Patents Represented by Attorney, Agent or Law Firm J. Jeffrey Hawley
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Patent number: 5192609Abstract: A thermoformable basecoat/clearcoat sheet material having improved retention of geometric metamerism (flop) when stretched and bonded to a substrate comprises a carrier film having a dark basecoat layer and, over the basecoat layer, a transparent layer which contains light reflective metallic flakes and, over the flake layer, a clear topcoat layer.Type: GrantFiled: January 13, 1992Date of Patent: March 9, 1993Assignee: Eastman Kodak CompanyInventor: John F. Carroll, Jr.
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Patent number: 5190698Abstract: There is disclosed a composite of 1) a polymer containing repeating units derived from a vinyl carboxylic ester having at least one organo terminated poly(alkylene oxide) side chain with the proviso that the poly(alkylene oxide) is present in an amount greater than 35 mole percent of the total of all backbone monomer units and alkylene oxide units in the polymer and 2) a metal oxide wherein the metal oxide comprises between about 1 and about 60 percent by weight of the composite. The composites can be made by a process comprising the steps of:combining the described polymer and a metal oxide precursor in a solvent solution;casting or coating the resulting solution onto a substrate;curing the resulting sample to form a composite of the polymer and the metal oxide.Optionally, the composite can be removed from the substrate to form a transparent free standing film. These composites have a variety of desirable properties.Type: GrantFiled: April 15, 1991Date of Patent: March 2, 1993Assignee: Eastman Kodak CompanyInventors: Bradley K. Coltrain, Neil T. Ferrar, Christine J. T. Landry, S. R. Turner
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Patent number: 5189010Abstract: A process of forming on a substrate a coating of a precursor of a crystalline rear earth alkaline earth copper oxide or heavy pnictide mixed alkaline earth copper oxide electrical conductor and converting the precursor to the crystalline electrical conductor.Type: GrantFiled: June 10, 1991Date of Patent: February 23, 1993Assignee: Eastman Kodak CompanyInventors: Laurie A. Strom, Edward Carnall,Jr., Steven A. Ferranti, Jose M. Mir
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Patent number: 5149824Abstract: There is provided a method for the production of an arylamide bisnadimide. The arylamide bisnadimide is useful as a prepolymer. The method includes the step of: condensing a nadimide compound having the nitrogen of said nadimide substituted with a halogen substituted aromatic group, with a dinucleophile in the presence of carbon monoxide, a base and a palladium catalyst.Type: GrantFiled: July 1, 1991Date of Patent: September 22, 1992Assignee: Eastman Kodak CompanyInventors: S. Richard Turner, Robert J. Perry, Richard W. Blevins
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Patent number: 5150006Abstract: An internal junction organic electroluminescent device is disclosed comprised of, in sequence, an anode, an organic hole injecting and transporting zone, an organic electron injecting and transporting zone, and a cathode. The organic electron injecting and transporting zone is comprised of an electron injecting layer in contact with the cathode and, interposed between the electron injecting layer and the organic hole injecting and transporting zone, a blue emitting luminescent layer comprised of an aluminum chelate containing a phenolato ligand and two R.sup.S -8-quinolinolato ligands, where R.sup.S substitutents are chosen to block the attachment of more than two substituted 8-quinolinolato ligands to the aluminum atom. The presence of the phenolato ligand shifts device emission to the blue region of the spectrum and increases emission efficiency.Type: GrantFiled: August 1, 1991Date of Patent: September 22, 1992Assignee: Eastman Kodak CompanyInventors: Steven A. Van Slyke, Philip S. Bryan, Frank V. Lovecchio
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Patent number: 5141671Abstract: A blue-emitting luminescent composition is disclosed comprised of an aluminum chelate containing a phenolato ligand and two R.sup.s -8-quinolinolato ligands, where R.sup.s substituents are chosen to block the attachment of more than two substituted 8-quinolinolato ligands to the aluminum atom. The presence of the phenolato ligand shifts emission to the blue region of the spectrum. Emission can be shifted to even shorter blue wavelengths by the incorporation of a pentacarbocyclic aromatic fluorescent dye.Type: GrantFiled: August 1, 1991Date of Patent: August 25, 1992Assignee: Eastman Kodak CompanyInventors: Philip S. Bryan, Frank V. Lovecchio, Steven A. VanSlyke
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Patent number: 5125994Abstract: An adhesive-coated thermoplastic film is stretched and bonded to a three-dimensional substrate by vacuum thermoforming at a lower than normal temperature, at which the film has an elastic modulus of at least 10.sup.9 dynes/cm.sup.2, followed by moderate heat treatment of the resulting laminated article. The procedure is especially useful in avoiding air entrapment and peel-back in the thermoforming of a paint-coated film on exterior body panels for automobiles.Type: GrantFiled: November 1, 1989Date of Patent: June 30, 1992Assignee: Eastman Kodak CompanyInventors: Louis P. Harasta, Newton C. Landis, Gerald G. Reafler
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Patent number: 5126268Abstract: A process is disclosed for the isolation of an enantiomerically enriched alcohol from a first mixture of an enantiomerically enriched 1-arylsulfonate-2 -hydroxy-3-butene and an enantiomerically enriched 1 -arylsulfonate- 2-acyloxy-3-butene. The process includes the steps of:(a) contacting the mixture with a reagent capable of reacting with said 1-arylsulfonate-2-hydroxy-3-butene to remove the arylsulfonate group and produce a mixture of dihydroxybutene monoesters thereby forming a second mixture containing said dihydroxybutene monoesters and unreacted enantiomerically enriched 1-arylsulfonate-2-acyloxy-3-butene(b) contacting the second mixture with reagents capable of hydrolyzing all of the acyl groups in said mixture to hydroxy groups so as to produce a third mixture comprising 1,2-dihydroxy-3-butenes and enantiomerically enriched 1-arylsulfonate-2-hydroxy-3 -butene;(c) washing said third mixture with water so as to remove said 1,2-dihydroxy-3-butenes.Type: GrantFiled: February 26, 1991Date of Patent: June 30, 1992Assignee: Eastman Kodak CompanyInventor: Neil W. Boaz
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Patent number: 5126267Abstract: A process is disclosed for the isolation of an enantiomerically enriched alcohol from a first mixture of an enantiomerically enriched alcohol and an enantiomerically enriched ester. The process includes the steps of:(a) contacting the mixture with a reagent capable of reacting with the hydroxy function of the alcohol, without the loss of optical purity, so as to produce a second mixture containing a base stable derivative of the enantiomerically enriched alcohol and the unreacted ester;(b) contacting the second mixture with a base capable of reacting with the ester so as to produce a third mixture containing a compound more volatile than the base stable derivative of the alcohol;(c) removing the volatile compound from the third mixture; and(d) converting the base stable derivative of the alcohol back to the enantiomerically enriched alcohol, without the loss of optical purity.Type: GrantFiled: February 26, 1991Date of Patent: June 30, 1992Assignee: Eastman Kodak CompanyInventor: Neil W. Boaz
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Patent number: 5118662Abstract: A conductive film of crystalline bismuth mixed alkaline earth oxide containing silver is disclosed. A process for promoting the growth of crystalline bismuth mixed alkaline earth oxide grains by incorporating silver prior to sintering is also disclosed.Type: GrantFiled: July 17, 1991Date of Patent: June 2, 1992Assignee: Eastman Kodak CompanyInventors: John A. Agostinelli, Liang-sun Hung, Jose M. Mir
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Patent number: 5086060Abstract: The effects of acne and psoriasis are relived by applying either topically or by oral adminstration, a compound having the structure: ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4 and R.sub.5 are independently selected from the group consisting of H, Cl, straight or branched alkyl of 1 to 10 carbon atoms, NO.sub.2, COOR.sub.6, CN, OR.sub.6, NR.sub.6 R.sub.7, NR.sub.6 C(.dbd.S)NR.sub.7 R.sub.8, NF.sub.6 COR.sub.7, SO.sub.2 NR.sub.6 R.sub.7, CH(CH.sub.3)COOH, CONR.sub.6 R.sub.7, COR.sub.6, OCONR.sub.6 R.sub.7, NR.sub.6 COONR.sub.7, R.sub.9 OR.sub.6, NR.sub.6 SO.sub.2 R.sub.7, Si(CH.sub.3).sub.3, and NR.sub.6 CONR.sub.7 R.sub.8,R.sub.3 together with R.sub.4 forms a benzo ring or taken together with R.sub.2 forms a benzo or tetrahydrobenzo ring or together with R.sub.2 and R.sub.1 forms a: ##STR2## moiety or together with R.sub.2 forms a ##STR3## moiety or R.sub.2 together with R.sub.1 forms a benzo ring or R.sub.2 together with R.sub.3 forms a ##STR4## moiety, or R.sub.Type: GrantFiled: July 16, 1990Date of Patent: February 4, 1992Assignee: Eastman Kodak CompanyInventors: Neil F. Haley, Xina Nair, Gerard J. Gendimenico, F. Christopher Zusi, R. Thomas Swann
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Patent number: 5078994Abstract: A copolymer microparticle is presented which is derived from at least about 5 weight percent of free carboxylic acid group-containing vinyl monomers, monomers which have a poly(alkylene oxide) appended thereto, oleophilic monomers and other nonionic hydrophilic monomers. Microgels containing these copolymers having a median water swollen diameter of about 0.01 to about 1.0 micrometer are disclosed. Pharmaceutical and diagnostic compositions are disclosed comprising a therapeutic or diagnostic agent and microgels comprising a copolymer derived from at least about 5 weight percent of non-esterified carboxylic acid group-containing vinyl monomers, oleophilic monomers and other nonionic hydrophilic monomers, with the proviso that when the median water swollen diameter of the microgels is 0.1 micrometer or greater, at least 5 weight percent of the monomers have a poly(alkylene oxide) appended thereto.Type: GrantFiled: April 12, 1990Date of Patent: January 7, 1992Assignee: Eastman Kodak CompanyInventors: Mridula Nair, Julia S. Tan
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Patent number: 5068345Abstract: A oxazolidinone aldol adduct having the formula: ##STR1## wherein R is alkyl having 6 or more carbons or aryl; R.sup.1 is alkyl or aryl; R.sup.2 is alkyl, aryl or hydrogen; and X is a halogen atom or an azide. This aldol adduct is useful in a process for making 2-amino-1,3 diols.Type: GrantFiled: October 30, 1989Date of Patent: November 26, 1991Assignee: Eastman Kodak CompanyInventors: Carl R. Illig, Alexander L. Weis
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Patent number: 5055379Abstract: A negative-working photoresist composition comprising, in admixture, (a) dye-loaded or dye-precursor-loaded polymeric particles individually covered with a layer of gelatin that is covalently bonded thereto and (b) a radiation-sensitive dichromate is useful in the preparation of continuous tone dyed imaging elements such as color filter arrays for use in solid state color image sensing devices.Type: GrantFiled: March 19, 1990Date of Patent: October 8, 1991Assignee: Eastman Kodak CompanyInventors: Pranab Bagchi, Raymond F. Reithel, Tsang J. Chen, Steven Evans
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Patent number: 5051340Abstract: A master for the replication of optical elements is prepared by the steps of:(a) focusing an information modulated energy beam on a phase-change optical recording layer so as to form a pattern of two different phases in said layer corresponding to said information; and(b) selectively etching away one of said two different phases so as to form a relief pattern corresponding to said information.The master so made can be used directly as the stamper in the injection molding process or the 2-P process for the replication of optical elements.Type: GrantFiled: June 23, 1989Date of Patent: September 24, 1991Assignee: Eastman Kodak CompanyInventors: Yuan S. Tyan, Kee C. Pan, George R. Olin, Thomas Mayer
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Patent number: 5051280Abstract: A new synthetic method for the production of alkali metal niobates and tantalates is disclosed. The method involves the pyrolysis of a stoichiometric salt of an alkali metal and a niobium or tantalum complex of a bidentate or tridentate ligand. These salts are stable and, since the alkali metal and the niobioum or tantalum are already present in stoichiometric amounts, the resulting material comprises a substantially pure alkali metal niobate or tantalate.Type: GrantFiled: October 1, 1990Date of Patent: September 24, 1991Assignee: Eastman Kodak CompanyInventor: Yann Hung
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Patent number: 5015548Abstract: An optical recording element comprising a thin film optical recording layer of an alloy is disclosed. The alloy is represented by the formula Sb.sub.x Te.sub.1-x, wherein x is between about 0.58 and 0.75. The alloys have short erasure times (amorphous to crystalline transition) and excellent environmental stability.Type: GrantFiled: June 21, 1990Date of Patent: May 14, 1991Assignee: Eastman Kodak CompanyInventors: Kee-Chuan Pan, Yuan-sheng Tyan, Fridrich Vazan
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Patent number: 4983497Abstract: A lithographic printing plate support material comprising an anodized aluminum plate having an anodic layer, a silicate layer in contact with the anodic layer, and a metal salt layer, in contact with the silicate layer, which comprises a metal salt having the formula MX wherein M is a metal selected from the group consisting of zinc, magnesium, nickel, and chromium, and X is an anion selected from the group consisting of acetate, chloride, and borate. A method for preparing the support material comprises the steps of contacting an anodized aluminum plate with a silicating agent and contacting the silicated plate with the above-described metal salt. Lithographic printing plates comprising the above-described support material and a radiation-sensitive layer exhibit improved press sensitivity and extended shelf-life.Type: GrantFiled: April 13, 1987Date of Patent: January 8, 1991Assignee: Eastman Kodak CompanyInventors: Richard E. Gilson, Gary R. Miller
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Patent number: 4980262Abstract: A photographic contact printing process is disclosed having application in the mass production of replicate video discs from a master disc, and other applications wherein it is desired to replicate micro-detail over a relatively large area. A problem with conventional contact printing from a mask to a photographic medium is one of maintaining intimate contact over a relatively large area since dust, dirt, etc., are almost impossible to completely eliminate in any practical manner. In accordance with the present invention, a contact printing process is provided wherein intimate contact is not necessary for making high quality contact prints. The present invention recognizes that in contact printing information from a master disc to a replicate disc, the contact printing process is significantly less sensitive to imperfect contact between the master disc and the replicate disc if one employs a replicate disc comprising a photosensitive material having a certain optical properties.Type: GrantFiled: August 29, 1979Date of Patent: December 25, 1990Assignee: Eastman Kodak CompanyInventors: Harold T. Thomas, Dennis G. Howe
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Patent number: 4977523Abstract: There are disclosed a method and an apparatus for the measurement of the ice content of snow. Ice content is directly related to the quality of the snow. The method comprises the steps of measuring the weight of ice in the sample by:(1) placing a sample of the snow to be measured in a sample chamber;(2) heating said sample chamber and measuring the heat supplied while measuring its temperature; and(3) calculating the weight of the ice in the sample from the measurements in step (2),and then dividing the weight of the ice in the sample by the total weight of the sample to obtain a value for the snow quality. There is also provided an apparatus for carrying out the described method. The apparatus includes an insulated sample chamber including provision for heating and temperature sensing. The sample chamber is detachably connected to a microprocessor based instrument which controls the heating of the chamber and calculates the ice content from the heat supplied and temperature measurements.Type: GrantFiled: January 6, 1989Date of Patent: December 11, 1990Assignee: Eastman Kodak CompanyInventors: Robert D. Mohler, James C. Liao