Patents Represented by Attorney William J. Crossetta
  • Patent number: 4250122
    Abstract: A process for the para-directed chlorination of alkylbenzenes comprises reacting an alkylbenzene with chlorine in the presence of a catalyst mixture previously prepared by the steps of (a) reacting sulfur monochloride with toluene or chlorotoluene in the presence of a Lewis acid catalyst, and (b) reacting the reaction product of step (a) with chlorine.
    Type: Grant
    Filed: September 7, 1979
    Date of Patent: February 10, 1981
    Assignee: Hooker Chemicals & Plastics Corp.
    Inventors: Henry C. Lin, Stephen Robota
  • Patent number: 4238413
    Abstract: The present invention relates to a novel organic compound, (3-trifluoromethyl)-benzoyl cyanide, and a process for the preparation thereof comprising(a) converting (3-trifluoromethyl)-benzotrichloride to the corresponding benzoyl chloride,b) cyanation of the benzoyl chloride to produce the corresponding benzoyl cyanide, (3-trifluoromethyl)-benzoyl cyanide.
    Type: Grant
    Filed: November 7, 1979
    Date of Patent: December 9, 1980
    Assignee: Hooker Chemicals & Plastics Corp.
    Inventors: David Y. Tang, Arthur M. Foster
  • Patent number: 4229378
    Abstract: The present invention provides a novel process for the production of 1-phenyl-3-(3-trifluoromethylphenyl)-2-propanone. The process comprises the steps of:(a) condensing 3-trifluoromethylbenzaldehyde with acetophenone under basic conditions to form a substituted chalcone,(b) epoxidation of the substituted chalcone to produce the corresponding epoxide,(c) converting the epoxide to a chlorohydrin,(d) catalytic hydrogenolysis of the chlorohydrin to produce a diol and subsequently converting the diol into the corresponding alcohol, and(e) oxidizing the alcohol to produce 1-phenyl-3-(3-trifluoromethylphenyl)-2-propanone.
    Type: Grant
    Filed: May 14, 1979
    Date of Patent: October 21, 1980
    Assignee: Hooker Chemicals & Plastics Corp.
    Inventors: David Y. Tang, Arthur M. Foster
  • Patent number: 4228085
    Abstract: The present invention relates to a novel organic compound, phenyl alpha,beta-epoxy-beta-(3-trifluoromethylphenyl)ethyl ketone. This compound may be produced by:(a) condensing 3-trifluoromethylbenzaldehyde with acetophenone under basic conditions to form a substituted chalcone, and(b) epoxidation of the substituted chalcone to produce the corresponding epoxide, phenyl alpha,beta-epoxy-beta-(3-trifluoromethylphenyl)ethyl ketone.
    Type: Grant
    Filed: May 14, 1979
    Date of Patent: October 14, 1980
    Assignee: Hooker Chemicals & Plastics Corp.
    Inventors: David Y. Tang, Arthur M. Foster
  • Patent number: 4215034
    Abstract: Thermoplastic elastomers having fire retardancy and improved properties are provided by incorporating therein, Diels-Alder diadducts of polyhalogenated cyclopentadienes and a substituted or non-substituted furan.
    Type: Grant
    Filed: November 8, 1976
    Date of Patent: July 29, 1980
    Assignee: Hooker Chemicals & Plastics Corp.
    Inventors: Harry W. Marciniak, Richard D. Carlson, James L. Dever
  • Patent number: 4212136
    Abstract: This invention relates to improved abrading elements for honing tools containing a plurality of abrading elements, which may be rotated and/or radially moved in contact with the surface to be honed, the improvement comprising an abrading element embodying an abrasive article, having an abrading face and an opposite, substantially flat, attachment face, in a molded plastic, unitary, support structure, the unitary support structure having a substantially flat support face to which the attachment face of the abrasive article attaches, the support face having voids therein such that from about 70 to 90 percent of the surface area of the attachment face of the abrasive article is in contact with the support face and the support face being resiliently supported by a triangular truss support bridge intimately molded therewith.
    Type: Grant
    Filed: December 15, 1977
    Date of Patent: July 15, 1980
    Assignee: Vonscot Industries
    Inventor: Glenn A. Stertzbach
  • Patent number: 4212819
    Abstract: A process for the preparation of benzoyl halide and meta-halosulfonyl benzoyl halide comprises adding to sulfuric acid and reacting therewith a benzotrihalide compound characterized by the formula: ##STR1## wherein X is bromine or chlorine and Y is individually selected from the group consisting of fluorine, chlorine, bromine, iodine, alkyl, preferably of one to six carbon atoms, halosubstituted alkyl, preferably trichloromethyl or tribromomethyl, aryl, preferably phenyl, and hydrogen, with the proviso that at least one Y substituent at a meta position is hydrogen.
    Type: Grant
    Filed: July 10, 1978
    Date of Patent: July 15, 1980
    Assignee: Hooker Chemicals & Plastics Corp.
    Inventor: F. Howard Day
  • Patent number: 4212998
    Abstract: The present invention relates to a novel organic compound, 1-phenyl-3-(3-trifluoromethylphenyl)-2-propanol. This compound may be produced by:a. condensing 3-trifluoromethylbenzaldehyde with acetophenone under basic conditions to form a substituted chalcone,b. epoxidation of the substituted chalcone to produce the corresponding epoxide,c. converting the epoxide to a chlorohydrin, andd. catalytic hydrogenolysis of the chlorohydrin to produce a diol and subsequently converting the diol into the corresponding alcohol, 1-phenyl-3-(3-trifluoromethylphenyl)-2-propanol.
    Type: Grant
    Filed: May 14, 1979
    Date of Patent: July 15, 1980
    Assignee: Hooker Chemicals & Plastics Corp.
    Inventors: David Y. Tang, Arthur M. Foster
  • Patent number: 4212999
    Abstract: The present invention relates to a novel organic compound, 1-phenyl-3-(3-trifluoromethylphenyl)-1,2-propane diol. This compound may be produced by:(a). condensing 3-trifluoromethylbenzaldehyde with acetophenone under basic conditions to form a substituted chalcone,(b). epoxidation of the substituted chalcone to produce the corresponding epoxide,(c). converting the epoxide to a chlorohydrin, and(d). catalytic hydrogenolysis of the chlorohydrin to produce a diol, 1-phenyl-3-(3-trifluoromethylphenyl)-1,2-propan-diol.
    Type: Grant
    Filed: May 14, 1979
    Date of Patent: July 15, 1980
    Assignee: Hooker Chemicals & Plastics Corp.
    Inventors: David Y. Tang, Arthur M. Foster
  • Patent number: 4211721
    Abstract: A method and a useful catalyst composition for the production of aromatic nitriles for the corresponding nuclearly halogenated aromatic compounds which contain from 1 to 4 halogen atoms substituted selected from chlorine, bromine and iodine are described.The method involves the steps of heating the halogenated aromatic compound to a temperature of at least 100.degree. C. for a period of at least 2 hours in the presence of potassium cyanide and a catalyst composition comprised of:(a) a ether component selected from the group consisting of 18-crown-6 ether, polyethers, alkyoxypolyethers and mixtures thereof having a molecular weight between about 200 and about 25,000, and(b) a palladium salt complex comprised of:(1) a palladium salt selected from palladium iodide, chloride, bromide and mixtures thereof, and(2) an organophosphine selected from the group consisting of alkyarylphosphines and triarylphosphines containing from about 8 to about 80 carbon atoms.
    Type: Grant
    Filed: December 4, 1978
    Date of Patent: July 8, 1980
    Assignee: Hooker Chemicals & Plastics Corp.
    Inventor: Byron R. Cotter
  • Patent number: 4197218
    Abstract: Electrically conductive articles which comprise a non-conductive matrix containing an electrically conductive dispersion of finely divided ferroalloy, silicon alloy, or mixtures thereof, are described. Compositions for making the articles utilizing various non-conductive materials, e.g., plastics, ceramics, and glass, are also described.
    Type: Grant
    Filed: January 23, 1978
    Date of Patent: April 8, 1980
    Assignee: Hooker Chemicals & Plastics Corp.
    Inventor: James P. McKaveney
  • Patent number: 4194072
    Abstract: Flame retardant nylon compositions having improved physical properties and excellent molding characteristics comprise a mixture of about 45 to about 70 weight percent of nylon 6 or nylon 66 or mixture thereof; about 15 to about 25 percent of nylon 612; about 2 to about 10 percent of iron oxide, antimony oxide or zinc oxide or mixture thereof; and about 10 to about 25 percent of bis(hexachlorocyclopentadieno)cyclooctane.
    Type: Grant
    Filed: October 2, 1978
    Date of Patent: March 18, 1980
    Assignee: Hooker Chemicals & Plastics Corp.
    Inventors: Eng P. Chang, Charles S. Ilardo, Eugene L. Slagowski
  • Patent number: 4190609
    Abstract: A process for the production of nuclear chlorinated alkylbenzenes comprises reacting xylene with chlorine in the presence of a Lewis acid catalyst and a co-catalyst comprising a thianthrene compound or a mixture of thianthrene compounds characterized by the formula: ##STR1## where n is 0 to 1, and each X is independently hydrogen, an electron-withdrawing substituent or an electron-donating substituent with the proviso that the total number of electron-donating substituents is no more than four; the total number of electron-withdrawing substituents is at least one and no more than seven; no more than three electron-donating substituents are present at the peri-positions; and when no electron-donating substituents are present on the thianthrene nucleus, at least one electron-withdrawing substituent is present at a peri-position.The process is particularly useful in the preparation of 4-chloro-o-xylene and 4-chloro-m-xylene from o-xylene and m-xylene respectively.
    Type: Grant
    Filed: December 30, 1977
    Date of Patent: February 26, 1980
    Assignee: Hooker Chemicals & Plastics Corp.
    Inventor: Henry C. Lin
  • Patent number: 4188728
    Abstract: A method and apparatus for accurately and variably positioning carrier indexing pins in indexing pegs for indexed registering devices useful in positioning an image, mask or transparency in a step and repeat type printing process.
    Type: Grant
    Filed: June 21, 1977
    Date of Patent: February 19, 1980
    Inventor: LeRoy M. Denning
  • Patent number: 4183873
    Abstract: A process for the preparation of compounds of the formula:R.sub.n Ar(CF.sub.w' X.sub.p').sub.Zcomprises contacting compounds of the formula:R.sub.n Ar(CF.sub.w X.sub.p).sub.Zin the liquid phase, with hydrogen fluoride in the presence of molybdenum chloride whereinAr is arylR is a substituent on the aryl nucleus selected from the group consisting of aryl, substituted aryl, halogen, alkyl, alkoxy, substituted alkyl, and substituted alkoxy;n is 0 to 9;X is halogen atom other than fluorine;w is 0 to 2;p is 1 to 3;w' is 1 to 3, and is greater than w;p' is 0 to 2, and is less than p;w+p is 3;w'+p' is 3;Z is 1-10; andthe maximum value of n+Z is 10.
    Type: Grant
    Filed: June 5, 1978
    Date of Patent: January 15, 1980
    Assignee: Hooker Chemicals & Plastics Corp.
    Inventors: Yusuf A. Baxamusa, Stephen Robota
  • Patent number: 4166012
    Abstract: A process for the preparation of transparent electroconductive coatings on a polymeric substrate comprises:(A) contacting said substrate with a solution of a phenol compound and a chlorinated aliphatic compound,(B) removing the phenol from the surface of the substrate,(C) subjecting the substrate to phosphorus sesquisulfide to deposit phosphorus sesquisulfide in the surface thereof,(D) contacting the phosphorus sesquisulfide treated surface with a solution of a metal salt or complex thereof to form a metal-phosphorus-sulfur coating thereon.
    Type: Grant
    Filed: January 3, 1978
    Date of Patent: August 28, 1979
    Assignee: Hooker Chemicals & Plastics Corp.
    Inventors: Edward J. Quinn, Donald H. Campbell
  • Patent number: 4156747
    Abstract: An improved process for imparting durable flame retardancy to textile materials wherein said material is impregnated with a solution having a poly(hydroxyorgano) phosphonium cation content of from about 10 to about 60 percent by weight and having a pH of from about 2 to about 9, dried to a moisture content of from about 0 to about 8 percent, aerated by passing air through the dried material, cured by polymerizing the monomer on and in the cellulose material with exposure in an enclosed chamber to an atmosphere containing gaseous ammonia and thereafter contacting with water, the improvement comprising, impregnating said textile materials with a nitrogen containing material, contiguous with impregnation with the poly(hydroxyorgano) phosphonium cation containing solution, and, after contacting said material with said water, further exposing said material to an atmosphere containing gaseous ammonia.
    Type: Grant
    Filed: November 18, 1977
    Date of Patent: May 29, 1979
    Assignee: Hooker Chemicals & Plastics Corp.
    Inventor: George M. Wagner
  • Patent number: 4154890
    Abstract: A process for imparting flame retardant property to cellulosic containing materials comprising the steps;(1) treating the cellulosic containing material with a solution containing poly (hydroxy organo) phosphonium cation;(2) exposing the treated cellulosic material to an atmosphere containing ammonia to polymerize the phosphonium compound;(3) treating the cellulosic material containing the polymerized phosphonium compound with a solution containing a poly (hydroxy organo) phosphonium salt and a nitrogen containing compound copolymerizable with said phosphonium halide; and p1 (4) heat curing the phosphonium salt composition.
    Type: Grant
    Filed: January 29, 1977
    Date of Patent: May 15, 1979
    Assignee: Hooker Chemicals & Plastics Corp.
    Inventor: George M. Wagner
  • Patent number: 4141912
    Abstract: Polyhalobenzylic disulfooxonium compounds are produced by the reaction of aromatic methyl, halomethyl or hydroxymethyl substituents with sulfur trioxide. The disulfooxonium salts are readily converted to alcohols by hydrolysis to provide monomers for the production of fire resistant polymers and additives for polymers. Likewise, the disulfooxonium compounds of this invention present chemical intermediates for a wide range of useful products such as halogenated pesticides.
    Type: Grant
    Filed: October 7, 1977
    Date of Patent: February 27, 1979
    Assignee: Hooker Chemicals & Plastics Corp.
    Inventors: Victor Mark, Leon R. Zengierski
  • Patent number: 4139516
    Abstract: A process for the preparation of a thianthrene compound which comprisesA. adding sulfur monochloride to an excess of a selected benzene compound in the presence of aluminum chloride and reacting to form a thianthrene compound: aluminum chloride complex in the reaction medium;B. treating the reaction medium with an alcohol to free the thianthrene compound from the complex and dissolve the aluminum chloride therein;C. separating the thianthrene compound from the reaction medium;Preferred benzene compounds include benzene and substituted benzene compounds, especially halobenzenes, alkylbenzenes, and the like having at least two adjacent ring positions unsubstituted.
    Type: Grant
    Filed: August 5, 1977
    Date of Patent: February 13, 1979
    Assignee: Hooker Chemicals & Plastics Corp.
    Inventor: Henry C. Lin