Patents Represented by Attorney Mark A. Montgomery

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  • Polyolefin, rubber and eva-maleic anhydride terpolymer blend
    Patent number: 5198497
    Abstract: Dynamically vulcanized multi-component polymer blends are prepared containing thermoplastic polyolefins, non-vulcanized rubber, and ethylene-vinyl acetate-maleic anhydride terpolymer crosslinked in situ. The dynamically vulcanized blend is prepared from a crosslinkable composition containing thermoplastic polyolefin, rubber, non-crosslinked ethylene-vinyl acetate-maleic anhydride terpolymer, epoxy, and tertiary amine. The crosslinkable composition is crosslinked at an elevated temperature for sufficient time to crosslink the ethylene-vinyl acetate maleic anhydride terpolymer without substantial decomposition forming uniform dispersion of small particles of rubber and ethylene-vinyl acetate-terpolymer in the thermoplastic polyolefin matrix.
    Type: Grant
    Filed: December 30, 1991
    Date of Patent: March 30, 1993
    Assignee: Eastman Kodak Company
    Inventor: Saubhagya C. Mathur
  • Method for controlling the removal of acidic metal carbonyl hydride from product streams
    Patent number: 5196345
    Abstract: A method for determining the concentration of an acidic metal carbonyl hydride in an organic liquid by measuring the conductivity or pH of the liquid. The air addition to a continuous air demetallating unit may be controlled by feedback from the conductivity or pH measurement of the effluent.
    Type: Grant
    Filed: February 28, 1991
    Date of Patent: March 23, 1993
    Assignee: Eastman Kodak Company
    Inventors: James L. Cooper, Jack M. Bogle
  • Thermally stable polyesters containing trans-4,4'-stilbenedicarboxylic acid
    Patent number: 5194574
    Abstract: Melt processable copolyesters having improved thermal stability are prepared from 1,4-butanediol, minor amounts of trans-4,4'-stilbenedicarboxylic acid and a dicarboxylic acid selected from terephthalic acid, isophthalic acid, and mixtures thereof.
    Type: Grant
    Filed: November 4, 1991
    Date of Patent: March 16, 1993
    Assignee: Eastman Kodak Company
    Inventors: John C. Morris, Winston J. Jackson, Jr.
  • Aqueous additive systems, methods and polymeric particles
    Patent number: 5190579
    Abstract: Aqueous application systems for applying additives to polymeric particles, methods of preparing aqueous emulsions which include at least one processing, stabilizing or other functional polymer additive and an emulsifiable wax. Also disclosed are methods of applying additives to polymeric particles and to polymeric particles treated by such methods.
    Type: Grant
    Filed: February 7, 1990
    Date of Patent: March 2, 1993
    Assignee: Eastman Kodak Company
    Inventors: William C. Gose, Kenneth W. Hyche
  • Low temperature multi-layer extrusion coating process and articles produced thereby
    Patent number: 5178960
    Abstract: Process for applying multi-layer extrusion coatings to substrate at low temperature is described, employing as one extrusion coating layer a defined polyethylene-containing component, and, as the second extrusion coating layer at least one second extrudable polymeric composition. Also provided are novel extrusion coated articles comprising substrate having coated thereon defined polyethylene-containing component and at least one other extrudable polymeric composition. These articles display good adhesion of extrusion coating material to the substrate without the degradation of the extrudable coatings caused by exposure to excessive levels of heat as is required for successful extrusion coating employing prior art materials.
    Type: Grant
    Filed: April 8, 1992
    Date of Patent: January 12, 1993
    Assignee: Eastman Kodak Company
    Inventor: John W. Cook
  • Purification of cyclic ketene acetals
    Patent number: 5164516
    Abstract: An improved process for the purification of cyclic ketene acetals such as 2-methylene-1,3-dioxepane is provided. This process entails the purification of the cyclic ketene acetal by distillation in the presence of a solvent and an amine.
    Type: Grant
    Filed: February 14, 1991
    Date of Patent: November 17, 1992
    Assignee: Eastman Kodak Company
    Inventors: Saubhagya C. Mathur, Jeffrey J. Vanderbilt
  • Solid-form additive systems dispersible in aqueous media, methods for the preparation and application thereof to polymeric particles
    Patent number: 5153029
    Abstract: Solid form additive systems which are dispersible in aqueous media are disclosed, as are methods for preparing such additive systems and methods for dispersing such additive systems in aqueous media. Also disclosed are methods for applying additive to polymeric particles and the polymeric particles treated by such methods.
    Type: Grant
    Filed: April 23, 1990
    Date of Patent: October 6, 1992
    Assignee: Eastman Kodak Company
    Inventor: Mahendra K. Sharma
  • Tobacco smoke filter material and process for production thereof
    Patent number: 5150721
    Abstract: Disclosed is a novel process of preparing tobacco smoke filter material, wherein an acidic compound such as citric acid is dissolved in a cellulose acetate spinning solution prior to spinning the filaments of the filter material.
    Type: Grant
    Filed: October 10, 1990
    Date of Patent: September 29, 1992
    Inventors: Benedict M. Lee, James E. Harris
  • Process for the production of tobacco smoke filters
    Patent number: 5150723
    Abstract: Disclosed is a novel tobacco smoke filter material comprising a filter element such as cellulose acetate crimped tow having at least about 1 weight percent of micro acicular crystals of a compound such as sodium carbonate present on the surfaces of the filter element. Also disclosed is a process for preparation of such tobacco smoke filter material comprising immersing the filter element in a solution of the compound capable of forming the micro acicular crystals, followed by removing the filter element from the solution and removing residual liquid, thereby forming the novel tobacco smoke filter material.
    Type: Grant
    Filed: June 8, 1990
    Date of Patent: September 29, 1992
    Assignee: Eastman Kodak Company
    Inventors: Benedict M. Lee, James E. Harris
  • Synthesis of cyclic ketene acetals
    Patent number: 5144046
    Abstract: An improved process for the preparation of cyclic ketene acetals such as 2-methylene-1,3-dioxepane is provided. This process entails reacting at an elevated temperature a halogenated cyclic ketene acetal such as 2-chloromethyl-1,3-dioxepane with a hydroxide compound such as potassium hydroxide in a non-reactive alcohol such as 2-butanol.
    Type: Grant
    Filed: February 14, 1991
    Date of Patent: September 1, 1992
    Inventor: Saughagya C. Mathur
  • Process for preparation of dipeptides
    Patent number: 5144073
    Abstract: Disclosed is a process for synthesis of a dipeptide such as N-acetyl-L-.alpha.-aspartyl-L-phenylalanine methyl ester wherein one amino acid serves as a chiral template which allows for synthesis of a second amino acid residue to form said dipeptide. The process involves several novel steps such as a nucleophile addition step. In addition, several novel intermediates are described.
    Type: Grant
    Filed: September 14, 1989
    Date of Patent: September 1, 1992
    Inventor: John C. Hubbs
  • Tetraamides and method for improving feed utilization
    Patent number: 5141749
    Abstract: Disclosed are novel tetraamide compounds and intermediates therefor which are useful in methods for improving feed conversion and/or weight gain in animals such as chickens.
    Type: Grant
    Filed: December 5, 1988
    Date of Patent: August 25, 1992
    Assignee: Eastman Kodak Company
    Inventors: David C. Herting, Alan W. White
  • Tobacco smoke filter material and process for production thereof
    Patent number: 5141006
    Abstract: Disclosed is a novel process of preparing tobacco smoke filter material, wherein an acidic compound such as citric acid is dissolved in a cellulose acetate spinning solution (dope) prior to spinning the filaments of the filter material.
    Type: Grant
    Filed: February 28, 1990
    Date of Patent: August 25, 1992
    Assignee: Eastman Kodak Company
    Inventors: Benedict M. Lee, James E. Harris
  • A catalyst composition comprising rhodium, ruthenium,and a promoter
    Patent number: 5135901
    Abstract: A catalyst used in a process for producing a .beta.-hydroxyester product or a .beta.-hydroxyaldehyde product from ethylene oxide, carbon monoxide, and, optionally, hydrogen, is disclosed. This process uses, as a catalyst, a catalyst comprising rhodium, ruthenium, and a Group Va promoter.
    Type: Grant
    Filed: June 7, 1991
    Date of Patent: August 4, 1992
    Assignee: Eastman Chemical Company
    Inventor: William A. Beavers
  • Process for the production of carbonyl compounds
    Patent number: 5120877
    Abstract: A process for the production of carbonyl compounds such as acetaldehyde is provided. This process entails reacting alpha olefins with a catalyst system containing a noble metal oxidation catalyst, cupric ions, chloride ions, and a strong acid such as sulfuric acid followed by separating into a carbonyl compound stream and a reduced catalyst stream followed by oxidizing the catalyst stream and returning it to the reaction zone at a pH between about 0 and 2.
    Type: Grant
    Filed: January 22, 1991
    Date of Patent: June 9, 1992
    Assignee: Eastman Kodak Company
    Inventors: Albert T. Fanning, Jr., Harry F. Goss
  • Low temperature multi-layer extrusion coating process
    Patent number: 5112424
    Abstract: Process for applying multi-layer extrusion coatings to substrate at low temperature is described, employing as one extrusion coating layer a defined polyethylene-containing component, and, as the second extrusion coating layer at least one second extrudable polymeric composition. Also provided are novel extrusion coated articles comprising substrate having coated thereon defined polyethylene-containing component and at least one other extrudable polymeric composition. These articles display good adhesion of extrusion coating material to the substrate without the degradation of the extrudable coatings caused by exposure to excessive levels of heat as is required for successful extrusion coating employing prior art materials.
    Type: Grant
    Filed: September 1, 1989
    Date of Patent: May 12, 1992
    Assignee: Eastman Kodak Company
    Inventor: John W. Cook
  • Process for packaging amorphous polyolefins
    Patent number: 5109892
    Abstract: A process for packaging normally tacky amorphous polyolefins is provided. The process entails flowing a heated amorphous polyolefin into a molded polyolefin container having a relatively thick wall at a temperature above the melting point of the container, followed by slowly cooling the filled container.
    Type: Grant
    Filed: December 27, 1990
    Date of Patent: May 5, 1992
    Assignee: Eastman Kodak Company
    Inventor: Marc S. Somers
  • Method of producing neopentyldiamine
    Patent number: 5099070
    Abstract: A process for producing neopentyldiamine is provided. This process entails contacting a feedstream containing neopentanolamine with ammonia and hydrogen in the presence of a support nickel catalyst under amination conditions.
    Type: Grant
    Filed: December 7, 1990
    Date of Patent: March 24, 1992
    Assignee: Eastman Kodak Company
    Inventors: Garrett C. Luce, Anthony W. McCollum
  • Aqueous additive systems, methods and polymeric particles
    Patent number: 5096493
    Abstract: Aqueous application systems for applying additives to polymeric particles, methods of preparing aqueous emulsions which include at least one processing, stabilizing or other functional polymer additive and an emulsifiable wax. Also disclosed are methods of applying additives to polymeric particles and to polymeric particles treated by such methods.
    Type: Grant
    Filed: October 11, 1990
    Date of Patent: March 17, 1992
    Assignee: Eastman Kodak Company
    Inventors: Kenneth W. Hyche, William C. Gose
  • Analysis of acidic metal carbonyl hydride containing streams
    Patent number: 5091317
    Abstract: A method for determining the concentration of an acidic metal carbonyl hydride in an organic liquid by measuring the conductivity or pH of the liquid. The air addition to a continuous air demetallating unit may be controlled by feedback from the conductivity or pH measurement of the effluent.
    Type: Grant
    Filed: August 12, 1988
    Date of Patent: February 25, 1992
    Assignee: Eastman Kodak Company
    Inventors: James L. Cooper, Jack M. Bogle