Patents by Inventor Raphael K. Van Poucke
Raphael K. Van Poucke has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 5030544Abstract: Color photographic motion picture elements adapted to form a multicolor photographic dye image and an integral, infrared-absorbing, dye sound track and comprising 1-hydroxy-2-N-(5-alkyl-thiazol-2-yl)-naphthamide couplers that are capable of forming quinone imine dyes absorbing infrared radiation in the spectral range from about 600 to about 1000 nm by reaction with an oxidized aromatic primary amino developing agent, the thiazol-2- yl group of said naphthamide couplers bearing a 4-para-C.sub.1 -C.sub.4 alkoxyphenyl group or a 4-para-C.sub.1 -C.sub.4 alkylphenyl group, the hydrogen atoms of said C.sub.1 -C.sub.4 alkoxy or C.sub.1 -C.sub.4 alkyl being unsubstituted or at least one of them having been substituted by a halogen atom.Type: GrantFiled: September 26, 1985Date of Patent: July 9, 1991Assignee: Agfa-Gevaert, N.V.Inventors: Henri F. Olbrechts, Raphael K. Van Poucke, Christian C. Van den Sande
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Patent number: 4458011Abstract: The present invention relates to compounds of the type comprising a ballasting group which renders said compounds substantially fast to diffusion in hydrophilic colloid media and at least one photographically useful group which is chemically linked to said ballasting group, and to photographic elements containing at least one compound of the type referred to.The ballasting groups in the compounds according to the present invention are derived from mono- or di-esters or -ethers of glycerol. The linkage between ballasting group and photographically useful group can be realized via acid chlorides which are derived from the above-said glycerol derivatives.Type: GrantFiled: October 29, 1982Date of Patent: July 3, 1984Assignee: AGFA-Gevaert, N.V.Inventors: Christian C. Van de Sande, Jan J. Vandewalle, Marcel J. Monbaliu, Raphael K. Van Poucke
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Patent number: 4450223Abstract: A photographic silver halide material comprising a compound which is capable of being reduced by a silver halide developing agent at a rate slower than that of image-wise developable silver halide and in reduced state is capable of releasing a photographically useful group, characterized in that said compound corresponds to the following formula: ##STR1## wherein: R.sup.10 and R.sup.20 (same or different)(1) represent an alkyl group, a cycloalkyl group, an alkenyl group, a cycloalkenyl group or an aralkyl group including said groups in substituted form,(2) represent an aryl group including a substituted aryl group, or(3) represent a heterocyclic ring residue including such residue in substituted form, orR.sup.10 and R.sup.20 are ringclosed, either R.sup.10 or R.sup.20 containing a ballasting group conferring diffusion resistance to the compound in hydrophilic colloid media when penetrated by an aqueous alkaline liquid;L.sup.1 and L.sup.2 (same or different) represent a ##STR2## --SO.sub.Type: GrantFiled: February 14, 1983Date of Patent: May 22, 1984Assignee: AGFA-Gevaert, N.V.Inventors: Raphael K. Van Poucke, Christian C. Van de Sande, Andree Verhecken
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Patent number: 4430421Abstract: Method of dispersing photographic adjuvants in hydrophilic colloid compositions for forming a water-permeable photosensitive or non-photosensitive colloid layer of a photographic silver halide element with the aid of at least one high-boiling substantially water-insoluble oil-former of the class of dihydroxymethyl(5,2,1,0.sup.2,6)tricyclodecane and the carboxylic, phosphoric, or phosphonic di-ester derivatives thereof.Type: GrantFiled: December 29, 1982Date of Patent: February 7, 1984Assignee: Agfa-Gevaert, N.V.Inventors: Christian C. Van de Sande, Jan J. Vandewalle, Raphael K. Van Poucke, Andre K. Claes
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Patent number: 4430422Abstract: Method of dispersing photographic adjuvants in a hydrophilic colloid composition for forming a water-permeable photosensitive or non-photosensitive colloid layer of a photographic silver halide element with the aid of at least one high-boiling substantially water-insoluble oil-former of the class of 1,3-dialkyloxy-2-propanols and the carboxylic, phosphoric, or phosphonic esters thereof.Type: GrantFiled: December 29, 1982Date of Patent: February 7, 1984Assignee: Agfa-Gevaert, N.V.Inventors: Christian C. Van de Sande, Jan J. Vandewalle, Luc K. Martens, Raphael K. Van Poucke
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Patent number: 4342825Abstract: Cyan-forming phenol type color couplers comprising in the 2-position of the phenol a benzamido group carrying on the benzene nucleus of the benzamido group at least one --Q--Rf group wherein Q is --O--, --S--, or --SO.sub.2 --, and Rf is a short-chain fluorine-containing group derived from hexafluoropropylene or trifluorochloroethylene.These cyan-forming color couplers can be incorporated in (a) red-sensitized silver halide emulsion layer(s) of a photographic multilayer color element or in a non-light-sensitive colloid layer in water-permeable relationship with the red-sensitized emulsion layer(s).Type: GrantFiled: March 25, 1981Date of Patent: August 3, 1982Assignee: AGFA-GEVAERT N.V.Inventors: Raphael K. Van Poucke, Marcel J. Monbaliu, Jan J. Vandewalle
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Patent number: 4341864Abstract: Cyan-forming color couplers according to the formula: ##STR1## wherein Z is hydrogen in the case of 4-equivalent couplers or a substituent that splits off upon color development, thus conferring a 2-equivalent character to the color coupler, and Y is a ballasting group. These cyan-forming color couplers can be incorporated in (a) red-sensitized silver halide emulsion layer(s) of a photographic multilayer color element or in a non-light-sensitive colloid layer in water-permeable relationship with the red-sensitized emulsion layer(s).Type: GrantFiled: March 12, 1981Date of Patent: July 27, 1982Assignee: Agfa-Gevaert, N.V.Inventors: Jan J. Vandewalle, Marcel J. Monbaliu, Raphael K. Van Poucke
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Patent number: 4340664Abstract: Latexes suited for homogeneously incorporating compounds with a photographically useful group into photographic silver halide emulsion materials. The latex incorporates a copolymer comprising recurring units of a monomer with photographically useful group, and recurring units of surface active monomer, according to the general formula: ##STR1## wherein: R.sup.1 is hydrogen or methyl,n is 0 or 1 to 20,L is ##STR2## R.sup.2 is hydrogen or a hydrocarbon group, R.sup.3 is a monovalent chemical bond or a bivalent aliphatic hydrocarbon group or such group interrupted by the group --COO-- or --CONR--, andY is a sulpho, sulphato or phosphono group in acid or salt form, and at least one of the groups --(CH.sub.2).sub.n --, R.sup.2 and R.sup.3 is or comprises a hydrocarbon chain of at least 8 C-atoms.Type: GrantFiled: September 19, 1980Date of Patent: July 20, 1982Assignee: Agfa-Gevaert, N.V.Inventors: Marcel J. Monbaliu, Walter F. De Winter, Raphael K. Van Poucke
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Patent number: 4230870Abstract: Novel magenta forming color couplers for use in silver halide color photography are described which correspond to the formula: ##STR1## wherein R.sub.1 represents hydrogen, alkyl or aryl; R.sub.2 represents fluoroalkyl, cyanoalkyl or phenyl; X is hydrogen or a displaceable group; Ar represents phenylene and Y represents alkyl, aryl, alkylamino, arylamino or alkylarylamino.Type: GrantFiled: March 29, 1976Date of Patent: October 28, 1980Assignee: AGFA-GEVAERT N.V.Inventors: Hector A. Vanden Eynde, Raphael K. Van Poucke
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Patent number: 4201584Abstract: Novel color forming couplers for use in silver halide color photography are described. These couplers upon oxidative coupling with an aromatic primary amino color developing agent produce dyes of improved stability against light and dyes having favorable spectral absorption characteristics. The couplers have high coupling activity and thus produce high color densities.The novel couplers are acylacetanilide compounds whereof the phenyl nucleus of the anilide group carries oxyhydrocarbon groups, preferably alkoxy groups in the 2-, 4- and 5-position with respect to the amido group.Type: GrantFiled: September 19, 1978Date of Patent: May 6, 1980Assignee: AGFA-GEVAERT N.V.Inventors: Marcel J. Monbaliu, Raphael K. Van Poucke
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Patent number: 4131735Abstract: A method is described for preparing an .alpha.-substituted-.alpha.-acylacetamide wherein an .alpha.-acyl-.alpha.-halo-acetamide is allowed to react with an organic compound with pKa between 7 and 12 in a medium of an aprotic solvent and in the presence of a tetraalkylguanidine as basic condensing agent.Type: GrantFiled: November 25, 1975Date of Patent: December 26, 1978Assignee: AGFA-GEVAERT, N.V.Inventors: Raphael K. Van Poucke, Freddy C. Baeyens, Paul A. Mortelmans
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Patent number: 4130427Abstract: 2-equivalent color couplers for yellow carrying at the coupling position via an oxygen atom a 5-membered N-containing unsaturated heterocyclic substituent, that is split off during oxidative coupling with an aromatic primary amine color developer and forms a competing coupler molecule.Type: GrantFiled: May 31, 1977Date of Patent: December 19, 1978Assignee: Agfa-Gevaert, N.V.Inventors: Marcel J. Monbaliu, Raphael K. Van Poucke
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Patent number: 4128427Abstract: Polymeric color couplers with improved light stability comprising in addition to color coupler units, competing coupler units and one or more copolymerized non-coupling monomeric units, thereof the weight ratio of the color coupler units to the competing coupler units is between 10:1 and 1:2 and the weight ratio of the copolymerized non-coupling monomeric units is at least 5%.Type: GrantFiled: June 6, 1977Date of Patent: December 5, 1978Assignee: AGFA-GEVAERT, N.V.Inventors: Marcel J. Monbaliu, Raphael K. Van Poucke
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Patent number: 4123281Abstract: Color photographic material containing a fast-acting hardener, which acts by activating carboxyl groups, wherein said material contains a 2-pyrazolin-5-one coupler precursor corresponding to one of the following general formulae I or II: ##STR1## wherein EACH OF R.sup.1, R and Y are substituents of the type used in 2-pyrazolin-5-one color couplers, andZ represents acyl, alkoxycarbonyl, aryloxycarbonyl,Or ##STR2## in which R.sup.1, R, and Y have the above-defined significance, and A represents an alkylene group or an arylene group.Type: GrantFiled: August 17, 1976Date of Patent: October 31, 1978Assignee: Agfa-Gevaert N.V.Inventors: Marcel J. Monbaliu, Hans-Heinrich Credner, Wolfgang Himmelmann, Ernst Meier, Gaston J. Benoy, Raphael K. Van Poucke, Karl-Wilhelm Schranz, George F. Van Veelen