Patents Assigned to Diamond Shamrock Corporation
  • Patent number: 3970482
    Abstract: Metal treating compositions, formulated from precursor components, and containing chromic acid with pulverulent zinc and thereby finding particular utility in coating metal substrates prior to painting, can now have simplified precursor components. Such simplified precursor components may be easily and readily blended to form the metal treating composition. Yet such precursor components exhibit enhanced storage stability as well as compositional simplicity.
    Type: Grant
    Filed: September 9, 1974
    Date of Patent: July 20, 1976
    Assignee: Diamond Shamrock Corporation
    Inventor: Walter H. Gunn
  • Patent number: 3970443
    Abstract: A combination of cycloheximide and chlorinated di- and tricyanobenzenes is a synergistic composition capable of promoting fruit, especially citrus fruit, abscission when applied to trees bearing same.
    Type: Grant
    Filed: February 18, 1975
    Date of Patent: July 20, 1976
    Assignee: Diamond Shamrock Corporation
    Inventors: Robert E. Holm, Paul H. Schuldt
  • Patent number: 3970620
    Abstract: Polyvinylchloride foam compositions are prepared by frothing. To prepare the compositions for frothing, the silicone surfactant frothing agents present are extended with oleophilic frothing aids which do not significantly detract from the hydrophobic and flame retardant properties of the foam. Further, the frothing aids may be used to control froth viscosity. From about 5.0 phr to about 10.0 phr of a frothing aid is added to about 2.0 phr to about 4.0 phr of the frothing agent present in the composition. Simple and complex organic phosphate and phosphite esters; organic nirogen compounds such as amines, aminoamides, alkanolamides, imidazolines, quaternaries, and nirogen-sulfur compounds; simple and complex organic borate esters such as 2-ethyl-hexyl borate, trihexylene glycol biborate, and tricresyl borate are useful as frothing aids.
    Type: Grant
    Filed: June 24, 1975
    Date of Patent: July 20, 1976
    Assignee: Diamond Shamrock Corporation
    Inventor: Frederick J. Ihde, Jr.
  • Patent number: 3970462
    Abstract: Self setting molds for metal casting are produced using a liquid alkali metal silicate as the binder and a product obtained by reaction of three moles of glycerin and one mole of glacial acetic acid as the catalyst for the binder.
    Type: Grant
    Filed: February 25, 1974
    Date of Patent: July 20, 1976
    Assignee: Diamond Shamrock Corporation
    Inventor: Neil W. Stillman
  • Patent number: 3970648
    Abstract: 2-[2-(5-Nitro-2-furyl)vinyl]-4-(anilino)quinazolines and 2-[2-(5-nitro-2-furyl)vinyl]-4-(hydroxyanilino)quinazolines are prepared and used as pesticides and animal growth promotants. These quinazolines also improve the feed efficiency of animals.
    Type: Grant
    Filed: September 6, 1974
    Date of Patent: July 20, 1976
    Assignee: Diamond Shamrock Corporation
    Inventors: Herman Horn, Sheldon B. Greenbaum, Charles M. Ely, Walter Hacke, David A. Olle
  • Patent number: 3965139
    Abstract: A series of 2-chloro-N-(cyanomethyl)acetanilide compounds are active as selective herbicides for protecting certain crops against infestation by undesirable grasses.
    Type: Grant
    Filed: May 1, 1974
    Date of Patent: June 22, 1976
    Assignee: Diamond Shamrock Corporation
    Inventor: James A. Scozzie
  • Patent number: 3963751
    Abstract: The biologically active compound, 3,3,4,4-tetrachlorotetrahydrothiophene-1,1-dioxide, is produced by the stepwise chlorination of butadiene sulfone, employing a free radical-generating compound as catalyst for the substitution chlorination stage of the reaction.
    Type: Grant
    Filed: July 14, 1975
    Date of Patent: June 15, 1976
    Assignee: Diamond Shamrock Corporation
    Inventors: Alex Hlynsky, Jan M. Griggs, Edmond R. Osgood
  • Patent number: 3957893
    Abstract: The tendency for methyl chloroform to decompose in the presence of metals, particularly aluminum, is inhibited by a stabilizer mixture comprising an epoxide, a nitroalkane and either propylene glycol mono-methyl ether, dioxepane or a mixture thereof.
    Type: Grant
    Filed: March 28, 1974
    Date of Patent: May 18, 1976
    Assignee: Diamond Shamrock Corporation
    Inventors: Norman L. Beckers, Edward A. Rowe
  • Patent number: 3954491
    Abstract: Addition of sodium naphthaleneformaldehyde sulfonate having a lowest elution volume of from about 61 to about 70% of a total elution volume by gel permeation chromatography to the raw mix slurry used in manufacture of cement by the wet process permits reduction of the water content of the raw mix slurry and conservation of the amount of fuel required to evaporate the water from the slurry during manufacture.
    Type: Grant
    Filed: October 21, 1974
    Date of Patent: May 4, 1976
    Assignee: Diamond Shamrock Corporation
    Inventors: Norman F. Adrian, Joseph P. Fleming
  • Patent number: 3954510
    Abstract: Metal treating compositions, containing hexavalent-chromium-providing substance and pulverulent zinc, and which find particular utility in the coating of metal substrates prior to painting, now exhibit extended bath stability through pH control. The key to the control is achieved during preparation of precursor components. Such components of controlled, or adjusted, pH are then blended together to form a bath of excellent stability e.g., extended freedom from gelation.
    Type: Grant
    Filed: September 9, 1974
    Date of Patent: May 4, 1976
    Assignee: Diamond Shamrock Corporation
    Inventors: Walter H. Gunn, Jon A. DE Ridder
  • Patent number: 3953339
    Abstract: An improved coning oil to reduce oil slinging during yarn processing is obtained by adding an aluminum soap of a saturated fatty acid having from about 8 to about 22 carbon atoms to a coning oil composition containing a mineral oil and at least one emulsifier.
    Type: Grant
    Filed: September 14, 1973
    Date of Patent: April 27, 1976
    Assignee: Diamond Shamrock Corporation
    Inventors: James E. Obetz, Albert R. Tarini
  • Patent number: 3951853
    Abstract: Compositions for controlling foam in aqueous systems are prepared by dispersing in an organic liquid the particles of an amide with the reaction product of an alkyl or aryl halosilane and a base. Polymers, fatty acids and glycerides may also be present as organic components in the compositions. These compositions do not lose defoaming ability or increase in viscosity after they are heated at elevated temperatures or stored for long periods of time.
    Type: Grant
    Filed: November 4, 1974
    Date of Patent: April 20, 1976
    Assignee: Diamond Shamrock Corporation
    Inventor: David W. Suwala
  • Patent number: 3950505
    Abstract: Manganous oxide is converted directly to manganous hydroxide by hydration in the presence of a catalyst. The product has high purity and reactivity.
    Type: Grant
    Filed: April 28, 1975
    Date of Patent: April 13, 1976
    Assignee: Diamond Shamrock Corporation
    Inventor: Irving Sochol
  • Patent number: 3948636
    Abstract: An easily handled, flowable, pesticide composition contains as essential components in water as the sole liquid medium, from 10 to 60%, by weight, of at least one solid, substantially water-insoluble pesticidally-active ingredient; from 1 to 10%, by weight, of a water-soluble nonionic surfactant; and from 0.02 to 1% by weight of a heteropolysaccharide gum. Optional ingredients of the composition include, for example, antifoam agents, anticaking agents, and freeze-point depressants. This composition is an extremely stable suspension. It is totally dispersible in water, providing agglomerate-free pesticidal spray compositions.
    Type: Grant
    Filed: November 9, 1972
    Date of Patent: April 6, 1976
    Assignee: Diamond Shamrock Corporation
    Inventor: Alfred F. Marks
  • Patent number: 3947521
    Abstract: An economical process is described for the oxidation of allylacetone to 2,5-hexanedione in a mixed solvent system, using palladium chloride catalyst in the presence of copper chloride and oxygen. Through the use of high copper/palladium mole ratios together with copper/allylacetone mole ratios greater than 1, high yields of product are obtained with minimal losses of palladium.
    Type: Grant
    Filed: April 8, 1974
    Date of Patent: March 30, 1976
    Assignee: Diamond Shamrock Corporation
    Inventor: Ralph H. Lasco
  • Patent number: 3945901
    Abstract: A method is provided for obtaining the deposition of a protective electrocoating film onto the surface of electrically conductive, magnetically-attractable metal articles. With the method, a multitude of various articles, e.g., screws, clips, bolts, nails and the like, which may be in mixture, can be readily and efficiently electrocoated in batch or continuous operation. The method provides for establishing a magnetic field in close proximity to a coating bath, with the field having sufficient magnetic strength to affect the location of coated parts in at least a zone of the coating bath. The magnetic field cooperates with an assembly that is rotatable, e.g., a drum member. The means for rotation has a face element at least partly immersed in the bath. In rotation, articles are moved within the bath while they are under the influence of the magnetic field.
    Type: Grant
    Filed: December 13, 1974
    Date of Patent: March 23, 1976
    Assignee: Diamond Shamrock Corporation
    Inventor: Joseph D. Nessar
  • Patent number: 3945955
    Abstract: Polyvinylchloride foam compositions are prepared by frothing. To prepare the compositions for frothing, the silicone surfactant frothing agents present in the composition are extended with oleophilic frothing aids which do not significantly detract from the hydrophobic and flame retardant properties of the foam. Further, the frothing aids may be used to control froth viscosity. From about 5.0 phr to about 10.0 phr of frothing aid is added to from about 2.0 phr to about 4.0 phr of frothing agent present in the composition.
    Type: Grant
    Filed: December 16, 1974
    Date of Patent: March 23, 1976
    Assignee: Diamond Shamrock Corporation
    Inventor: Frederick J. Ihde, Jr.
  • Patent number: 3943044
    Abstract: A system and apparatus for disinfecting sewage water and removing suspended solids therefrom by in-situ treatment with chemical agents and gases, each produced electrolytically, comprising a treatment chamber, disinfecting and solids conveying means including at least one pair of electrodes disposed in the chamber, solids removal means associated with the chamber, a source of aqueous alkali metal halide solution and optionally an ultraviolet light ray source and solids collection means.
    Type: Grant
    Filed: November 30, 1973
    Date of Patent: March 9, 1976
    Assignee: Diamond Shamrock Corporation
    Inventors: Robert W. Fenn, III, Kevin J. O'Leary
  • Patent number: 3940280
    Abstract: A coating composition is prepared, typically, from a liquid composition precursor component to which there is added a concentrate adapted for blending with such precursor component. The concentrate contains pulverulent metal and a very minor amount of water-soluble cellulose ether, while preferably further containing water-dispersible organic liquid. The precursor component is exemplified by a solution of an inorganic acid such as chromic acid in water.
    Type: Grant
    Filed: February 25, 1974
    Date of Patent: February 24, 1976
    Assignee: Diamond Shamrock Corporation
    Inventor: Jon A. DERidder
  • Patent number: 3936268
    Abstract: In dyeing nylon textiles with acid dyes, barre is reduced by using a synergistic mixture of a dye-leveling alkyl sulfonate and a dye-leveling alkyl aryl sulfonate.
    Type: Grant
    Filed: November 7, 1974
    Date of Patent: February 3, 1976
    Assignee: Diamond Shamrock Corporation
    Inventor: John G. Papalos