Eastman-kodak Company

Nitto-denko Corporation

Janglin Chen

Yongcai Wang

Jeremy M Grace

Richard Allen Castle

Louis J Gerenser

David A Glocker

Charles Chester Anderson

Debasis Majumdar

Wayne Thomas Ferrar

Dwight W Schwark

Edgar E Riecke

James E Kelly

Akemi S Marshall

Charles Leo Bauer

Tomohiro Ishikawa

James Lee Bello

Timothy C Schunk

Timothy J Hubert

Hans R Grashof

James Plakunov

Hwei-Ling Yau

Xiang-Dong Mi

Robert O James

YuanQiao Rao

Ian M Newington

Gerald G Reafler

Kenneth G Harbison

Mark M Romach

Vito A DePalma

John M Higgins

Harjit Singh Bhambra

Gregory William Keyes

Evelio A Perez-Albuerne

Billy R Dotson

Richard C Soper

John F DeCory

Melinda Gay Messick

Karen E Gleasman

Nanocomposite films having controlled dispersion, in out-of-plane birefringence, or equivalent retardation are obtained, including films having essentially flat dispersion behavior, reverse dispersion behavior, and non-birefringence dispersion. The nanocomposite comprises film comprises metallic oxide nanoparticles dispersed in a polymer matrix. The present invention also provides a novel method for making and controlling the out-of-plane birefringence dispersion of a film using an organic-inorganic nanocomposite. The nanocomposite material exhibits high optical transmittance, low haze, and is useful in the field of liquid-crystal displays.

Control of birefringence dispersion utilizing nanocomposites

The invention generally relates to polymer films used as protective cover sheets for polarizer plates, a method for producing polarizing plates, and a Liquid Crystal Display employing the same. More particularly, the invention relates to cover sheet composites having a removable, carrier substrate and, optionally, a strippable, protection layer that protects the cover sheet from abrasion and dirt during the manufacture of the cover sheet and polarizer plates.

Guarded cover film for LCD polarizers

The invention generally relates to polymer films used as protective cover sheets for polarizer plates, a method for producing polarizing plates, and a Liquid Crystal Display employing the same. More particularly, the invention relates to a cover sheet composite having a removable, carrier substrate and a cover sheet comprising a low birefringence polymer film and a layer that promotes adhesion to polyvinyl alcohol on the same side of the carrier substrate as the low birefringence polymer film. The guarded cover sheet of the invention is less susceptible to defects due to dirt and abrasion during the manufacture of the cover sheet and polarizer plates. In addition, the cover sheet has excellent adhesion to polyvinyl alcohol-containing dichroic films and eliminates the need to alkali treat the cover sheet prior to lamination to the dichroic films.

Polarizer guarded cover sheet with adhesion promoter

The present invention provides a planographic printing element suitable to receive and bond with a subsequently applied hydrophilic layer comprises a substrate layer, such as polyester film or paper, having coated thereon an adhesion layer, said adhesion layer comprising a polymer having a glass transition temperature of less than 15C and containing functional groups such as hydroxyl, epoxy or glycidyl groups capable of reacting with the hydrophilic layer. The polymer may be a terpolymer of a hydroxyalkyl methacrylate, an alkyl acrylate and an aminoalkyl methacrylate. The polymer may be mixed with gelatin and the mixture applied to the substrate as a coating. The hydrophilic layer, which may comprise metal oxide particles, such as aluminium oxide and/or titanium dioxide particles in a sodium silicate binder, is subsequently applied as a coating to the adhesion layer.

Adhesion promoting polymeric materials and planographic printing elements containing them

A composition for an antistat layer comprising: a chlorinated polyolefin; a conductive agent; and a solvent.

Composition for antistat layer

An imaging element comprising: a support; at least one image forming layer; and an antistat layer, wherein said antistat layer comprises: a chlorinated polyolefin and a conductive agent.

Element with antistat layer

Disclosed is an optical compensation film for improves viewing angle of twisted nematic liquid crystal display, especially in the vertical viewing direction. The said optical compensation film contains a positively birefringent material oriented with its optic axis tilted in a plane perpendicular to the film plane, wherein the phase retardation value defined by (ne-no)d is 100&plusmn;20 nm at the wavelength of 550 nm and the average tilt angle relative to the film plane is 10&plusmn;5&deg;, where ne and no are the extraordinary and ordinary refractive indices, respectively, and d, the thickness of the birefringent material.

Compensation films for liquid crystal displays

Amine modified gelatin layer for improved adhesion of photographic elements after annealing

The present invention relates to a polymer particle having a wax phase and a second phase. The wax phase includes a wax having a melting point of greater than 30&deg; C. and comprising greater than 80% by weight of the wax phase. The second phase, free of ionic charge groups, includes a mono-alpha, beta-ethylenically unsaturated monomer free of ionic charge groups capable of addition polymerization to form a water soluble homopolymer including from 1 to 40% by weight of the second phase and a mono-alpha, beta-ethylenically unsaturated monomer capable of addition polymerization to form a water insoluble homopolymer.

Non-aqueous composite wax particle dispersion

The present invention is an imaging element which includes a support, an image forming layer superposed on the support; and at least one layer superposed on the support. The at least one layer superposed on the support is formed from a non-aqueous coating composition of a composite wax particle composed of a wax phase and a non-crosslinked polymer phase and an organic solvent. The wax phase includes a wax having a melting point of greater than 30&deg; C. The wax comprises greater than 80% by weight of the wax phase. The wax phase to non-crosslinked polymer phase ratio is greater than 30/70 and less than 90/10.

Imaging elements

The present invention is an imaging element which includes a support, an image forming layer superposed on the support and at least one layer superposed on the support. The at least one layer is formed from a non-aqueous coating composition composed of a composite wax particle having a wax phase and a non-crosslinked polymer phase. The wax phase includes a wax having a melting point of greater than 30&deg; C., the wax comprising greater than 80% by weight of the wax phase. The at least one layer has a dry coating weight of from 1 to 300 mg/m,.

Imaging element

The present invention is a photographic element containing a support, at least one light sensitive emulsion layer superposed on the first side of the support, and an outermost lubricant layer superposed on the support. The outermost layer includes more than 80 percent by weight of a composite wax particle. The composite wax particle includes a wax phase and a non-crosslinked polymer phase. The wax phase is greater than 80 percent by weight of a wax which has a melting point of greater than 30&deg; C. In one embodiment the lubricant layer contains a fluoro containing compound. It is envisioned that the lubricant layer overlies a transparent magnetic layer. The total coating weight of the composite wax particle in the lubricant layer is in the range of from 1 to 300 mg/m,. Preferably, the fluoro compound contains at least one type of an ionic group or a nonionic group.

Silver halide photographic elements

The present invention is a photographic element which includes a support having a first side and a second side, at least one light sensitive emulsion layer superposed on the first side of the support, a transparent magnetic layer superposed on the second side of the support. The transparent magnetic layer includes magnetic particles and a film forming binder. An outermost abrasive lubricant layer overlies the transparent magnetic layer. The outermost abrasive lubricant layer is formed from a non-aqueous coating composition of a composite wax particle, an abrasive particle and an organic solvent. The composite wax particle is composed of a wax phase having a wax having a melting point of greater than 30.degree. C. the wax being greater than 80% by weight of the wax phase and a non-crosslinked polymer phase free of chemically bonded acid groups.

Abrasive lubricant layer for photographic element

A support for an imaging element is described, which support comprises a polyester polymeric film having coated thereon a subbing layer comprising gelatin and a multi-hydric organic compound having at least three hydroxyl groups, which gelatin subbing layer coated support has been subjected to a heat treatment to reduce the core-set curling tendency of the polymeric film. Imaging elements for use in an image-forming process is also described, which elements comprise a gelatin subbing layer coated polyester polymeric film support as described above, and an image-forming layer coated on the subbed support. A method for forming a heat-tempered, gelatin-subbed support for an imaging element is also described, comprising coating a subbing layer comprising gelatin and a multi-hydric organic compound having at least three hydroxyl groups on a polyester polymeric film, and subjected the coated film to heat treatment to reduce the core-set curling tendency of the polymeric film. In accordance with preferred embodiment of the invention, the polymer film comprises poly(ethylene naphthalate), the multi-hydric organic compound comprises glycerol, sorbitol, or pentaerythritol, and the heat treatment comprises subjecting the gelatin subbing layer coated support to a temperature of from 50.degree. C. up to the glass transition temperature of the polymeric film for from 0.1 to 1500 hours.

Thermally stable subbing layer for imaging elements

Growing community of inventors

Rochester, NY, United States of America

Janglin Chen