Patents by Inventor Kenneth L. Tingler
Kenneth L. Tingler 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: 6355406Abstract: A process for forming an abrasion-resistant antistatic layer for an imaging element comprises: adjusting the pH of an aqueous composition of an electronically-conductive polymer to a pH of about 3 to about 10, and combining the pH-adjusted aqueous composition of the electronically-conductive polymer with an aqueous composition at a pH greater than 7 of a polyurethane film-forming binder having a tensile elongation to break of at least 50% and a Young's modulus measured at 2% elongation of at least 50000 psi. The process further comprises applying the resulting coating composition to the imaging element, thereby forming an abrasion-resistant antistatic layer on the element. The antistatic layer coating composition of the present invention can be applied to a wide variety of imaging elements, including, for example, photographic, electrostatographic, photothermographic, migration, electrothermographic, dielectric recording and thermal-dye-transfer imaging elements.Type: GrantFiled: December 12, 2000Date of Patent: March 12, 2002Assignee: Eastman Kodak CompanyInventors: Debasis Majumdar, Dennis J. Eichorst, Kenneth L. Tingler
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Publication number: 20010016303Abstract: A process for forming an abrasion-resistant antistatic layer for an imaging element comprises: adjusting the pH of an aqueous composition of an electronically-conductive polymer to a pH of about 3 to about 10, and combining the pH-adjusted aqueous composition of the electronically-conductive polymer with an aqueous composition at a pH greater than 7 of a polyurethane film-forming binder having a tensile elongation to break of at least 50% and a Young's modulus measured at 2% elongation of at least 50000 psi. The process further comprises applying the resulting coating composition to the imaging element, thereby forming an abrasion-resistant antistatic layer on the element. The antistatic layer coating composition of the present invention can be applied to a wide variety of imaging elements, including, for example, photographic, electrostatographic, photothermographic, migration, electrothermographic, dielectric recording and thermal-dye-transfer imaging elements.Type: ApplicationFiled: December 12, 2000Publication date: August 23, 2001Inventors: Debasis Majumdar, Dennis J. Eichorst, Kenneth L. Tingler
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Patent number: 6190846Abstract: The present invention is an imaging element which includes a support, an image-forming layer superposed on the support and an electrically-conductive layer superposed on the support. The electrically-conductive layer is composed of an electrically-conductive polymer and a polyurethane film-forming binder having a tensile elongation to break of at least 50% and a Young's modulus measured at 2% elongation of at least 50000 psi.Type: GrantFiled: October 15, 1998Date of Patent: February 20, 2001Assignee: Eastman Kodak CompanyInventors: Debasis Majumdar, Dennis J. Eichorst, Kenneth L. Tingler
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Patent number: 6096491Abstract: The present invention is an imaging element which includes a support, an image-forming layer superposed on the support, an electrically-conductive layer superposed on the support and a protective topcoat overlying the electrically-conductive layer. The electrically-conductive layer contains an electrically-conductive polymer and has a water electrode resistivity (WER) value that is substantially unchanged upon subjecting of the imaging element to color photographic processing. The protective topcoat is composed of a polyurethane film-forming binder having a tensile elongation to break of at least 50% and a Young's modulus measured at 2% elongation of at least 50000 psi.Type: GrantFiled: October 15, 1998Date of Patent: August 1, 2000Assignee: Eastman Kodak CompanyInventors: Debasis Majumdar, Dennis J. Eichorst, Kenneth L. Tingler
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Patent number: 6043015Abstract: An imaging element is described comprising a support material having thereon at least one image-forming layer and at least one layer coated from a composition containing a dispersion of aqueous dispersible polyurethane polymer particles dispersed in a continuous liquid phase comprising primarily water-miscible organic solvent. A coating composition for coating a polyurethane layer on a moving film support is also described comprising a dispersion of aqueous dispersible polyurethane polymer particles dispersed in a continuous liquid phase comprising primarily water-miscible organic solvent, said composition having a concentration of from 0.1 to 20 wt percent total solids and a viscosity of from 0.5 to 50 centipoise. The coating compositions in accordance with this invention have unique coating rheologies and provide layers for imaging elements having excellent film forming and physical and mechanical properties.Type: GrantFiled: December 1, 1998Date of Patent: March 28, 2000Assignee: Eastman Kodak CompanyInventors: Kenneth L. Tingler, Charles C. Anderson
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Patent number: 6043014Abstract: An imaging element comprises a support material having thereon at least one image-forming layer, an electrically-conductive layer and protective overcoat layer that overlies the electrically-conductive layer. The protective overcoat layer is coated from a composition containing a polyurethane dispersed in liquid organic medium. The overcoat layer coating compositions used in accordance with this invention have unique coating rheologies, excellent dispersion stability, and provide dried layers that have excellent film forming and physical and mechanical properties and prevent the loss of antistatic properties during the use and processing of the imaging element.Type: GrantFiled: December 1, 1998Date of Patent: March 28, 2000Assignee: Eastman Kodak CompanyInventors: Kenneth L. Tingler, Charles C. Anderson
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Patent number: 5804360Abstract: The present invention is an imaging element including a support, an image-forming layer and at one least layer having been formed by the coating and subsequent drying of a coating composition. The coating composition is an aqueous medium having therein a polyurethane/vinyl polymer dispersion formed by free radical polymerization of a vinyl monomer in the presence of an aqueous polyurethane dispersion.Type: GrantFiled: May 12, 1997Date of Patent: September 8, 1998Assignee: Eastman Kodak CompanyInventors: Brian A. Schell, Charles C. Anderson, Kenneth L. Tingler, Yongcai Wang
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Patent number: 5786134Abstract: This invention relates to a motion picture print film having a support and having, in order, on one side thereof an antihalation undercoat and at least one silver halide emulsion layer and having, in order, on the opposite side thereof an antistatic layer, a protective overcoat; characterized in that said protective overcoat includes a polyurethane binder and the polyurethane binder has a tensile elongation to break of at least 50% and a Young's modulus measured at a 2% elongation of at least 50000 lb/in, and a topcoat farthest from the support which includes a hydrophilic binder at a weight percent of at least 20.Type: GrantFiled: May 15, 1997Date of Patent: July 28, 1998Assignee: Eastman Kodak CompanyInventors: Mridula Nair, Kenneth L. Tingler, Gustav R. Apai, II, Frank A. Pettrone
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Patent number: 5491051Abstract: A photographic element comprising a support having provided thereon a light-sensitive layer and a transparent magnetic recording layer, the magnetic recording layer comprising a transparent polymeric binder, ferro-magnetic particles and abrasive particles, the magnetic particles having a surface area greater than 30 m.sup.2 /gm and a coverage of from about 1.times.10.sup.-11 mg/.mu.m.sup.3 to about 1.times.10.sup.-10 mg/.mu.m.sup.3, the abrasive particles having a median diameter of from about 0.2 to about 0.4 .mu.m, specific surface area greater than 5 m.sup.2 /gm, a Mohs hardness of at least 6 and being present in the transparent magnetic layer in an amount of at least about 30% by weight based on the weight of the magnetic particles present.Type: GrantFiled: February 23, 1995Date of Patent: February 13, 1996Assignee: Eastman Kodak CompanyInventors: John F. DeCory, Robert O. James, Kenneth L. Tingler, Ronald M. Wexler
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Patent number: 5360706Abstract: Imaging elements comprising a support, at least one imaging layer and an antistat layer, said antistat layer comprising vanadium pentoxide in a binder, said binder being a polyesteranionomer and coating compositions for forming such antistat layers.Type: GrantFiled: November 23, 1993Date of Patent: November 1, 1994Assignee: Eastman Kodak CompanyInventors: Charles C. Anderson, Gerald M. Leszyk, Kenneth L. Tingler
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Patent number: 4193803Abstract: Disclosed herein are heat-activatable adhesive compositions comprising an amorphous condensation polymer which is characterized by having an acid component comprising a phthalic acid derivative and a glycol component comprising from about 15 to about 85 mole percent of (1) a linear aliphatic glycol having the structure HO--R--H wherein R is either: ##STR1## or --CH.sub.2 CH.sub.2 O--.sub.n wherein n is an integer from 2 to 4; and from about 85 to about 15 mole percent of (2) a branched aliphatic glycol having the structure: ##STR2## wherein R.sup.1 and R.sup.2 are alkyl. These polyester adhesives are further characterized as being soluble in halogenated solvents, having glass transition temperatures within the range of about -30.degree. C. to about 50.degree. C., and having high bonding strengths at elevated temperatures. They have been found useful in a variety of photographic materials, and particularly in photographic film units.Type: GrantFiled: June 12, 1978Date of Patent: March 18, 1980Assignee: Eastman Kodak CompanyInventors: Mohammad A. Sandhu, Kenneth L. Tingler