Patents Assigned to M & T Chemicals Inc.
  • Patent number: 4183789
    Abstract: In accordance with certain of its aspects this invention relates to a process and composition for the prevention of anode bag clogging in the preparation of an electrodeposit which contains nickel or; binary or ternary alloys of the metals selected from nickel, iron and cobalt; which comprises passing current from an anode to a cathode through an aqueous acidic electroplating solution containing at least one member selected from the group consisting of nickel compounds and cobalt compounds and which may additionally contain iron compounds providing nickel, cobalt and iron ions for electrodepositing nickel, cobalt, nickel-cobalt alloys, nickel-iron alloys, cobalt-iron alloys or nickel-iron-cobalt alloys and containing an amount of oxalic acid break-down product; the improvement comprising the presence of 2.times.10.sup.-3 mole per liter to 1.0 mole per liter of a calcium compound or salt thereby preventing the clogging of anode bags by precipitation of calcium oxalate.
    Type: Grant
    Filed: July 20, 1978
    Date of Patent: January 15, 1980
    Assignee: M&T Chemicals Inc.
    Inventors: Hyman Chessin, Edgar J. Seyb, Jr.
  • Patent number: 4177075
    Abstract: In an ink composition suitable for ink jet printing on metal surfaces, the ink incorporating, in solution, a colorant, a resin component, an alcohol-water solvent and optionally an electrolyte, proportioned to give the ink properties of low surface tension, low viscosity and a low resistivity, the improvement comprising the presence of ammonium formate as an electrolyte thereby preventing color degradation or mutation.
    Type: Grant
    Filed: June 5, 1978
    Date of Patent: December 4, 1979
    Assignee: M&T Chemicals Inc.
    Inventor: Ishwar R. Mansukhani
  • Patent number: 4174336
    Abstract: Protective and decorative coatings for metal are prepared using aqueous polymer compositions consisting essentially of a thermosetting vinyl or acrylic polymer which has been polymerized in the presence of a preformed, crosslinked, elastomeric copolymer. The rate at which the monomers of the thermosetting polymer are added to the reaction mixture is substantially equal to the rate of reaction of these monomers to form the thermosetting polymer. This is believed to result in the formation of minute emulsified particles containing a core of the elastomeric copolymer surrounded by a layer of the thermosetting polymer. The thermosetting polymer contains pendant hydroxyl groups and a latent, heat-activated crosslinking agent.
    Type: Grant
    Filed: June 15, 1978
    Date of Patent: November 13, 1979
    Assignee: M & T Chemicals Inc.
    Inventors: Howard H. Leiner, Lee E. Koepke, Dennis R. Gelarden, John L. Gardon
  • Patent number: 4173692
    Abstract: The friability exhibited by urethane-modified isocyanurate foams prepared by reacting a polyfunctional isocyanate with a polyol at a ratio of isocyanate equivalents to moles of active hydrogen greater than 6:1 is reduced to an acceptable level using alkali metal salts in combination with certain organotin compounds or stannous salts as the catalyst.
    Type: Grant
    Filed: October 25, 1978
    Date of Patent: November 6, 1979
    Assignee: M&T Chemicals Inc.
    Inventor: William J. Eldridge
  • Patent number: 4173691
    Abstract: The rise times exhibited by flexible polyurethane foams can be significantly reduced using a stannous salt as the gel catalyst in combination with a blowing catalyst that includes an antimony (III) salt of a carboxylic acid and a potassium salt of a carboxylic acid. A zinc salt of a carboxylic acid can optionally replace a portion of the antimony (III) salt. The present blowing catalysts are particularly useful for preparing dielectrically or ultrasonically heat-sealable foams.
    Type: Grant
    Filed: February 21, 1978
    Date of Patent: November 6, 1979
    Assignee: M&T Chemicals Inc.
    Inventor: Kenneth Treadwell
  • Patent number: 4170482
    Abstract: An ink composition for use in jet printing comprising an aqueous solution of a water-soluble dye and a humectant consisting of the combination of at least one water-soluble acetylenic compound and the internal anhydride of at least one carboxylic acid in a ratio of 90:1 of the former to 1:90 of the latter.
    Type: Grant
    Filed: September 8, 1978
    Date of Patent: October 9, 1979
    Assignee: M & T Chemicals Inc.
    Inventor: Ishwar R. Mansukhani
  • Patent number: 4166053
    Abstract: Heat-resistant, polyorganosiloxane elastomers are prepared by reacting a linear, difunctional polyorganosiloxane with a silicon-containing crosslinking agent and a stannous salt of a monoethylenically unsaturated monohydroxy monocarboxylic acid as the curing catalyst. A filler can optionally be included in the formulation. The present catalysts are unique in that they impart a relatively long working life to the uncured composition yet do not catalyze the depolymerization reaction at elevated temperatures as do conventional organotin catalysts such as dibutyltin dilaurate.
    Type: Grant
    Filed: April 5, 1978
    Date of Patent: August 28, 1979
    Assignee: M & T Chemicals Inc.
    Inventors: Emily C. Bossert, Irwin B. Silverstein, Abe Berger
  • Patent number: 4166042
    Abstract: The curing time for articles prepared by reacting an isocyanate-terminated prepolymer with an aromatic diamine to form an elastomeric urethane/urea copolymer is significantly decreased using a tris(2,4,6-aminophenylthiomethyl)1,3,5-trihydrocarbyl substituted benzene as the crosslinking agent.
    Type: Grant
    Filed: June 5, 1978
    Date of Patent: August 28, 1979
    Assignee: M & T Chemicals Inc.
    Inventors: Gabriel Karoly, Vincent J. Gajewski
  • Patent number: 4155894
    Abstract: The maximum concentration of specified sulfur-containing diamines that can be dissolved in polyols employed to prepare elastomeric urethane/urea block copolymers is significantly increased by the addition to said polyols of from 1 to 10% by weight of specified aprotic organic solvents containing oxygen, sulfur or both of these elements.
    Type: Grant
    Filed: October 25, 1977
    Date of Patent: May 22, 1979
    Assignee: M&T Chemicals Inc.
    Inventors: Vincent J. Gajewski, Gabriel Karoly, Elliot Eisenbach
  • Patent number: 4153574
    Abstract: The tendency of dispersions containing triorganotin fluorides in organic liquids to agglomerate is avoided by using as the dispersion medium specified organic liquids in combination with from 0.5 to 10% based on the weight of the dispersion, of specified inorganic compounds. The choice of both organic liquid and inorganic compound is critical to achieving long-term stability of the resultant dispersion.
    Type: Grant
    Filed: January 28, 1977
    Date of Patent: May 8, 1979
    Assignee: M&T Chemicals Inc.
    Inventors: Charles B. Beiter, Leroy A. Hafner
  • Patent number: 4144362
    Abstract: Finely divided or vaporized organic and inorganic tin compounds are conventionally applied to heated glass articles to produce a coating of stannic oxide on the article. Superior coatings are obtained when the tin compound is butyltin trichloride. This compound offers the additional advantage of being recoverable in substantially pure form.
    Type: Grant
    Filed: January 27, 1978
    Date of Patent: March 13, 1979
    Assignee: M&T Chemicals Inc.
    Inventor: William A. Larkin
  • Patent number: 4138483
    Abstract: Many varieties of harmful insects which attack useful plant crops can be controlled by treating the plants with compositions containing at least one tetraorganotin compound wherein three of the four hydrocarbon groups bonded to the tin atom are methyl and the remaining group is substituted aromatic or heterocyclic that is either bonded directly to the tin atom or separated from the tin atom by one methylene group. These compounds exhibit unexpectedly superior insecticidal activity relative to organotin compounds containing three methyl groups and a phenyl or an alkyl-substituted phenyl group.
    Type: Grant
    Filed: November 11, 1977
    Date of Patent: February 6, 1979
    Assignee: M&T Chemicals Inc.
    Inventors: Melvin H. Gitlitz, John E. Engelhart, Carlos M. Mery
  • Patent number: 4138294
    Abstract: This invention relates to a method of producing lustrous to brilliant zinc electrodeposits, which comprises passing current from a zinc anode to a metal cathode for a time period sufficient to deposit a lustrous to brilliant zinc electrodeposit upon said cathode; the current passing through an aqueous acidic bath composition containing at least one zinc compound providing zinc cations for electroplating zinc, and containing as cooperating additives at least one bath soluble substituted or unsubstituted polyether, at least one aliphatic unsaturated acid containing an aromatic or heteroaromatic group and at least one aromatic nitrogen heterocyclic compound.
    Type: Grant
    Filed: December 6, 1977
    Date of Patent: February 6, 1979
    Assignee: M&T Chemicals Inc.
    Inventor: Donald A. Arcilesi
  • Patent number: 4137133
    Abstract: This invention relates to a method of producing bright zinc electrodeposits over a wide current density range, which comprises passing current from a zinc anode to a metal cathode for a time period sufficient to deposit a bright zinc electrodeposit upon said cathode; the current passing through an aqueous acidic bath composition containing at least one zinc compound providing zinc cations for electroplating zinc such as zinc chloride, zinc fluoborate, zinc sulfamate and zinc sulfate; chloride, fluoborate, sulfamate and/or sulfate anions may be added as salts of bath compatible cations to provide better electrical conductivity, and containing as cooperating additives at least one bath soluble substituted or unsubstituted polyether, at least one aliphatic unsaturated acid containing an aromatic or heteroaromatic group and at least one aromatic or N-heteroaromatic aldehyde.
    Type: Grant
    Filed: December 15, 1977
    Date of Patent: January 30, 1979
    Assignee: M&T Chemicals Inc.
    Inventor: Donald A. Arcilesi
  • Patent number: 4136046
    Abstract: Diorganotin compounds wherein at least one of the remaining valences on the tin atom is satisfied by a sulfur atom or a thiocyanate group are unique among diorganotin compounds in that they retain their catalytic activity over extended periods of time in the presence of the precursors or masterbatches conventionally employed to prepare rigid, cellular polyurethanes.
    Type: Grant
    Filed: May 20, 1976
    Date of Patent: January 23, 1979
    Assignee: M&T Chemicals Inc.
    Inventors: Justin L. Hirshman, Kenneth Treadwell
  • Patent number: 4132691
    Abstract: The combination of a polar lubricant such as an oxidized polyethylene wax and an oxide or hydroxide of specified elements not only improves the processability of rigid vinyl chloride polymers but also imparts an unexpectedly high level of heat stability.
    Type: Grant
    Filed: April 6, 1977
    Date of Patent: January 2, 1979
    Assignee: M&T Chemical Inc.
    Inventor: Adam J. Ejk
  • Patent number: 4131624
    Abstract: Tertiary phosphine oxides are reduced to the corresponding phosphines by halosilanes in the presence of a stoichiometric amount of a primary or secondary amine. The reduction in yield expected using a primary or secondary amine in place of the prior art tertiary amine is not observed.
    Type: Grant
    Filed: July 5, 1977
    Date of Patent: December 26, 1978
    Assignee: M&T Chemicals Inc.
    Inventors: William R. Davis, Michael D. Gordon
  • Patent number: 4130411
    Abstract: Tertiary phosphine oxides containing two halomethyl radicals effectively control the growth of undesirable plants, particularly grasses.
    Type: Grant
    Filed: November 5, 1976
    Date of Patent: December 19, 1978
    Assignee: M&T Chemicals Inc.
    Inventors: John E. Engelhart, Maynard W. McNeil
  • Patent number: 4130673
    Abstract: The coefficient of friction of glass is decreased and the scratch resistance is improved by applying finely divided or vaporized butyltin trichloride to the heated glass articles to produce a coating of stannic oxide on the glass. The glass is then coated with a conventional lubricating wax.
    Type: Grant
    Filed: January 27, 1978
    Date of Patent: December 19, 1978
    Assignee: M&T Chemicals Inc.
    Inventor: William A. Larkin
  • Patent number: 4129482
    Abstract: In accordance with certain of its aspects this invention relates to a process and composition for the preparation of an electrodeposit which contains iron; at least one metal selected from the group consisting of nickel and cobalt or; binary or ternary alloys of iron and of the metals selected from nickel and cobalt; which comprises passing current from an anode to a cathode through an aqueous acidic electroplating solution containing iron and at least one member selected from the group consisting of nickel compounds and cobalt compounds providing nickel, cobalt and iron ions for electrodepositing nickel-iron alloys, cobalt-iron alloys or nickel-iron-cobalt alloys, an effective amount of at least one additive; the improvement comprising the presence of at least one complexing compound consisting of a poly-substituted aryl compound containing at least one carboxylic acid group defined as --COOH, another substituent independently selected from hydroxy or carboxy, and one or more substituents independently selec
    Type: Grant
    Filed: June 24, 1977
    Date of Patent: December 12, 1978
    Assignee: M&T Chemicals Inc.
    Inventor: Ronald J. Lash