Patents Represented by Attorney Floyd Trimble
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Patent number: 4425186Abstract: 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: GrantFiled: March 24, 1981Date of Patent: January 10, 1984Assignee: Buckman Laboratories, Inc.Inventors: Oscar W. May, Philip M. Hoekstra
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Patent number: 4374040Abstract: 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: GrantFiled: August 19, 1980Date of Patent: February 15, 1983Assignee: Buckman Laboratories, Inc.Inventors: Joseph G. E. Fenyes, John D. Pera
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Patent number: 4293559Abstract: 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: GrantFiled: March 29, 1978Date of Patent: October 6, 1981Assignee: Buckman Laboratories, Inc.Inventors: John D. Buckman, Stanley J. Buckman, Betty S. Johnson, John D. Pera
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Patent number: 4285765Abstract: 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: GrantFiled: September 24, 1980Date of Patent: August 25, 1981Assignee: Buckman Laboratories, Inc.Inventors: John D. Pera, Betty S. Johnson
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Patent number: 4268403Abstract: 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: GrantFiled: October 25, 1979Date of Patent: May 19, 1981Assignee: Buckman Laboratories, Inc.Inventors: Robert H. Buckman, Peter J. Young, Miguel L. Pulido
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Patent number: 4250269Abstract: 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: GrantFiled: November 26, 1979Date of Patent: February 10, 1981Assignee: Buckman Laboratories, Inc.Inventors: Robert H. Buckman, Philip M. Hoekstra, John D. Pera
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Patent number: 4243524Abstract: 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: GrantFiled: August 2, 1979Date of Patent: January 6, 1981Assignee: Buckman Laboratories, Inc.Inventors: Joseph G. E. Fenyes, John D. Pera
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Patent number: 4234511Abstract: 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: GrantFiled: July 26, 1979Date of Patent: November 18, 1980Assignee: Buckman Laboratories, Inc.Inventor: John D. Buckman
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Patent number: 4234665Abstract: 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: GrantFiled: October 17, 1979Date of Patent: November 18, 1980Assignee: Buckman Laboratories, Inc.Inventor: Titus M. Johnston
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Patent number: 4181806Abstract: 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: GrantFiled: June 9, 1978Date of Patent: January 1, 1980Assignee: Buckman Laboratories, Inc.Inventors: Joseph G. E. Fenyes, John D. Pera
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Patent number: 4176107Abstract: 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: GrantFiled: January 20, 1978Date of Patent: November 27, 1979Assignee: Buckman Laboratories, Inc.Inventors: John D. Buckman, Wood E. Hunter, John D. Pera, Robert M. Taylor
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Patent number: 4163733Abstract: 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: GrantFiled: October 25, 1977Date of Patent: August 7, 1979Assignee: Buckman Laboratories, Inc.Inventors: John D. Buckman, Gerald D. Mercer, John D. Pera
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Patent number: 4157364Abstract: 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: GrantFiled: February 8, 1978Date of Patent: June 5, 1979Assignee: Buckman Laboratories, Inc.Inventors: John D. Buckman, Gerald D. Mercer, John D. Pera
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Patent number: 4054542Abstract: 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: GrantFiled: March 10, 1976Date of Patent: October 18, 1977Assignee: Buckman Laboratories, Inc.Inventors: John D. Buckman, Stanley J. Buckman, Gerald D. Mercer, John D. Pera
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Patent number: 4018592Abstract: 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: GrantFiled: July 21, 1975Date of Patent: April 19, 1977Assignee: Buckman Laboratories, Inc.Inventors: Stanley J. Buckman, Gerald D. Mercer
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Patent number: 3976495Abstract: The preparation of 3',5'-dihalo-4'-hydroxyacetophenones and their use as fungicides are described.Type: GrantFiled: July 10, 1974Date of Patent: August 24, 1976Assignee: Buckman Laboratories, Inc.Inventors: Stanley J. Buckman, Joseph G. E. Fenyes, John D. Pera, Lester A. Wienert
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Patent number: 3973034Abstract: Pesticidal compositions comprised of alkali-metal salts of hydroxymethyldithiocarbamic acids in aqueous media are stabilized by addition of alkaline material thereto.Type: GrantFiled: May 28, 1974Date of Patent: August 3, 1976Assignee: Buckman Laboratories, Inc.Inventors: John D. Buckman, John D. Pera
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Patent number: 3959328Abstract: Halogenated propyl esters of cyanodithioimidocarbonic acid are useful for inhibiting the growth and proliferation of bacteria, fungi and nematodes.Type: GrantFiled: April 14, 1975Date of Patent: May 25, 1976Assignee: Buckman Laboratories, Inc.Inventors: Stanley J. Buckman, Joseph G. E. Fenyes, John D. Pera
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Patent number: 3946061Abstract: 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: GrantFiled: February 17, 1971Date of Patent: March 23, 1976Assignee: Buckman Laboratories, Inc.Inventors: Stanley J. Buckman, Rudolf F. Lang, Michael L. Mishler