Patents Assigned to Uniroyal Chemical Company
  • Wood preservative oxathiazines
    Patent number: 6372297
    Abstract: The present invention provides certain 3-aryl-5,6-dihydro-1,4,2-oxathiazines and their oxides, useful for the long-term preservation of wood and composite wood materials against wood damaging and wood destroying materials. The present invention also provides compositions containing these 3-aryl-5,6-dihydro-1,4,2-oxathiazines and their oxides, and a suitable vehicle therefor. A method of preserving wood is also disclosed in which a fungicidally or bactericidally effective amount of the present 3-aryl-5,6-dihydro-1,4,2-oxathiazines and their oxides, are applied to the wood substrate to be protected.
    Type: Grant
    Filed: November 12, 1997
    Date of Patent: April 16, 2002
    Assignees: Uniroyal Chemical Company, Inc., Crompton Co./Cie
    Inventors: Robert Allan Davis, Alex R. A. Valcke, Walter Gerhard Brouwer
  • Stabilized polyether polyol and polyurethane foam obtained therefrom
    Patent number: 6348514
    Abstract: Disclosed is an isocyanate-reactive composition comprising an isocyanate-reactive compound having an equivalent weight of from about 400 to about 12000, and a stabilizing amount of methyl 3-(4-hydroxy-3,5-di-tert-butylphenyl)propionate with optional costabilizers selected from another phenolic, an amine, a phosphite, a thioether, or a lactone stabilizer to form a stabilizer package which may be further used in a process for preparing a flexible polyurethane foam comprising reacting together an organic polyisocyanate with an isocyanate-reactive composition in the presence of a blowing agent to form the polyurethane foam.
    Type: Grant
    Filed: March 1, 2000
    Date of Patent: February 19, 2002
    Assignee: Uniroyal Chemical Company, Inc.
    Inventors: Ronald A. Calabrese, Rosemarie A. Boccuzzi
  • Nitroaromatic solubilizer for nitroxyls in aromatic solvents
    Patent number: 6344560
    Abstract: A nitroaromatic compound is used to enhance the solubility of a nitroxyl compound in an aromatic hydrocarbon solvent.
    Type: Grant
    Filed: May 3, 2000
    Date of Patent: February 5, 2002
    Assignee: Uniroyal Chemical Company, Inc.
    Inventors: Brendan J. Geelan, Brigitte Benage, Gerald J. Abruscato, Kirk A. Schlup, Ruben S. Grewal, Andrew J. Eisenstein
  • Low cost, resilient, shear resistant polyurethane elastomers for golf ball covers
    Patent number: 6309313
    Abstract: Disclosed herein is a golf ball comprising a core and a cover, said cover comprising a polyurethane elastomer comprising the reaction product of: A) at least one diisocyanate monomer; B) at least one polyether polyol having a molecular weight greater than 1000 and selected from the group consisting of homopolymers of ethylene oxide, homopolymers of propylene oxide, and copolymers of ethylene oxide and propylene oxide; and C) at least one hydroxy or amine functional chain extender; wherein the ratio of equivalents of chain extender plus polyol to equivalents of isocyanate is in the range of from about 0.6:1 to about 1.2:1, whereby said polyurethane elastomer possesses high shear resistance and good resilience.
    Type: Grant
    Filed: March 6, 2000
    Date of Patent: October 30, 2001
    Assignee: Uniroyal Chemical Company, Inc.
    Inventor: Thomas H. Peter
  • Process for the preparation and uses of derivatives of esters of &agr;-methylene-&bgr;-hydroxy acids
    Patent number: 6310237
    Abstract: A process for the preparation of derivatives of halo-but-2-enoic acids and esters high in 2-ene content, several of which are novel. The esters and their derivatives are useful as promoters for the polymerization of ethylene or the copolymerization of ethylene with &agr;-olefins and, optionally, nonconjugated polyenes. The promoters can also be combined with transition metal compounds, e.g., vanadium, to form combination promoter-catalyst compounds.
    Type: Grant
    Filed: July 18, 2000
    Date of Patent: October 30, 2001
    Assignee: Uniroyal Chemical Company, Inc.
    Inventors: Xu Wu Feng, Walter Nudenberg
  • Inhibition of polymerization of ethylenically unsaturated monomers
    Patent number: 6300533
    Abstract: Disclosed herein is a method for inhibiting the premature polymerization of ethylenically unsaturated monomers comprising adding to said monomers an effective amount of an inhibitor having the structural formula: wherein R1 and R4 are independently selected from the group consisting of hydrogen, alkyl, and heteroatom-substituted alkyl and R2 and R3 are independently selected from the group consisting of alkyl and heteroatom-substituted alkyl and the  portion represents the atoms necessary to form a five-, six-, or seven-membered heterocyclic ring, at least one of said atoms being a carbon atom substituted with a primary, secondary, or tertiary amino group.
    Type: Grant
    Filed: August 16, 1999
    Date of Patent: October 9, 2001
    Assignee: Uniroyal Chemical Company, Inc.
    Inventors: Brigitte Benage, Angela M. Edwards, Vilen Kosover, Gan Wang, Anthony Gentile, Jesus Fabian, Gerald J. Abruscato
  • Method for controlling fungi using phenylhydrazine derivatives
    Patent number: 6297275
    Abstract: A method for controlling fungi using a phenylhydrazine derivative compound of the formula: wherein: X is phenyl, phenylalkoxy, phenoxy, or benzyl, alone or in combination with one or more halogen, alkyl, or alkylthio; Y is hydrogen, alkanoyl, haloalkanoyl, or alkoxy carbonyl; and R is hydrogen, alkyl, haloalkyl, alkoxy, haloalkoxy, or phenylalkoxy.
    Type: Grant
    Filed: September 7, 1999
    Date of Patent: October 2, 2001
    Assignees: Uniroyal Chemical Company, Inc., Crompton Co./Cie
    Inventors: Mark Achiel Dekeyser, Kenneth Wesley Seebold, Jr., Gaik-Lean Chee
  • Processing of coupled, filled polyolefins
    Patent number: 6288144
    Abstract: A method for reducing the reaction with metal surfaces of a coupled, filled polyolefin comprising the step of including in the formulation of said coupled, filled polyolefin from about 0.01 to about 1.0 weight percent of an organomodified polysiloxane.
    Type: Grant
    Filed: April 20, 1999
    Date of Patent: September 11, 2001
    Assignee: Uniroyal Chemical Company, Inc.
    Inventors: Darilyn Roberts, Paul Davidson
  • Method of stabilizing unsaturated organic compounds from polymerization
    Patent number: 6287483
    Abstract: A method for stabilizing an unsaturated polymerizable organic compound from premature polymerization includes addition thereto of an imidazoline or imidazolidine compound, optionally with ring substituents including hydroxyl, oxyl, or oxide moieties as well as aliphatic, alicyclic and/or heterocyclic moieties.
    Type: Grant
    Filed: May 26, 1998
    Date of Patent: September 11, 2001
    Assignee: Uniroyal Chemical Company, Inc.
    Inventors: John M. DeMassa, Stephen M. Fagan
  • Thermoplastic resins stabilized by blends of sterically hindered phenols, secondary amines, and thioethers
    Patent number: 6277907
    Abstract: A method is disclosed for stabilizing a thermoplastic resin, which may also contain carbon black and/or glass, wherein the method comprises adding to the resin a stabilizing amount of at least one sterically hindered phenol antioxidant, at least one secondary amine antioxidant and/or at least one N,N′-substituted oxamide antioxidant, and at least one thioether antioxidant.
    Type: Grant
    Filed: November 9, 1998
    Date of Patent: August 21, 2001
    Assignee: Uniroyal Chemical Company, Inc.
    Inventor: Michael E. Gelbin
  • Test method for evaluating soluble polymer growth when recycling inhibitor streams
    Patent number: 6274683
    Abstract: An improvement in a method for evaluating the efficiency of polymerization inhibitors is disclosed, wherein the improvement comprises: A) producing dissolved polymer in a solution comprising monomer and at least one inhibitor by means of any test known in the art to be useful for evaluating polymerization inhibitors, B) collecting the polymer-containing solution, C) measuring the degree of polymerization of the monomer in the collected solution, and D) re-subjecting the polymer-containing solution to the test conditions of A).
    Type: Grant
    Filed: June 30, 1999
    Date of Patent: August 14, 2001
    Assignee: Uniroyal Chemical Company, Inc.
    Inventors: Brigitte Benage, Brendan J. Geelan, Gerald J. Abruscato
  • Process for making N-alkyl bis(2-pyridyl) sulfenimides
    Patent number: 6245912
    Abstract: There is disclosed a process for the preparation of sulfenimides comprising: mixing, in a hydrocarbon solvent, a sulfenamide of the formula with an aldehyde of the formula R4CHO where X is a sulfur atom, a —C═N— group, or a —C═C— group, R1 and R2 are independently selected from the group consisting of hydrogen, alkyl, and aryl or may be joined to form a saturated or unsaturated ring or aromatic ring, R3 is alkyl or cycloalkyl, and R4 is a hydrocarbon radical wherein the carbon bearing the aldehyde function is bonded only to other carbon atoms, a substituted or unsubstituted aryl ring, or a heteroaromatic ring; and heating the mixture at a temperature and for a period of time sufficient to convert the sulfenamide to the sulfenimide.
    Type: Grant
    Filed: October 12, 2000
    Date of Patent: June 12, 2001
    Assignee: Uniroyal Chemical Company, Inc.
    Inventors: Joseph F. Stieber, Franklin H. Barrows
  • Chemical pinching method and composition
    Patent number: 6245712
    Abstract: A method of inhibiting the growth of suckers in tobacco plants which comprises applying to said tobacco plants after topping an effective amount of a composition comprising saturated fatty alcohols and polyoxyethylene sorbitan esters.
    Type: Grant
    Filed: October 21, 1999
    Date of Patent: June 12, 2001
    Assignee: Uniroyal Chemical Company, Inc.
    Inventors: Robert P. Wiley, Maria J. McKelvie, Bruno Folchi
  • Enhancement of seed/fruit/nut yields from flowering plants
    Patent number: 6242385
    Abstract: A method for increasing the seed/fruit/nut yield of a flowering plant is disclosed wherein the method comprises treating said plant with a phenylurea of the structure wherein R10, R11, R12, R13, and R14 are independently selected from the group consisting of hydrogen, halogen, alkyl, alkenyl, alkoxy, aryl, aryloxy, nitro, cyano, alkylthio, alkylsulfinyl, alkylsulfonyl, and alkylenedioxy.
    Type: Grant
    Filed: February 28, 2000
    Date of Patent: June 5, 2001
    Assignee: Uniroyal Chemical Company, Inc.
    Inventors: Robert Timothy Weiland, Richard John Strunk
  • Nylon modifiers having enhanced flow properties
    Patent number: 6235840
    Abstract: An impact modifier for thermoplastic polyamides comprises: (A) an elastomeric olefin copolymer; and (B) a resinous olefin homopolymer or copolymer wherein at least one of (A) and (B) is maleated; and wherein the melt flow index of the resulting composition measured at 230° C. and 2.16 kg weight is at least 3 g per 10 minutes.
    Type: Grant
    Filed: March 22, 2000
    Date of Patent: May 22, 2001
    Assignee: Uniroyal Chemical Company, Inc.
    Inventors: Seshan Thiruvengada, Robert C. Constable
  • Preparation of substituted aromatic amines
    Patent number: 6229035
    Abstract: A method for producing aromatic amines such as N-phenyl-p-phenylenediamine is disclosed wherein an amine substituted aromatic such as aniline is oxidized with oxygen or hydrogen peroxide in the presence of a preferred alkali metal pentacyano ferrate(II) complex made using water soluble ferrous salts with a non-oxidizing anion, preferably, ferrous sulfate, and containing various water soluble ligands, such as ammonia, mono alkyl amine, dialkyl amines, and trialkyl amines. The complex is subsequently catalytically reduced by hydrogenation using certain heterogeneous metal catalysts to yield the desired aromatic amine.
    Type: Grant
    Filed: June 16, 1999
    Date of Patent: May 8, 2001
    Assignee: Uniroyal Chemical Company, Inc.
    Inventors: Edward L. Wheeler, Mark W. Simon
  • Process for producing polyolefin elastomer employing a metallocene catalyst
    Patent number: 6225426
    Abstract: A liquid phase polymerization process is provided for producing a polyolefin elastomer, e.g., one derived from ethylene, another &agr;-olefin such as propylene and optionally, a diene, employing a metallocene catalyst. The process comprises contacting monomer under liquid phase polymerization conditions with a catalyst composition obtained by combining (a) a metallocene procatalyst, preferably one containing a bridging group possessing at least two bulky groups, and (b) a cocatalyst such as aluminoxane, preferably a cation-generating cocatalyst, in partial or total replacement of aluminoxane.
    Type: Grant
    Filed: April 10, 1996
    Date of Patent: May 1, 2001
    Assignee: Uniroyal Chemical Company, Inc.
    Inventors: Daniel J. Gillis, Richard Karpeles
  • Olefin polymerization process employing metallocene catalyst provided by cocatalyst activation of a metallocene procatalyst
    Patent number: 6225427
    Abstract: A polyolefin elastomer possessing a unique combination of properties, i.e., high molecular weight (Mw), high Mooney viscosity (ML1+4 at 125° C.), low polydispersity index (Mw/Mn) and low glass transition temperature (Tg), is obtained by a polymerization process employing a particular type of a metallocene catalyst. The polyolefin elastomer is useful for manufacturing a variety of products including rubber articles such as hoses, belts and moldings, polymer blends containing one or more other hydrocarbon polymers and lubricating oils in which the elastomer functions as a viscosity modifier. Also disclosed is a cocatalyst for activating the metallocene procatalyst employing a specific molar ratio of the components of the cocatalyst to the transition metal of the procatalyst.
    Type: Grant
    Filed: October 15, 1998
    Date of Patent: May 1, 2001
    Assignee: Uniroyal Chemical Company, Inc.
    Inventors: Willie C. Burton, Xu Wu Feng, Daniel Gillis
  • High resilience, high clarity polyurethane elastomer
    Patent number: 6221999
    Abstract: A cast polyurethane elastomer possessing a resilience of at least about 50 percent and a clarity index of at least 80 percent is obtained by subjecting to polyurethane elastomer-forming conditions a polyurethane elastomer-forming reaction mixture comprising: a) an isocyanate selected from the group consisting of diphenyl methane diisocyanate, isocyanate obtained from the reaction of polyether diol with MDI and mixtures thereof wherein at least a major proportion by weight of the diphenyl methane diisocyanate is the 4,4′-diphenyl methane diisocyanate isomer; b) at least one polyether diol; and, c) at least one diol chain extender of the general formula: HO—(CH2)x—OH wherein x is an integer from 5 to about 16.
    Type: Grant
    Filed: September 10, 1999
    Date of Patent: April 24, 2001
    Assignee: Uniroyal Chemical Company, Inc.
    Inventor: Thomas H. Peter
  • Benzoquinoneimines as vinyl aromatic polymerization inhibitors
    Patent number: 6222080
    Abstract: This invention relates to a vinyl aromatic, especially styrene, polymerization inhibitor system comprising an N-phenyl-1,4-benzoquinoneimine compound and optionally an aryl-substituted phenylenediamine.
    Type: Grant
    Filed: December 14, 1999
    Date of Patent: April 24, 2001
    Assignee: Uniroyal Chemical Company, Inc.
    Inventors: Howard Stephen Friedman, Paul Edwin Stott