Patents by Inventor David M. Teegarden
David M. Teegarden 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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Publication number: 20020094418Abstract: An ink jet recording element comprising a support having thereon in order:Type: ApplicationFiled: November 30, 2000Publication date: July 18, 2002Applicant: Eastman Kodak CompanyInventors: Christine J. Landry-Coltrain, David M. Teegarden
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Patent number: 6420102Abstract: Thermographic and photothermographic materials comprise a barrier layer to provide physical protection and to prevent migration of diffusible imaging components and by-products resulting from high temperature imaging and/or development. The barrier layer comprises a film-forming acrylic or methacrylic acid ester or amide polymer(s) that has a molecular weight of at least 8000 g/mole and comprises hydroxy functionality in from about 15 to 100 mole % of the acrylic or methacrylic acid ester or amide recurring units. This barrier layer is capable of retarding diffusion of mobile chemicals such as fatty carboxylic acids, developers, and toners. This barrier layer can also include at least one other film-forming polymer to provide a clear and scratch-resistant surface.Type: GrantFiled: July 27, 2001Date of Patent: July 16, 2002Assignee: Eastman Kodak CompanyInventors: Charles L. Bauer, Michelle L. Horch, Anne M. Miller, David M. Teegarden, Bryan V. Hunt, Kumars Sakizadeh
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Patent number: 6364476Abstract: An ink jet printing process for improving the dye density and fixability of an ink jet image comprising: a) providing an ink jet recording element including a support having thereon an image-recording layer including a mixture of an anionic, addition polymer and a hydrophilic polymer; and b) applying droplets of a liquid ink on the image-recording layer in an image-wise manner, the ink including water, humectant and a water-soluble cationic or basic dye.Type: GrantFiled: May 8, 2000Date of Patent: April 2, 2002Assignee: Eastman Kodak CompanyInventors: Kristine B. Lawrence, Steven Evans, Csaba A. Kovacs, David M. Teegarden
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Patent number: 6350561Abstract: Thermographic and photothermographic materials comprise a surface barrier layer to provide physical protection and to prevent migration of diffusible imaging components and by-products resulting from high temperature development. The barrier layer comprises a film-forming acrylate or methacrylate polymer(s) that has a molecular weight of at least 8000 g/mole and comprises epoxy functionality and is capable of retarding diffusion of mobile chemicals such as fatty acids. This polymer is preferably present in admixture with at least one other film-forming polymer to provide a clear and scratch-resistance surface film.Type: GrantFiled: December 1, 2000Date of Patent: February 26, 2002Assignee: Eastman Kodak CompanyInventors: Anne M. Miller, Michelle L. Horch, Charles L. Bauer, David M. Teegarden
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Patent number: 6274298Abstract: The present invention is directed to a photographic element comprising a support, at least one silver halide emulsion layer superposed on the support, and a processing-solution-permeable protective overcoat overlying the silver halide emulsion layer. The processing solution permeable overcoat is composed of a polyester ionomer. The present invention is also directed to a method of making a photographic print involving developing the photographic element. The imaged photographic element exhibits water, stain, and wet-abrasion resistance.Type: GrantFiled: June 7, 2000Date of Patent: August 14, 2001Assignee: Eastman Kodak CompanyInventors: Mridula Nair, Tamara K. Jones, Joseph S. Sedita, David M. Teegarden, Bobbi A. Wohlschlegel
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Patent number: 6235459Abstract: An imaging support element comprising a polymeric film support and a thermally stable single subbing layer is made by forming a coating over the polymeric film support, the coating having a surface including amine reactive groups in a density of at least 1010 per cm2 and then heat treating the polymeric film support with the coating thereon at a temperature in the range of from about 50° C. below the glass transition temperature (Tg) of the polymeric support up to the glass transition temperature (Tg) of the polymeric support. The polymeric film support is nitrogen plasma treated. The layer is preferably formed by coating a monomer solution on the nitrogen plasma treated polymer support wherein the coated monomer has at least two vinyl sulfone groups which provide the amine reactive groups. Alternatively, the layer may be formed by applying to the polymeric support web a coating including at least one non-amine reactive comonomer and at least one comonomer having amine reactive side groups.Type: GrantFiled: December 20, 1999Date of Patent: May 22, 2001Assignee: Eastman Kodak CompanyInventors: Jeremy M. Grace, Louis J. Gerenser, Wayne A. Bowman, Elizabeth G. Burns, Richard A. Castle, David M. Teegarden
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Patent number: 6190842Abstract: An imaging support element comprising a polymeric film support and a thermally stable single subbing layer is made by forming a coating over the polymeric film support, the coating having a surface including amine reactive groups in a density of at least 1010 per cm2 and then heat treating the polymeric film support with the coating thereon at a temperature in the range of from about 50° C. below the glass transition temperature (Tg) of the polymeric support up to the glass transition temperature (Tg) of the polymeric support. The polymeric film support is nitrogen plasma treated. The layer is formed by applying to the polymeric support web a coating including at least one non-amine reactive comonomer and at least one comonomer having amine reactive side groups.Type: GrantFiled: December 20, 1999Date of Patent: February 20, 2001Assignee: Eastman Kodak CompanyInventors: Jeremy M. Grace, Louis J. Gerenser, Wayne A. Bowman, Elizabeth G. Burns, Richard A. Castle, David M. Teegarden
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Patent number: 5895724Abstract: The present invention is recyclable photographic film base which includes a cellulose acetate support. An antistatic layer is superposed on one side of the support and includes an antistatic agent. A barrier layer comprising a polymeric composition having a glass transition temperature of less than 90.degree. C. overlies the antistatic layer. In a preferred embodiment the polymeric composition of the barrier layer in poly(isobutyl methacrylate).Type: GrantFiled: January 28, 1997Date of Patent: April 20, 1999Assignee: Eastman Kodak CompanyInventors: David M. Teegarden, Raymond T. Jones, Hans R. Grashof
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Patent number: 5766836Abstract: The present invention discloses a three layer backing system for a photographic element. The backing system in on the opposite side of the light-sensitive layer. The backing system includes a first antistatic layer having an antistatic agent. The backing system includes a barrier layer of a polymer. The overcoat layer, farthest from the support, includes cellulose acetate and cellulose nitrate in a ratio range of from 3:1 to 1:1 and from 5 to 40 percent perfluorinatied polymer particles.Type: GrantFiled: January 28, 1997Date of Patent: June 16, 1998Assignee: Eastman Kodak CompanyInventors: Raymond T. Jones, David M. Teegarden, John M. Fukushima, Ronald M. Stimson
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Patent number: 5384192Abstract: A structure comprising an inorganic oxide substrate having thereon an organic polymer layer, characterized in that interposed between the substrate and the organic polymer layer there is an adhesion promoting layer of a block or graft copolymer, one component of which is compatible with the organic polymer and a second of which is a poly(vinyl phenol) component that is capable of hydrogen bonding with the inorganic oxide substrate is disclosed. In preferred embodiments, the substrate is a semiconductor material and the adhesion promoter facilitates the adhesion of a photoresist or protective coating.Type: GrantFiled: March 11, 1993Date of Patent: January 24, 1995Assignee: Eastman Kodak CompanyInventors: Timothy E. Long, Bradley K. Coltrain, David M. Teegarden
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Patent number: 5306774Abstract: A miscible blend comprising (a) a poly(alkylene oxide) vinyl carboxylic ester polymer and (b) a polymer bearing acidic functional groups has been discovered, with the blend being employable as a protective coating, membrane or film exhibiting good mechanical stablility and chemical resistance.Type: GrantFiled: December 2, 1991Date of Patent: April 26, 1994Assignee: Eastman Kodak CompanyInventors: Christine J. T. Landry, David M. Teegarden, Bradley K. Coltrain, Wayne T. Ferrar
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Patent number: 5302662Abstract: Novel blends have been discovered comprising: (A) a polyamide; (B) a polymer that is miscible with polystrene; and (C) a compatibilizer comprising a copolymer having repeating units derived from an aromatic vinyl compound monomer and repeating units derived from vinylphenol monomers, wherein at least about 50% of said aromatic vinyl compound monomers are styrene monomeric units. The blends show improvements in mechanical properties as compared to similar blends without the compatibilizer.Type: GrantFiled: February 19, 1993Date of Patent: April 12, 1994Assignee: Eastman Kodak CompanyInventors: Christine J. Landry, Dennis J. Massa, Timothy E. Long, Michael R. Landry, David M. Teegarden, Ralph H. Colby
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Patent number: 5302637Abstract: There are provided novel miscible blend compositions comprising (a) a cellulose ester and (b) a vinylphenol containing polymer. The blends do not exhibit large scale phase separation and provide properties which are essentially intermediate between those of either cellulose ester or vinylphenol containing polymers. The blends are useful for both molded and film applications as well as for coatings.Type: GrantFiled: July 22, 1992Date of Patent: April 12, 1994Assignee: Eastman Kodak CompanyInventors: Christine J. T. Landry, David M. Teegarden, Kevin J. Edgar, Stephen S. Kelley
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Patent number: 5276089Abstract: There is disclosed a blend of certain polyesters and polymers that are miscible with polystyrene, such as polyphenylene oxide. The blend is characterized by the presence of a compatibilizing amount of a copolymer having repeating units derived from an aromatic vinyl compound monomer and a vinylphenol monomer. The polyester is thermoplastic and is characterized in that the diacid component of the polyester includes aromatic groups and the diol component comprises at least about 20 percent by weight of a noncyclic, aliphatic diol.Type: GrantFiled: August 26, 1991Date of Patent: January 4, 1994Assignee: Eastman Kodak CompanyInventors: Ralph H. Colby, Christine J. T. Landry, Michael R. Landry, Timothy E. Long, Dennis J. Massa, David M. Teegarden
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Patent number: 5250624Abstract: A miscible blend composition comprising (a) a polyamide having a melting point greater than about 175.degree. C. or is amorphous and (b) a vinylphenol containing polymer. The blend is particularly useful for packaging applications due to its chemical resistance and clarity.Type: GrantFiled: May 7, 1992Date of Patent: October 5, 1993Assignee: Eastman Kodak CompanyInventors: David M. Teegarden, Christine J. T. Landry, Michael R. Landry, Timothy E. Long, Dennis J. Massa, Ralph H. Colby
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Patent number: 5250626Abstract: There are disclosed miscible blends of etheric polyphosphazenes and polymers bearing acidic functional groups such as poly(vinylphenol) or polymers containing acrylic acid.Type: GrantFiled: November 8, 1990Date of Patent: October 5, 1993Assignee: Eastman Kodak CompanyInventors: Christine J. T. Landry, Wayne T. Ferrar, David M. Teegarden
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Patent number: 5241038Abstract: A process for the preparation of aromatic imide sulfide polymers and polymers produced. In the process, elemental sulfur is reacted with a compound having the general formula ##STR1## wherein Z.sup.1 is a direct link and Z.sup.2 is H, or Z.sup.1 has the general structure ##STR2## or Z.sup.1 and Z.sup.2 together complete a moiety having the general structure ##STR3## n= 0-4 . R.sup.1 is substituted or unsubstituted: aryl or heteroaryl. ##STR4## which R.sup.3 is an independently selected aryl group, m is an integer from 1 to 12, and j is an integer from 0 to 300.Type: GrantFiled: September 3, 1991Date of Patent: August 31, 1993Assignee: Eastman Kodak CompanyInventors: David M. Teegarden, Robert J. Perry, S. Richard Turner, David R. Fagerburg
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Patent number: 4997894Abstract: Block copolymers of vinyl monomers and thioarylene segments are prepared from copoly(arylene sulfide-disulfides), i.e., copoly(arylene sulfides) having an appreciable quantity of disulfide linkages in the polymer chains. Such copoly(arylene sulfides) correspond to the structure [(--A--S--).sub.1-x (A--S--S--).sub.x ].sub.n, wherein X is in the range of 0.5 to 0.001 based on the combined number of (--A--S--) and (A--S--S--) units. In a preferred embodiment n is at least 200; however, polymers and prepolymers having a much lower degree of polymerization can be used, e.g., materials where n is about 25 or higher. To prepare the block copolymers, an unsaturated monomer capable of undergoing free radical addition polymerization under the reaction conditions employed is subjected to such polymerization in the presence of the copoly(arylene sulfide-disulfide) having the above formula. During the course of the polymerization, chain transfer occurs resulting in formation of the block copolymers.Type: GrantFiled: February 8, 1990Date of Patent: March 5, 1991Assignee: Eastman Kodak CompanyInventor: David M. Teegarden
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Patent number: 4592989Abstract: Disclosed is an electrostatic toner composition comprised of resin particles, pigment particles, and a complex of a dipolar molecule or salt attached to an ionophoric polymer.Type: GrantFiled: April 12, 1985Date of Patent: June 3, 1986Assignee: Xerox CorporationInventors: Thomas W. Smith, David M. Teegarden, Kathleen M. McGrane, David J. Luca