Patents Represented by Attorney William P. Heath, Jr.

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  • Substituted 2-amino-5-maleimido thiophenes and substituted 2-amino-maleimido thiazoles
    Patent number: 5179207
    Abstract: Provided are certain substituted 2-aminothiazoles and 2-aminothiophenes which are useful as red colorants and as intermediates in the synthesis of bathochromic azo dyes. These compounds are prepared by reacting 2-aminothiophenes or 2-aminothiazoles, which contain a primary amino group, with 2-chloro-3-negatively-substituted maleimides. These compounds can be diazotized and coupled with azo components, for example, anilines, 1,2,3,4-tetrahydroquinolines, 2,3-dihydroindoles, and 3,4-dihydro-2H-1,4-benzoxazines to form bathochromic blue-cyan azo dyes.
    Type: Grant
    Filed: August 19, 1991
    Date of Patent: January 12, 1993
    Assignee: Eastman Kodak Company
    Inventors: James J. Krutak, Max A. Weaver
  • Continuous process for the recovery of 2 ethylhexanal and a tertiary amine from a mixture comprising 2-ethyl-2-(hydroxymethyl) hexanal, 2-ethylhexanal, tertiary amine and water
    Patent number: 5177267
    Abstract: Disclosed is a continuous process for the manufacture of 2-ethyl-2-(hydroxymethyl)hexanal wherein 2-ethylhexanal, formaldehyde and a tertiary amine are continuously fed to a reaction zone and crude product comprising an aqueous phase and an organic phase containing 2-ethyl-2-(hydroxymethyl)hexanal and 2-ethylhexanal is continuously removed from the reaction zone. Also disclosed are processes for (1) the azeotropic distillation of the organic phase of the crude product whereby unreacted 2-ethylhexanal is recovered and (2) the catalytic hydrogenation of the refined, organic phase of the crude product to produce 2-butyl-2-ethyl-1,3-propanediol.
    Type: Grant
    Filed: May 22, 1992
    Date of Patent: January 5, 1993
    Assignee: Eastman Kodak Company
    Inventors: Don L. Morris, William A. Beavers, William E. Choate
  • Method of quantitative analysis of organophosphorus compounds
    Patent number: 5177019
    Abstract: A novel method quantitatively analyzes certain organophosphorus compounds present in mixtures of the organophosphorus compounds, a Group VIII metal and an inert solvent using gas chromatography techniques. The method involves the conversion of a catalytically-active form of the Group VIII metal to a cyano complex prior to gas chromatography analysis. Compositions are also described which are useful in the gas chromatography analysis.
    Type: Grant
    Filed: May 20, 1991
    Date of Patent: January 5, 1993
    Assignee: Eastman Kodak Company
    Inventors: Thomas J. Devon, Jerry C. Dobbs
  • Process for preparing cyclohexenylhydroquinone
    Patent number: 5177245
    Abstract: Provided is a process for preparing optionally-substituted cyclohexenylhydroquinones starting from cyclohexanone.
    Type: Grant
    Filed: November 25, 1991
    Date of Patent: January 5, 1993
    Assignee: Eastman Kodak Company
    Inventors: Dewey W. Fuller, Jr., Gether Irick, Jr.
  • Recovery of acetyl values from ethylidene diacetate
    Patent number: 5175362
    Abstract: Disclosed is a process for the recovery of acetyl values from an ethylidene diacetate stream obtained from an acetic anhydride production system. The process comprises hydrolyzing ethylidene diacetate in a liquid phase, hydrolysis zone containing a non-volatile, acidic catalyst and maintained under boiling conditions to obtain a mixture of acetaldehyde, acetic acid and water and then oxidizing the mixture in a liquid phase, oxidation zone containing a cobalt oxidation catalyst to obtain a mixture of acetic acid and water. The process optionally includes a means for reducing substantially the concentration of iodine in the EDA used in the process.
    Type: Grant
    Filed: May 29, 1991
    Date of Patent: December 29, 1992
    Assignee: Eastman Kodak Company
    Inventors: Carl F. Fillers, Eric D. Middlemas, Hugh M. Thompson, Jr., Jerry A. Barron, William T. Brown
  • Method for purification of carboxylic acids and anhydrides
    Patent number: 5175363
    Abstract: Disclosed is a method for reducing olefinic impurities in solutions of carboxylic acids and/or anhydrides. The invention is especially useful for removing substantially all, i.e., greater than 90 percent of trace amounts of olefinic impurities.
    Type: Grant
    Filed: January 28, 1991
    Date of Patent: December 29, 1992
    Assignee: Eastman Kodak Company
    Inventors: Joseph R. Zoeller, Regina M. Moncier
  • Process for treating pigments
    Patent number: 5169881
    Abstract: The present invention concerns a process for preparing a treated blend which contains pigment material dispersed in a continuous phase of water and a polyester material. The invention also concerns compositions prepared from such process. The polyester material of the treated blend is linear, contains a sulfomonomer, and has an average particle size of less than 1 .mu.m.
    Type: Grant
    Filed: May 6, 1991
    Date of Patent: December 8, 1992
    Assignee: Eastman Kodak Company
    Inventors: Kimberly T. Peters, Stephen H. W. Wu
  • Process for the manufacture of 2,2,4,4-tetramethycyclobutanediol
    Patent number: 5169994
    Abstract: Disclosed is a novel process for the manufacture of 2,2,4,4-tetramethylcyclobutanediol commencing with the pyrolysis of isobutyric anhydride to produce dimethylketene. Dimethylketene is absorbed into certain carboxylate ester solvents which function as the process solvents for subsequent dimerization of the dimethylketene to 2,2,4,4-tetramethylcyclobutanedione followed by the catalytic hydrogenation of the dione to the diol product.
    Type: Grant
    Filed: August 20, 1991
    Date of Patent: December 8, 1992
    Assignee: Eastman Kodak Company
    Inventors: Charles E. Sumner, Jr., Bruce L. Gustafson, Jennifer R. Knight
  • 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
  • Ink millbase and method for preparation thereof
    Patent number: 5162399
    Abstract: Disclosed is a process for preparing ink millbase by use of a polymer blend of compatible polyesters and acrylic polymers. The polyesters are water-dispersible as a result of sulfonate groups on the polyester backbone. Use of the polymer blend results in an improvement in pigment particle size reduction during grinding.
    Type: Grant
    Filed: January 9, 1991
    Date of Patent: November 10, 1992
    Assignee: Eastman Kodak Company
    Inventors: Mahendra K. Sharma, Hieu D. Phan
  • Thermosetting powder coating compositions
    Patent number: 5160792
    Abstract: Provided are novel thermosetting powder coating compositions comprised of blends of certain amorphous polyesters, polyesters containing 1,4- and 1,3-bis(2-hydroxyethoxy)-benzene, and cross-linking agents. Coatings provided therefrom possess good gloss, impact strength, and flexibility.
    Type: Grant
    Filed: February 4, 1991
    Date of Patent: November 3, 1992
    Assignee: Eastman Kodak Company
    Inventors: Robert B. Barbee, Brian S. Phillips
  • Diols and polyesters made therefrom
    Patent number: 5157102
    Abstract: Provided is indeno[1,2-.beta.] fluorene-6,12-diol, useful as an intermediate to polyesters. Also provided are derivatives of this compound and novel polyesters having residues of indeno[1,2-.beta.] fluorene-6,12-diol or its derivatives copolymerized therein and shaped or formed articles comprised of the novel polyesters.
    Type: Grant
    Filed: September 23, 1991
    Date of Patent: October 20, 1992
    Assignee: Eastman Kodak Company
    Inventors: Charles E. Sumner, Jr., Ernest W. Arnold, Gary D. Boone
  • Shaped articles from melt-blown, oriented fibers of polymers containing microbeads
    Patent number: 5156905
    Abstract: Disclosed are molded articles comprising a melt blown assembly of thermally bonded, longitudinally oriented fibers, said fibers comprising a continuous polymer matrix having dispersed therein microbeads of a material which is incompatible with said polymer matrix which are at least partially bordered by void space, said microbeads being present in an amount of about 5-50% by weight based on the weight of polymer matrix, said void space occupying about 2-60% by volume of said fibers.
    Type: Grant
    Filed: December 3, 1990
    Date of Patent: October 20, 1992
    Assignee: Eastman Kodak Company
    Inventors: Shriram Bagrodia, Mark A. Pollock
  • Poly (ether-ketone)
    Patent number: 5155203
    Abstract: Disclosed is a poly(ether-ketone) having an inherent viscosity of at least 0.4 and consisting of the repeating unit ##STR1## wherein each Ph is 1,4-phenylene. The poly(ether-ketone) is derived from two specific reactants, 1,3-bis-(4-phenoxybenzoyl)benzene and 4,4'-oxydibenzoic acid which may be reacted in the presence of methanesulfonic acid and phosphorus pentoxide.
    Type: Grant
    Filed: September 27, 1989
    Date of Patent: October 13, 1992
    Assignee: Eastman Kodak Company
    Inventors: W. Ronald Darnell, Winston J. Jackson, Jr.
  • Blends of copoly(arylene sulfide) and polyamide
    Patent number: 5155176
    Abstract: A composition comprising an admixture of(A) a copoly(arylene sulfide) corresponding to the structure[(--A--S--).sub.1-x (--A--S--S--).sub.x ].sub.nwherein A is a divalent substituted or unsubstituted aromatic radical, x is in the range of 0.5 to 0.
    Type: Grant
    Filed: March 23, 1992
    Date of Patent: October 13, 1992
    Assignee: Eastman Kodak Company
    Inventors: Shriram Bagrodia, David R. Fagerburg, Joseph J. Watkins, Paul B. Lawrence
  • Process for the preparation of copoly(arylene sulfide) having an enhanced rate of crystallization
    Patent number: 5155183
    Abstract: Disclosed is a process for preparing a final copoly(arylene sulfide) by contacting an original copoly(phenylene sulfide) with a poly(phenylene sulfide) in the melt phase. The final copoly(arylene sulfide) exhibits an enhanced rate of crystallization.
    Type: Grant
    Filed: April 16, 1991
    Date of Patent: October 13, 1992
    Assignee: Eastman Kodak Company
    Inventors: Ernest W. Arnold, III, Joseph J. Watkins, David R. Fagerburg, Paul B. Lawrence
  • 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
  • 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
  • Apparatus for collecting samples of articles conveyed at high speed in consecutive order
    Patent number: 5150621
    Abstract: This invention relates to apparatus for collecting consecutive samples of articles from a production line which are being conveyed at a high rate of speed. Samples are collected from the production line by transferring them to a conveyor which carries them to storage in sequential order. The invention is particularly applicable to collecting cigarette filter rods or cigarettes in the order of their production for subsequent testing and/or analysis.
    Type: Grant
    Filed: November 1, 1990
    Date of Patent: September 29, 1992
    Assignee: Eastman Kodak Company
    Inventors: Jack S. Moore, Jr., Johnny R. Cox, Mark L. Williams
  • 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