact with a heat-reversible hydrophilic polymer which becomes hydrophobic above a temperature lower than the... | 10/26/1999 |
| 5961939 | Process for recovery of silver from hardening photoprocessing solutions There is provided a method for removing silver from photoprocessing solutions containing hardening agents which comprises: a) adding a chelating agent to the photoprocessing solution in an amount sufficient to inhibit the precipitation of the high valent catio... | 10/05/1999 |
| 5959960 | Method of providing a range of conformalities for optical recording layers A method of coating an optical recording layer on a transparent grooved substrate is disclosed. The recording layer is coated from a mixture of a primary and a secondary solvent. The solvent mixture provides a wide range of conformalities for optical reco... | 09/28/1999 |
| 5948372 | Device for destroying reaction gases by incineration A device for destroying by electro-oxidation a photographic solution having at least one photographic developer. The device comprises a) an electro-oxidation unit adapted to degrade the photographic developer into volatile organic compounds and to produce... | 09/07/1999 |
| 5945003 | Method for eliminating heavy metals from a photographic effluent The present invention concerns a method for the depollution of photographic effluents. The method of the invention comprises the step of forming in situ in the effluent an adsorbent of the hydrotalcite type. This method is useful for the elimination of si... | 08/31/1999 |
| 5932690 | Optical recording elements having recording layers exhibiting reduced bubble formation The present invention discloses an optical recording element having, in the following order, a transparent substrate, a recording layer and a light reflecting layer wherein the recording layer (A) has a real refractive index (N) at 780 nm not less than 1.8 and... | 08/03/1999 |
| 5932183 | Material and method for inhibiting bacterial growth in an aqueous medium A biocidal material comprises an organic biocide immobilised on a polymeric support characterised in that the support is water-insoluble and the biocide is covalently bound to the support by a hydrolytically stable covalent linkage. The material can be us... | 08/03/1999 |
| 5922822 | (2-(sulfonamidomethylene)-2-cyanoacetamido)phenyl acrylate polymers (2-(Sulfonamidomethylene)-2-cyanoacetamido)phenyl acrylate compounds and polymers are disclosed. The polymers are useful charge-control agents in electrostatographic toners and developers.... | 07/13/1999 |
| 5922499 | 2-(1,2-benzisothiazol-3(2H)-ylidene 1,1-dioxide)-2- cyanoacetamides charge-control agents for electrostatographic toners and developers A 2-(1,2-benzisothiazol-3(2H)-ylidene 1,1-dioxide)-2-cyanoacetamides having the following general structure: wherein R and R1 are defined in the specification. The compounds are useful as charge-control agents in electrostatographic toners and devel... | 07/13/1999 |
| 5922429 | Optical recording elements having recording layers containing mixtures of low k metallized formazan and cyanine dyes An optical recording element is disclosed. The element has a transparent substrate and on the surface of said substrate, a recording layer and a light reflecting layer wherein recording layer comprises a mixture of a metallized formazan dye and cyanine dy... | 07/13/1999 |
| 5922504 | Optical recording elements having recording layers containing mixtures of no k metallized formazan and cyanine dyes An optical recording element is disclosed. The element has a transparent substrate and on the surface of said substrate, a recording layer and a light reflecting layer wherein recording layer comprises a mixture of a metallized formazan dye and cyanine dy... | 07/13/1999 |
| 5902673 | Waterproof receiver sheet for toner images A toner image receiver sheet for electrophotography comprises a substantially opaque substrate of microporous material and, disposed on at least one surface of the substrate, a substantially water-impervious toner image-receiving layer comprising a thermo... | 05/11/1999 |
| 5879774 | Multilayer laminate elements having an adhesive layer Multiple layer laminate element, such as DVD optical recording elements, are disclosed. The laminates include a cured cyanoacrylate adhesive layer in direct contact with a polymeric layer having a chemically bound cure accelerator for the cyanoacrylate.... | 03/09/1999 |
| 5876821 | Tetra dye mixed with another dye or dyes for optical recording elements A dye mixture having, at 780 nm, a real refractive index not less than 1.8, and an imaginary part not greater than 0.15 and comprising (a) a tetra dye having a metallized azo dianionic dye with a cationic dye counterion and (b) at least one other dye havi... | 03/02/1999 |
| 5874584 | Ion-sensitive compounds An ion-sensitive calix(4)arene compound having the formula A2 +B2 - wherein A represents a cation capable of forming a receptor-substrate complex with an anion, and B represents sulfate, nitrate or borate, characterized in that the ... | 02/23/1999 |
| 5874018 | Overcoated charge transporting elements and glassy solid electrolytes Glassy solid electrolytes and charge transporting elements including antistatic elements and charge generating elements. The charge generating element has an electrically conductive layer, a charge generating layer overlying the electrically conductive la... | 02/23/1999 |
| 5874194 | PolyN-vinylbenzoyl)sulfonamides! charge-control agents for electrostatographic toners and developers An electrostatographic toner comprising a polyN-(4-vinylbenzoyl)sulfonamide! charge-control agent is disclosed. The agent having recurring units according to the general structure: ##STR1## represents any copolymerizable comonomer and R1... | 02/23/1999 |
| 5866633 | Material and method for inhibiting bacterial growth in an aqueous medium A biocidal material comprises an organic biocide immobilized on a polymeric support characterized in that the support is water-insoluble and the biocide is covalently bound to the support by a hydrolytically stable covalent linkage. The material can be us... | 02/02/1999 |
| 5858630 | Process for treating a photographic bath containing organic contaminants The present invention concerns a process for treating photographic baths containing organic contaminants and a device for implementing this method. The process for treating a photographic bath containing contaminants comprises the step of putting the photograp... | 01/12/1999 |
| 5855899 | Material method and apparatus for inhibiting microbial growth in an aqueous medium A biocidal material comprises a biocide immobilized in a porous inorganic polymer network such as a sol-gel matrix. The polymer may be coated on an inorganic support. The material can be used for inhibiting microbial growth in an aqueous medium, e.g., the... | 01/05/1999 |
| 5856021 | Toner-receptive media for digital offset printing The toner image receiver sheet of the invention, which is useful for digital offset printing, comprises a resin-coated paper substrate on which is formed an image-receiving layer comprising an imino-functionalized polymer and a gelatin. In a process for m... | 01/05/1999 |
| 5853892 | Amorphous fluoropolymer coated fusing belt A fuser belt comprising an amorphous fluoropolymer outer layer for fusing a thermoplastic resin toner image to a substrate produces high gloss images, wherein the amorphous fluoropolymer has the structure: ##STR1## in which m is 20 mole percent or 35... | 12/29/1998 |
| 5849449 | Electrostatographic developer having toner particles containing polymers of (2-cyanoacetamido)phenyl acrylates polymers A (2-cyanoacetamido)phenyl acrylate monomer is disclosed. It is used to make polymers. The polymers are useful for making toners for electrostatographic developers.... | 12/15/1998 |
| 5849450 | (1,2-benzisothiazol-3-(2H)-ylidene 1,1-dioxide) acetate-terminated polymer charge-control agents for electrostatographic toners and developers Novel (1,2-benzisothiazol-3(2H)-ylidene 1,1-dioxide)acetate-terminated polymer charge-control agents are disclosed. They have the general structure (I): ##STR1## n can be as high as the number of hydroxyl groups in the polymer from which structu... | 12/15/1998 |
| 5846428 | Method for modifying the surface of a polymer membrane, and a membrane thus modified The present invention concerns a method for modifying the transfer characteristics of a porous organic or inorganic membrane, in which a) on the said membrane, at least one layer is formed by applying at least one homogeneous solution obtained by mixing one or... | 12/08/1998 |
| 5846555 | Organic/inorganic gels for delivering controlled quantities of active compounds in aqueous solutions The invention concerns a composite gel comprising an inorganic matrix containing a fibrous inorganic polymer in which an active organic compound is dispersed. The invention also concerns a device comprising the gel and a process for delivering a controlle... | 12/08/1998 |
| 5843629 | Method of treating a seasoned ascorbic acid developer The present invention concerns a method of treating a seasoned ascorbic acid developer for developing silver halide photographic products. The method of the invention comprises the step of treating the developer through a resin having a greater selectivit... | 12/01/1998 |
| 5837044 | Ink jet inks containing polyethylene fatty ether additives A liqiud ink jet ink comprising a carrier, a pigment, a dispersant and a polyoxyethylene fatty ether additive.... | 11/17/1998 |
| 5824396 | Digital offset printing media The toner image receiver sheet of the invention, which is useful for digital offset printing, comprises a resin-coated paper substrate on which is disposed an image-receiving layer comprising an imino-functionalized polymer and a polyurethane. In a proces... | 10/20/1998 |
| 5824768 | Polymeric dyes for optical recording layers and elements There is disclosed a recordable optical element that includes a polymeric dye. The element has a transparent substrate and on the surface of the substrate, a polymeric dye containing recording layer and a light reflective layer. The improvement is that po... | 10/20/1998 |
| 5821346 | Metallized carbamoylazo dyes Metallized carbamoylazo dyes having an azo group linking a substituted 3-hydroxypyridine nucleus to a phenyl nucleus are disclosed. The phenyl nucleus has a carbamoyl substituent ortho to the azo group. The dyes are useful in optical recording elements.... | 10/13/1998 |
| 5821024 | (1,2-benzisothiazol-3(2H)-ylidene 1,1-dioxide) cyanomethylene charge-control agents for electrostatotographic toners and developers A (1,2-benzisothiazol-3(2H)-ylidene 1,1 -dioxide) cyanomethylene charge control-agent is disclosed. The agent has the structure: ##STR1## R is defined in the specification. They are useful in electrostatographic toners and developers.... | 10/13/1998 |
| 5821025 | N-(1,2-benzisothiazol-3(2H)-ylideneacetyl 1,1-dioxide)amides for electrostatographic toners and developers A N-(1,2-benzisothiazol-3(2H)-ylideneacetyl 1,1-dioxide)amide having the general structure: ##STR1## wherein R is defined in the specification. The compounds are negative charge-control agents for use in electrostaticographic toners and develope... | 10/13/1998 |
| 5821029 | Optical recording elements containing mixtures of metallized carbamoylazo and cyanine dyes An optical recording element having a transparent substrate and on the surface of said substrate, a recording layer and a light reflecting layer. The recording layer comprises (i) a metallized carbamoylazo dye having an azo group linking a substituted 3-h... | 10/13/1998 |
| 5811214 | Monocomponent developer comprising surface treated toners A monocomponent electrostatographic developer is disclosed. The developer contains a negative charging toner wherein the toner particle surface contains particles of cerium dioxide and a mixture of two hydrophobic silicon dioxides having a particle size o... | 09/22/1998 |
| 5804348 | PolyN-(acyl)-4-vinylbenzenesulfonamides! charge-control agents for electrostatographic toners and developers An electrostatographic toner comprising a polyN-(acyl)-4-vinylbenzenesulfonamide! charge-control agent is disclosed.... | 09/08/1998 |
