Eastman-kodak Company

Nitto-denko Corporation

William J Gamble

Andrius A Naujokas

Walter T Gurney

Franklin C Brayer

Bruce R DeBruin

James F Elman

Roland J Koestner

Joseph Lawrence Lippert

Daniel F Hurley

Dennis E Smith

Thomas M Laney

Timothy C Schunk

John E Benson

Brian L Simpson

Linda S Flosenzier

Craig T Mollon

Walter E Toot, Jr

A method of fabricating a polymeric film includes adsorbing an ammonium salt surfactant over a plurality of polymer beads. The method also includes adding the polymer beads to a polymer solution, wherein the ammonium salt surfactant substantially prevents flocculation of the polymer beads. Additionally, a polymeric film includes a plurality of polymer beads each having an outer surface. The polymeric film also includes an ammonium salt surfactant disposed over each of the outer surfaces, wherein the ammonium salt surfactant substantially prevents flocculation of the polymer beads.

Method of manufacture of a polymeric film with anti-blocking properties

A multilayer compensator includes one or more polymeric first layers and one or more polymeric second layers. The first layers comprise a polymer having an out-of-plane (&#x394;n) birefringence not more negative than &#x2212;0.01 and not more positive than +0.01. The second layers comprise an amorphous polymer having an out-of-plane birefringence more negative than &#x2212;0.01 or more positive than +0.01. An overall in-plane retardation (R) of the multilayer compensator is greater than 20 nm and the out-of-plane retardation (R) of the multilayer compensator is more negative than &#x2212;20 nm or more positive than +20 nm. The in-plane retardation (Rin) of the one or more first layers is 30% or less of the overall in-plane retardation (Rin) of the multilayer compensator.

Multilayer optical compensator, liquid crystal display, and process

A multilayer compensator includes one or more polymeric first layers and one or more polymeric second layers. The first layers comprise a polymer having an out-of-plane (&#x394;n) birefringence not more negative than &#x2212;0.01 or not more positive than +0.01. The second layers comprise an amorphous polymer having an out-of-plane birefringence more negative than &#x2212;0.01 or more positive than +0.01. An overall in-plane retardation (R) of the multilayer compensator is greater than 20 nm and the out-of-plane retardation (R) of the multilayer compensator is more negative than &#x2212;20 nm or more positive than +20 nm. The in-plane retardation (Rin) of the one or more first layers is 30% or less of the overall in-plane retardation (Rin) of the multilayer compensator.

Disclosed is an integral film comprising a transparent polymeric substrate having a surface bearing polymeric beads, wherein the swell ratio, the size, and the laydown of the beads are selected so as to provide both a one sided static friction coefficient of not more than 0.68 and an internal haze value of not more than 0.1. The film provides an improved combination of slip and optical properties.

Cellulose film with anti-blocking properties

Disclosed is a coextruded film comprising a transparent polymeric inner core layer of thickness less than 250 &mgr;m and two peelable outer polymeric layers wherein the inner layer constitutes a low enough proportion, less than 40%, of the total film thickness and exhibits a low enough melt flow index value to achieve a birefringence of not more than 1&times;10 nm/nm.

Low birefringence film

Disclosed is a triacetyl cellulose film comprising (a) an unsubstituted triphenyl phosphate compound and (b) a lower alkyl-substituted triphenyl phosphate ester compound. Such a film exhibits a reduced rate of water vapor transmission.

Triacetyl cellulose film with reduced water transmission property

Disclosed is a triacetyl cellulose film comprising (a) a triphenyl monophosphate compound and (b) an aromatic polyol-bridged polyphosphate compound. Such a film exhibits a reduced rate of water vapor transmission.

A powdered, uniformly mixed photographic processing composition is prepared with intense mixing of dry photoprocessing chemical components, and by forming uniformly sized agglomerates of the mixed powder. During agglomeration, a solution of a binder material is applied in a controlled manner to enable the mixed powder particles to stick together but without leaving much residue in the final composition. With this process, the mixed powder and agglomerates each have desired uniformity in size and chemical composition. The resulting dry uniformly mixed composition is highly stable, dissolvable and substantially free of dust.

Uniformly mixed dry photographic processing composition

A powdered, uniformly mixed photographic developing composition is prepared with intense mixing of dry photoprocessing chemical components, one of which is a photographic developing agent, and by forming uniformly sized agglomerates of the mixed powder. During agglomeration, a solution of a binder material is applied in a controlled manner to enable the mixed powder particles to stick together but without leaving much residue in the final composition. With this process, the mixed powder and agglomerates each have desired uniformity in size and chemical composition. The resulting dry uniformly mixed developer composition is highly stable, dissolvable and substantially free of dust. An antioxidant is also applied to the dry uniform mixture during agglomeration to reduce the loss of developing agent activity.

Uniformly mixed dry photographic developing composition containing

A powdered, uniformly-mixed photographic processing composition is prepared with intense mixing of dry photoprocessing chemical components, and by forming uniformly sized agglomerates of the mixed powder. During agglomeration, a hot melt binder polymer is applied in a controlled manner to enable the uniformly-mixed powder particles to stick together with little residue in the final composition. With this process, the mixed powder and agglomerates each have the desired uniformity in size and chemical composition. The resulting dry composition is highly stable, dissolvable and substantially free of dust.

Uniformly mixed dry photographic processing composition using hot melt

Uniformly mixed dry photographic processing composition and method of

Method of making uniformly mixed dry photographic processing composition

There is described a process and apparatus for the depolymerization of polyester resins, such as polyethylene terephthalate into component monomers using a countercurrent or crossflow reactor.

Recovery of components from polyester resins

There is described a process for removing dimethyl terephthalate contaminants from ethylene glycol. The process comprises distilling ethylene glycol in the presence of an ester exchange catalyst to cause reaction between ethylene glycol and dimethyl terephthalate to form compounds that are less volatile than either ethylene glycol or dimethyl terephthalate, such as bishydroxyethyl terephthalate.

Growing community of inventors

Rochester, NY, United States of America

William J Gamble