Patents Represented by Attorney Andrew Alexander
  • Patent number: 5279929
    Abstract: A photographic element comprises a support bearing at least one photographic silver halide emulsion layer and at least one coupler (A) having a water solubilizing group wherein coupler (A) forms a compound that is washed out of the photographic element during photographic processing and forms a coupling-off group represented by the formula:--X--Rel.sup.3 --T.sup.3 --INHwherein;X is selected from oxygen, nitrogen or sulfurX--Rel.sup.3 contains a photographic ballast and is a releasing group for releasing T.sup.3 --INH from X--Rel.sup.3 by intramolecular displacement reaction during photographic processing without substantial delay of releasing;T.sup.3 is a timing group that releases INH by intramolecular displacement reaction with timing delay during photographic processing;INH is a development inhibitor group;The photographic coupler (A) enables formation of easily removable dyes in photographic elements and processes that provide images having improved acutance, stability and interimage effects.
    Type: Grant
    Filed: June 24, 1992
    Date of Patent: January 18, 1994
    Assignee: Eastman Kodak Company
    Inventors: William J. Begley, Drake M. Michno, Hans G. Ling, Teh H. Chen
  • Patent number: 5264583
    Abstract: A method of forming a washout photographic coupler comprising a coupler moiety (COUP) containing a substituted or unsubstituted ballasted releasing group (A) selected from aryloxy, thioaryloxy, heterocyclicoxy, and thioheterocyclicoxy releasing groups having attached thereto a phenoxy timing group containing a photographically useful group (PUG), the releasing group capable of intramolecular displacement to release the timing group, the method comprising:(a) providing a coupler moiety (COUP) having the releasing group (A) in a coupling off position, the releasing group (A) having a 2 position containing a carbamyl chloride;(b) reacting the carbamyl chloride with a phenoxy timing group having an amine blocked with a carbamate group, the reacting being carried out in the presence of a base to form a first product;(c) removing the carbamate group using an acid to provide a coupler moiety (COUP) having a releasing group (A) and phenoxy timing group having an amine group; and(d) reacting the amine group to form a
    Type: Grant
    Filed: June 24, 1992
    Date of Patent: November 23, 1993
    Assignee: Eastman Kodak Company
    Inventors: William J. Begley, Donald Singleton, Jr.
  • Patent number: 5264582
    Abstract: A method of preparing a washout photographic coupler comprising a coupler moiety (COUP) containing a substituted or unsubstituted ballasted releasing group (A) selected from aryloxy, thioaryloxy, heterocyclicoxy, and thioheterocyclicoxy releasing groups having attached thereto a phenoxy timing group containing a photographically useful group (PUG), the releasing group capable of elimination electron transfer to release the timing group, the method comprising:(a) providing a coupler moiety (COUP) having the releasing group (A) in a coupling off position, the releasing group (A) having on at least one of the 2- or 4-position a substituted or unsubstituted halomethyl;(b) reacting a substituted or unsubstituted hydroxyaryl aldehyde or hydroxyaryl ketone with the halomethyl group of step (a) in the presence of an alkylpyridine and a dipolar aprotic solvent to form a first product; and(c) reducing the first product and halogenating the reduced first product before reacting with a photographically useful group to fo
    Type: Grant
    Filed: June 24, 1992
    Date of Patent: November 23, 1993
    Assignee: Eastman Kodak Company
    Inventors: William J. Begley, Robert C. Stewart
  • Patent number: 5258168
    Abstract: Disclosed is a method for preparing high purity alunite. In the method, a material selected from the group consisting of sodium sulfate, sodium bisulfate, ammonium sulfate, ammonium bisulfate, potassium sulfate and potassium bisulfate is provided and reacted with a source of aluminum hydroxide in a liquid. The reaction is carried out under acidic conditions, and alunite is recovered after separating, washing and drying.
    Type: Grant
    Filed: July 19, 1989
    Date of Patent: November 2, 1993
    Assignee: Aluminum Company of America
    Inventor: Chanakya Misra
  • Patent number: 5238715
    Abstract: Disclosed is a food or beverage container or container panel comprised of an aluminum alloy body having an integral bottom and wall. An intermediate layer comprised of an aluminum oxide or aluminum hydroxide layer is bonded to the aluminum alloy body and a functionalized layer of an organo phosphonate, organo phosphinate or phosphate ester is bonded to the oxide or hydroxide layer. A polymer layer is bonded to the functionalized layer. The functionalized layer is comprised of the reaction product of phosphonic or phosphinic acid and/or phosphonic acid ester, for example.
    Type: Grant
    Filed: December 9, 1991
    Date of Patent: August 24, 1993
    Assignee: Aluminum Company of America
    Inventors: Karl Wefers, Gary A. Nitowski, Larry F. Wieserman
  • Patent number: 5209838
    Abstract: A process is described for purifying an oil-containing liquid to remove aqueous and solid impurities which comprises passing said liquid through a permeable inorganic membrane previously treated by contacting the membrane with an organic reactant selected from the group consisting of a phosphonic acid, a phosphinic acid, a monocarboxylic acid, a dicarboxylic acid, a boronic acid, a phosphoric acid ester and a precursor which decomposes upon contact with said inorganic membrane to form one of said organic reactants whereby the treated membrane is capable of separating aqueous and solid impurities from hydrocarbons in the oil-containing liquid.
    Type: Grant
    Filed: October 7, 1991
    Date of Patent: May 11, 1993
    Assignee: Aluminum Company of America
    Inventors: William C. Sleppy, Larry F. Wieserman, Kenneth M. Thomas, Kenneth P. Goodboy
  • Patent number: 5192378
    Abstract: Disclosed is a method for making an aluminum alloy sheet having controlled levels of strength properties for forming into a container panel. A body of an aluminum alloy consisting essentially of 0.45 to 0.60 wt. % Cu, 1.1 to 1.7 wt. % Mg, 0.3 to 0.6 wt. % Si, 0.3 to 0.55 wt. % Fe, 0.5 to 1.2 wt. % Mn, the remainder aluminum, incidental elements and impurities, is hot rolled to a gauge in the range of 0.12 to 0.16 inch to provide a hot rolled product. The hot rolled product is cold rolled to provide a reduction of 50 to 80% in thickness, then solution heat treated in a range of 850.degree. to 110.degree. F. and rapidly cooled before cold rollign to a final sheet gauge by providing a reduction of 30 to 90% in thickness.
    Type: Grant
    Filed: November 13, 1990
    Date of Patent: March 9, 1993
    Assignee: Aluminum Company of America
    Inventors: Roger D. Doherty, John Liu, Robert E. Sanders, Jr.
  • Patent number: 5186790
    Abstract: Disclosed is a method of etching a lithium-containing aluminum base alloy product, the method comprising the steps of providing an etch bath comprised of 30-110 gms/liter sodium hydroxide, 15-150 gms/liter aluminum, at least 20 gms/liter sodium sulphide, and at least 20 gms/liter triethanolamine, the remainder water. The bath is maintained at a temperature range of 150.degree. to 225.degree. F. and the product to be etched is immersed therein and then rinsed. This treatment provides a finish having smoothness of less than 100 microinches.
    Type: Grant
    Filed: November 13, 1990
    Date of Patent: February 16, 1993
    Assignee: Aluminum Company of America
    Inventor: John H. Powers
  • Patent number: 5182410
    Abstract: Disclosed is a crystalline compound and a method for forming the compound having a chemical composition expressed, in terms of molar ratios, by the formula:M.n[R(COOH).sub.x ]wherein M is aluminum hydroxide, n is the number of moles of organic material reacted with a mole of M, R is an organic functional group having carboxylic acid attached thereto, and x is equal to or greater than 2.
    Type: Grant
    Filed: December 14, 1990
    Date of Patent: January 26, 1993
    Assignee: Aluminum Company of America
    Inventor: Chanakya Misra
  • Patent number: 5162065
    Abstract: Disclosed is an aluminum alloy suitable for high temperature applications comprised of at least 9 wt. % Si, 3 to 7 wt. % Ni, 1.5 to 6 wt. % Cu, at least one of the elements selected from Mg, Mn, V, Sc, Fe, Ti, Sr, Zn, B and Cr, the remainder aluminum and impurities.
    Type: Grant
    Filed: October 2, 1991
    Date of Patent: November 10, 1992
    Assignee: Aluminum Company of America
    Inventors: Gerald D. Scott, Barrie S. Shabel, Anthony Morales
  • Patent number: 5160574
    Abstract: A method of producing small diameter titanium carbide whiskers is disclosed. The method comprises supplying a source of materials comprised of titanium halide, hydrocarbon gas and nickel and reacting this material in the presence of a source of carbon monoxide to produce small diameter titanium carbide whiskers.
    Type: Grant
    Filed: May 30, 1991
    Date of Patent: November 3, 1992
    Assignee: Aluminum Company of America
    Inventors: Alan Pearson, Michael A. Easley
  • Patent number: 5151136
    Abstract: Disclosed is a method of making lithium-containing aluminum base alloy extrusion having at least a section thereof having a low aspect ratio, the extrusions having improved properties in sections thereof having the low aspect ratio. The method comprises providing a body of a lithium-containing aluminum alloy, extruding a low aspect ratio extrusion section, the aspect ratio being in the range of 1 to 2.5, and maintaining the body in a temperature range of 400.degree. to 1000.degree. F. and at least a 4:1 extrusion reduction during said extrusion step, the extrusion section having tensile yield strength of at least 60 ksi and having an ultimate yield strength of at least 4.5 ksi greater than the tensile yield strength.
    Type: Grant
    Filed: December 27, 1990
    Date of Patent: September 29, 1992
    Assignee: Aluminum Company of America
    Inventors: Jeffrey J. Witters, Brian A. Cheney, Roberto J. Rioja
  • Patent number: 5151343
    Abstract: A photographic naphtholic coupler comprising a ballast free naphtholic coupler moiety containing a --CONH.sub.2 group in the 2- position and a ballasted coupling-off group in the 4- position enables good wash out of dye formed upon oxidative coupling from a photographic material during processing of such a photographic material. Such a naphtholic coupler is useful in photographic silver halide materials and processes.
    Type: Grant
    Filed: August 22, 1991
    Date of Patent: September 29, 1992
    Assignee: Eastman Kodak Company
    Inventors: William J. Begley, Teh-hsuan Chen, Hans G. Ling, John W. Harder, Arlyce T. Bowne
  • Patent number: 5137686
    Abstract: Disclosed is an aluminum base alloy suitable for forming into a wrought product having improved combinations of strength, corrosion resistance and fracture toughness. The alloy is comprised of 0.2 to 5.0 wt. % Li, 0.05 to 6.0 wt. % Mg, at least 2.45 wt. % Cu, 0.01 to 0.16 wt. % Zr, 0.05 to 12 wt. % Zn, 0.5 wt. % max. Fe, 0.5 wt. % max. Si, the balance aluminum and incidental impurities.
    Type: Grant
    Filed: January 28, 1988
    Date of Patent: August 11, 1992
    Assignee: Aluminum Company of America
    Inventors: Roberto J. Rioja, Alex Cho, Edward L. Colvin, Asuri K. Vasudevan
  • Patent number: 5137867
    Abstract: An in situ formed superconducting cermet comprising an interwoven matrix of a superconducting ceramic and a noble metal and a method of making same are disclosed.
    Type: Grant
    Filed: October 16, 1987
    Date of Patent: August 11, 1992
    Assignee: Aluminum Company of America
    Inventors: Siba P. Ray, C. Norman Cochran, William E. Libent
  • Patent number: 5135713
    Abstract: An aluminum base alloy suitable for forming into a wrought product having improved combinations of strength and fracture toughness is disclosed. The product is comprised of 0.2 to 3.0 wt. % Li, 0.1 to 3 wt. % Mg, 0.2 to 3 wt. % Cu, 5.1 to 12 wt. % Zn, 0.5 wt. % max. Fe, 0.5 wt. % max. Si, at least one of the elements selected from the group Cr, V, Hf, Mn, Ti, Ag, In and Zr, with Cr, V, Ti and Zr in the range of 0.01 to 0.2 wt. %; Hf and Mn up to 0.6 wt. % each, Ag in the range of 0.05 to 1 wt. % and in the range of 0.01 to 0.5 wt. %, the balance aluminum and incidental impurities.
    Type: Grant
    Filed: September 26, 1990
    Date of Patent: August 4, 1992
    Assignee: Aluminum Company of America
    Inventors: Roberto J. Rioja, James T. Staley
  • Patent number: 5132181
    Abstract: Disclosed is a method of producing a functionalized layer and an aluminum hydroxide layer on an aluminum substrate, the aluminum hydroxide layer located between the substrate and the functionalized layer. The method comprises the steps of subjecting an aluminum substrate to a hydrothermal treatment in an aqueous solution having a pH in the range of 2 to 14 to form a layer of aluminum hydroxide on said substrate and thereafter treating said aluminum substrate with a phosphorus-containing acid selected from phosphinic and phosphonic acid to form a functionalized layer on said aluminum hydroxide layer, the functionalized layer comprised of the reaction product of said acid and the layer of aluminum hydroxide.
    Type: Grant
    Filed: December 10, 1990
    Date of Patent: July 21, 1992
    Assignee: Aluminum Company of America
    Inventors: Karl Wefers, Gary A. Nitowski, Larry F. Wieserman
  • Patent number: 5131987
    Abstract: Disclosed is a process for anodically oxidizing aluminum alloy surfaces as a pretreatment for structural adhesive bonds or laminates. The process is comprised of anodically oxidizing aluminum and its alloys in phosphorous acid containing electrolyte to form a porous film comprised of Al, O and P. This film provides a very effective substrate for adhesively bonding aluminum articles and laminates.
    Type: Grant
    Filed: December 26, 1989
    Date of Patent: July 21, 1992
    Assignee: Aluminum Company of America
    Inventors: Gary A. Nitowski, Karl Wefers, Larry F. Wieserman
  • Patent number: 5126210
    Abstract: A process is disclosed for treating the surface of a valve metal such as aluminum to form a two layer protective coating thereon using an anodizing bath consisting essentially of an aqueous solution having a concentration ranging from about 0.001 molar to a saturated solution of a monomeric phosphorus- containing compound selected from the class consisting of a 1-30 carbon water soluble phosphonic acid, a 1-30 carbon water soluble phosphinic acid, and mixtures thereof. The valve metal surface is anodized in the anodizing bath while maintaining a voltage selected from a range of from about 1 to about 400 volts until the current density falls to a level indicative of the fact that a nonporous valve oxide layer has been formed on the valve metal surface and a reaction product from the monomeric phosphonic/phosphinic acid compound is chemically bonded to the oxide layer.
    Type: Grant
    Filed: December 27, 1990
    Date of Patent: June 30, 1992
    Assignee: Aluminum Company of America
    Inventors: Larry F. Wieserman, Karl Wefers, Gary A. Nitowski, Edward S. Martin
  • Patent number: 5123973
    Abstract: A worked rod extrusion product for fabricating into products having high wear resistance surfaces, the product comprised of 11 to 13.5 wt. % Si, 0.5 to 1.45 wt % Cu, 0.8 to 3 wt. % Mg, 0.5 to 2.95 wt. % Ni, max 1 wt. % Fe, max 0.1 wt. % Cr, max 0.25 wt. % Zn, the balance aluminum, incidental elements and impurities.
    Type: Grant
    Filed: February 26, 1991
    Date of Patent: June 23, 1992
    Assignee: Aluminum Company of America
    Inventors: Gerald D. Scott, James A. Brock, Thomas J. Klemp