Patents Represented by Attorney Floyd Trimble
  • Patent number: 4425186
    Abstract: A mixture comprising a cationic surfactant and a dimethylamide of a straight chain carbon carboxylic acid containing 12 to 18 carbon atoms is useful in the treatment of cellulose pulp to reduce inter-fiber bonding, thus obtaining a low mechanical strength pulp sheet and having little or no adverse effects upon the hydrophilic properties of said fibers.
    Type: Grant
    Filed: March 24, 1981
    Date of Patent: January 10, 1984
    Assignee: Buckman Laboratories, Inc.
    Inventors: Oscar W. May, Philip M. Hoekstra
  • Patent number: 4374040
    Abstract: Aminoalkylenephosphonic acids and their alkali metal salts prepared by a reaction utilizing a primary or secondary tetrahydrothiophenamine 1,1-dioxide or the hydrochloride thereof, an aldehyde or a ketone, and orthophosphorous acid are useful in the control of scale and sludge deposition in aqueous systems. When used in combination with known corrosion inhibitors they show synergistic results in inhibiting corrosion of metal surfaces in contact with an aqueous system that is normally corrosive to such metals.
    Type: Grant
    Filed: August 19, 1980
    Date of Patent: February 15, 1983
    Assignee: Buckman Laboratories, Inc.
    Inventors: Joseph G. E. Fenyes, John D. Pera
  • Patent number: 4293559
    Abstract: The present invention relates to certain compositions and processes useful for inhibiting the growth of microorganisms in water and, in particular, water used for industrial purposes; for example, in the manufacture of paper, in cooling water systems in effluent water treatment, and in secondary recovery petroleum operations. The novel processes and compositions of the present invention are processes or mixtures which show unexpected synergistic activity against microorganisms, including bacteria, sulfate-reducing bacteria, fungi, and algae, which produce slime in aqueous systems where such slime is objectionable from either an operational or aesthetic point of view. Specifically, the invention is directed to the use of compositions comprising 2-(thio-cyanomethylthio)benzothiazole and 2'-hydroxyethyl 2,3-dibromopropionate or 2'-hydroxyethyl 2-bromoacrylate.
    Type: Grant
    Filed: March 29, 1978
    Date of Patent: October 6, 1981
    Assignee: Buckman Laboratories, Inc.
    Inventors: John D. Buckman, Stanley J. Buckman, Betty S. Johnson, John D. Pera
  • Patent number: 4285765
    Abstract: The present invention relates to certain compositions and processes useful for inhibiting the growth of microorganisms in water and, in particular, water used for industrial purposes; for example, in the manufacture of paper, in cooling water systems, in effluent water treatment, and in secondary recovery petroleum operations. The novel processes and compositions of the present invention are processes or mixtures which show unexpected synergistic activity against microorganisms, including bacteria, sulfate-reducing bacteria, fungi, and algae, which produce slime in aqueous systems where such slime is objectionable from either an operational or aesthetic point of view. Specifically, the invention is directed to the use of compositions comprising 2-(thiocyanomethylthio)benzothiazole and 2,2-dibromo-3-nitrilopropionamide.
    Type: Grant
    Filed: September 24, 1980
    Date of Patent: August 25, 1981
    Assignee: Buckman Laboratories, Inc.
    Inventors: John D. Pera, Betty S. Johnson
  • Patent number: 4268403
    Abstract: A method for recovering oil from an oil-bearing formation which comprises introducing into said formation to induce displacement of the oil contained therein, a fluid carrier containing from about 0.25 to about 100 parts by weight of a N,N-dimethylamide of a straight chain carboxylic acid per million parts of said fluid carrier, characterized in that said carboxylic acid contains from 12 to 18 carbon atoms. In addition, this invention encompasses the extraction of oil from mining oil sand operations which comprises the addition and then mixing into said sand to induce displacement of the oil contained thereon, a fluid carrier containing the N,N-dimethylamide.
    Type: Grant
    Filed: October 25, 1979
    Date of Patent: May 19, 1981
    Assignee: Buckman Laboratories, Inc.
    Inventors: Robert H. Buckman, Peter J. Young, Miguel L. Pulido
  • Patent number: 4250269
    Abstract: Water-soluble polymeric mixtures prepared by mixing 1 to 10 parts by weight of a quaternary ammonium polymer with 0.5 to 7 parts by weight of a high molecular weight nonionic and/or cationic vinyl-addition polymer, and 0.1 to 5 parts by weight of a nonionic and/or cationic surfactant have utility in many diverse applications.
    Type: Grant
    Filed: November 26, 1979
    Date of Patent: February 10, 1981
    Assignee: Buckman Laboratories, Inc.
    Inventors: Robert H. Buckman, Philip M. Hoekstra, John D. Pera
  • Patent number: 4243524
    Abstract: Aminoalkylenephosphonic acids and their alkali metal salts prepared by a reaction utilizing a primary or secondary tetrahydrothiophenamine 1,1-dioxide or the hydrochloride thereof, an aldehyde or a ketone, and orthophosphorous acid are useful in the control of scale and sludge deposition in aqueous systems. When used in combination with known corrosion inhibitors they show synergistic results in inhibiting corrosion of metal surfaces in contact with an aqueous system that is normally corrosive to such metals.
    Type: Grant
    Filed: August 2, 1979
    Date of Patent: January 6, 1981
    Assignee: Buckman Laboratories, Inc.
    Inventors: Joseph G. E. Fenyes, John D. Pera
  • Patent number: 4234511
    Abstract: Dialkylamino-N,N-bis(phosphonoalkylene)alkylamines, salts, and specifically the hydrochlorides thereof prepared by reacting an unsymmetrical dimethylaminoalkylamine hydrochloride with phosphorous acid and an aldehyde are useful in various industrial processes including acting as corrosion and scale inhibitors in aqueous systems wherein such corrosion and scale problems exist. Quaternized dialkylamino-N,N-bis(phosphonoalkylene)alkylamines suitable for the same uses are prepared by the treatment of an aqueous solution of a dialkylamine-N,N-bis(phosphonoalkylene)alkylamine with an epoxide or a halohydrin.
    Type: Grant
    Filed: July 26, 1979
    Date of Patent: November 18, 1980
    Assignee: Buckman Laboratories, Inc.
    Inventor: John D. Buckman
  • Patent number: 4234665
    Abstract: The penetration properties of creosote and pentachlorophenol oil-borne wood preservative compositions are improved by adding to such compositions an N,N-dimethylamide of a carboxylic acid containing 18 carbon atoms and at least 1 carbon to carbon double bond.
    Type: Grant
    Filed: October 17, 1979
    Date of Patent: November 18, 1980
    Assignee: Buckman Laboratories, Inc.
    Inventor: Titus M. Johnston
  • Patent number: 4181806
    Abstract: Aminoalkylenephosphonic acids and their alkali metal salts prepared by a reaction utilizing a primary or secondary tetrahydrothiophenamine 1,1-dioxide or the hydrochloride thereof, an aldehyde or a ketone, and orthophosphorous acid are useful in the control of scale and sludge deposition in aqueous systems. When used in combination with known corrosion inhibitors they show synergistic results in inhibiting corrosion of metal surfaces in contact with an aqueous system that is normally corrosive to such metals.
    Type: Grant
    Filed: June 9, 1978
    Date of Patent: January 1, 1980
    Assignee: Buckman Laboratories, Inc.
    Inventors: Joseph G. E. Fenyes, John D. Pera
  • Patent number: 4176107
    Abstract: This invention is related to liquid polymer compositions and to methods of preparing these compositions which comprise a high molecular weight water-soluble vinyl addition polymer, water, one or more surfactants, and a water-soluble polyalkylene glycol, or water-soluble ethoxylated alcohol, alkylphenol or fatty acid.
    Type: Grant
    Filed: January 20, 1978
    Date of Patent: November 27, 1979
    Assignee: Buckman Laboratories, Inc.
    Inventors: John D. Buckman, Wood E. Hunter, John D. Pera, Robert M. Taylor
  • Patent number: 4163733
    Abstract: Dimethylaminomethylenebis(phosphonic acid) is prepared by reacting dimethylformamide with phosphorous trichloride and treating the reaction mixture with alcohols or glycols and water. The phosphonic acid is combined with water soluble carboxylic acid polymers for use as a corrosion and scale inhibitor in aqueous systems. These compositions may also be combined with phosphorous acid and water soluble zinc salts.
    Type: Grant
    Filed: October 25, 1977
    Date of Patent: August 7, 1979
    Assignee: Buckman Laboratories, Inc.
    Inventors: John D. Buckman, Gerald D. Mercer, John D. Pera
  • Patent number: 4157364
    Abstract: Dimethylaminomethylenebis(phosphonic acid) is prepared by reacting dimethylformamide with phosphorous trichloride and treating the reaction mixture with alcohols or glycols and water. The phosphonic acid is combined with water soluble carboxylic acid polymers for use as a corrosion and scale inhibitor in aqueous systems. These compositions may also be combined with phosphorous acid and water soluble zinc salts.
    Type: Grant
    Filed: February 8, 1978
    Date of Patent: June 5, 1979
    Assignee: Buckman Laboratories, Inc.
    Inventors: John D. Buckman, Gerald D. Mercer, John D. Pera
  • Patent number: 4054542
    Abstract: Cationic, water-soluble, amine-epichlorohydrin polymeric compositions formed by reacting polymeric bis(3-chloro-2-hydroxypropyl) amines with tertiary amines are useful in papermaking processes, in water purification processes, textile manufacturing processes, and for the control of pests such as algae, bacteria and fungi.
    Type: Grant
    Filed: March 10, 1976
    Date of Patent: October 18, 1977
    Assignee: Buckman Laboratories, Inc.
    Inventors: John D. Buckman, Stanley J. Buckman, Gerald D. Mercer, John D. Pera
  • Patent number: 4018592
    Abstract: Poly[2-hydroxyethylene(dimethyliminio)ethylene(dimethyliminio)methylene dichloride] prepared by the reaction of N, N, N', N'-tetramethylethylenediamine with hydrochloric acid and epichlorohydrin is useful as an algicide.
    Type: Grant
    Filed: July 21, 1975
    Date of Patent: April 19, 1977
    Assignee: Buckman Laboratories, Inc.
    Inventors: Stanley J. Buckman, Gerald D. Mercer
  • Patent number: 3976495
    Abstract: The preparation of 3',5'-dihalo-4'-hydroxyacetophenones and their use as fungicides are described.
    Type: Grant
    Filed: July 10, 1974
    Date of Patent: August 24, 1976
    Assignee: Buckman Laboratories, Inc.
    Inventors: Stanley J. Buckman, Joseph G. E. Fenyes, John D. Pera, Lester A. Wienert
  • Patent number: 3973034
    Abstract: Pesticidal compositions comprised of alkali-metal salts of hydroxymethyldithiocarbamic acids in aqueous media are stabilized by addition of alkaline material thereto.
    Type: Grant
    Filed: May 28, 1974
    Date of Patent: August 3, 1976
    Assignee: Buckman Laboratories, Inc.
    Inventors: John D. Buckman, John D. Pera
  • Patent number: 3959328
    Abstract: Halogenated propyl esters of cyanodithioimidocarbonic acid are useful for inhibiting the growth and proliferation of bacteria, fungi and nematodes.
    Type: Grant
    Filed: April 14, 1975
    Date of Patent: May 25, 1976
    Assignee: Buckman Laboratories, Inc.
    Inventors: Stanley J. Buckman, Joseph G. E. Fenyes, John D. Pera
  • Patent number: 3946061
    Abstract: Organo-silica polymers having the formula: ##EQU1## WHEREIN M AND N ARE INTEGERS INDEPENDENTLY REPRESENTING THE NUMBER OF UNITS; R represents --H, --CN, --CONH.sub.2, --CONH.sub.3 .sup.+, --COOH, --COO.sup.-, --COOM, or --COOR"; R' represents --NH--, --NH.sub.2 --.sup.+, --NR"--, --NR"H--.sup.+, or --CH.sub.2 --CHR--; --CH.sub.2 --CHR--; and whenever R' contains nitrogen, R is hydrogen; R" represents an alkyl or aryl radical; M represents an alkali metal; X represents an --OH, --O.sup.-, or --OM; are suitable as sequestering, dispersing, and flocculating agents.
    Type: Grant
    Filed: February 17, 1971
    Date of Patent: March 23, 1976
    Assignee: Buckman Laboratories, Inc.
    Inventors: Stanley J. Buckman, Rudolf F. Lang, Michael L. Mishler