Patents Represented by Attorney Joel G. Ackerman

Find this attorney in the Justia Lawyer Directory

  • Process for treating liquid chlorinated hydrocarbon wastes containing iron
    Patent number: 4614643
    Abstract: Ferric chloride contained in liquid waste streams comprising higher boiling chlorinated hydrocarbons may be substantially reduced by contacting the waste stream with an amount of water sufficient to convert a substantial amount of the ferric chloride in said stream to solid ferric chloride hexahydrate, and then removing the solid hexahydrate from the waste stream for instance by filtration.
    Type: Grant
    Filed: December 8, 1982
    Date of Patent: September 30, 1986
    Assignee: Stauffer Chemical Company
    Inventor: Elliott P. Doane
  • S-propargyl trithiophosphonate insecticides for use in soil
    Patent number: 4614735
    Abstract: Compounds having the formula ##STR1## in which R.sub.1 is methyl or ethyl and R.sub.2 is ethyl or a C.sub.3 -C.sub.5 branched alkyl group other than 1,2-dimethylpropyl, are effective soil insecticides.
    Type: Grant
    Filed: December 24, 1984
    Date of Patent: September 30, 1986
    Assignee: Stauffer Chemical Company
    Inventor: Alexandra B. Shortt
  • Amidomethyl ester herbicides
    Patent number: 4589907
    Abstract: Compounds having the formula ##STR1## in which Z is ##STR2## wherein X is hydrogen or halogen and Y is --CH or N; R is alkyl, phenyl, trihalomethylphenyl, cyanomethyl, carboalkoxymethyl, ##STR3## alkenyl; and R.sub.1 is hydrogen, lower alkyl, halo-(lower alkyl), or Z; and intermediate alkyl onium salts of the type ##STR4## in which R.sub.3 is C.sub.1 -C.sub.8 alkyl, G is nitrogen or phosphorus and Z' is ##STR5## wherein X is hydrogen or halogen and Y is --CH or N; are herbicides.
    Type: Grant
    Filed: September 17, 1985
    Date of Patent: May 20, 1986
    Assignee: Stauffer Chemical Company
    Inventor: Raymond A. Felix
  • S-dithiocarbamoylmethyl trithiophosphonate insecticides, compositions and use
    Patent number: 4588714
    Abstract: Compounds and compositions containing them, for insecticidal control having the formula ##STR1## in which R.sub.1 is an alkyl group having from 1 to 3 carbon atoms, R.sub.2 is an alkyl group having from 1 to 6 carbon atoms, and R.sub.3 and R.sub.4 are independently alkyl groups having from 1 to 6 carbon atoms, or R.sub.3 and R.sub.4 taken together form a ring having the formula ##STR2## in which m and n are each integers from 1 to 3 and X is oxygen or --CH.sub.2 --, together with insecticidal compositions containing such compounds, and methods for controlling insects.
    Type: Grant
    Filed: January 3, 1984
    Date of Patent: May 13, 1986
    Assignee: Stauffer Chemical Company
    Inventors: William G. Haag, Charles G. Chavdarian
  • Halogenated esters of pyridine alkanols and their amine salts as insect repellents
    Patent number: 4579850
    Abstract: Compounds having the formula ##STR1## in which R is hydrogen or C.sub.1 -C.sub.4 alkyl; R.sub.1 is halo-(C.sub.2 -C.sub.5 alkyl); halo-(C.sub.2 -C.sub.5 alkenyl) or halo-(1-methyl-cyclopropyl); and n is an integer from 1 to 3, and their amine salts are insect repellents.
    Type: Grant
    Filed: February 25, 1985
    Date of Patent: April 1, 1986
    Assignee: Stauffer Chemical Company
    Inventor: Rayman Y. Wong
  • S-Aralkyltrithiophosphonate insecticides
    Patent number: 4565809
    Abstract: Compounds having the formula ##STR1## in which R.sub.1 is C.sub.1 -C.sub.3 alkyl; R.sub.2 is C.sub.3 -C.sub.6 alkyl; R.sub.3 is hydrogen, halo, trifluoromethyl, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy, phenoxy, cyano, nitro or C.sub.2 -C.sub.5 carboalkoxy; n is an integer from 1 to 5; --A-- is ##STR2## R.sub.4 is hydrogen, C.sub.1 -C.sub.4 alkyl, or --CH.sub.2 Y; m is 0 or 1; and Y is halo, are insecticides.
    Type: Grant
    Filed: June 4, 1984
    Date of Patent: January 21, 1986
    Assignee: Stauffer Chemical Co.
    Inventors: Charles G. Chavdarian, David B. Kanne
  • Corynebacterium plasmid and vector
    Patent number: 4559308
    Abstract: Plasmids derived from Corynebacterium glutamicum, particularly pRN3.1, of suitable size, about 3.1 kilobases in length and weight about 2.0.times.10.sup.6 daltons, and having a limited number of restriction sites therein, suitable as vehicles for genetic engineering of Corynebacterium.
    Type: Grant
    Filed: January 27, 1983
    Date of Patent: December 17, 1985
    Assignee: Stauffer Chemical Co.
    Inventors: Robert C. Nutter, Lucy C. Panganiban
  • Pyridylpropyl carbamates as insect repellents
    Patent number: 4555515
    Abstract: Compounds having the formula ##STR1## in which R.sub.1 is hydrogen or C.sub.1 -C.sub.4 alkyl and R.sub.2 and R.sub.3 are C.sub.1 -C.sub.4 alkyl are insect repellents.
    Type: Grant
    Filed: February 25, 1985
    Date of Patent: November 26, 1985
    Assignee: Stauffer Chemical Co.
    Inventor: Rayman Y. Wong
  • Pyridylpropyl cyclohexene carboxylates as insect repellents
    Patent number: 4554277
    Abstract: Compounds having the formula ##STR1## in which R is hydrogen or C.sub.1 -C.sub.4 alkyl are insect repellents.
    Type: Grant
    Filed: February 25, 1985
    Date of Patent: November 19, 1985
    Assignee: Stauffer Chemical Co.
    Inventor: Rayman Y. Wong
  • Insect repellent: 1-(3-phenoxy)-propyl-2,3-dibromopropionate
    Patent number: 4552896
    Abstract: The title compound, 1-(3-phenoxy-propyl-2,3-dibromopropionate, ##STR1## is an insect repellent.
    Type: Grant
    Filed: June 6, 1984
    Date of Patent: November 12, 1985
    Assignee: Stauffer Chemical Co.
    Inventor: Nathan S. Bunker
  • S-Dithiocarbamoylmethyl trithiophosphonate insecticides, compositions and use
    Patent number: 4552870
    Abstract: Compounds and compositions containing them, for insecticidal control having the formula ##STR1## in which R.sub.1 is an alkyl group having from 1 to 3 carbon atoms, R.sub.2 is an alkyl group having from 1 to 6 carbon atoms, and R.sub.3 and R.sub.4 are independently alkyl groups having from 1 to 6 carbon atoms, or R.sub.3 and R.sub.4 taken together form a ring having the formula ##STR2## in which m and n are each integers from 1 to 3 and X is oxygen or --CH.sub.2 --, together with insecticidal compositions containing such compounds, and methods for controlling insects.
    Type: Grant
    Filed: May 10, 1985
    Date of Patent: November 12, 1985
    Assignee: Stauffer Chemical Co.
    Inventors: William G. Haag, Charles G. Chavdarian
  • Method for conducting a chemical process in a packed multi-tubular reactor
    Patent number: 4551325
    Abstract: A method for conducting a chemical process in which a feed containing at least one liquid is introduced into a vessel containing a plurality of packed, vertically arranged tubes, and in which at least one liquid product and at least one gaseous product are obtained, in which the tubes and a space above them are kept flooded with liquid by controlled removal of liquid product from the lower portion of the vessel.
    Type: Grant
    Filed: November 7, 1983
    Date of Patent: November 5, 1985
    Assignee: Stuaffer Chemical Company
    Inventors: Carlo G. Alesandrini, Jr., Louie A. Nady
  • Bis-alkylene trithiophosphonate insecticides
    Patent number: 4548930
    Abstract: Compounds and compositions containing them, for insecticidal control have the formula ##STR1## in which R is an alkylene group having from 1 to 5 carbon atoms; R.sub.1 and R.sub.2 are methyl or ethyl; and R.sub.3 and R.sub.4 are independently n-propyl, branched chain alkyl groups having 3 or 4 carbon atoms, and branched alkyl groups having 5 carbon atoms and a branching at the .alpha.- or .beta.-carbon atom.
    Type: Grant
    Filed: December 27, 1983
    Date of Patent: October 22, 1985
    Assignee: Stauffer Chemical Company
    Inventors: Alexandra B. Shortt, William G. Haag
  • Organomagnesium solutions of low viscosity
    Patent number: 4547477
    Abstract: The viscosity of hydrocarbon solutions of dialkylmagnesium compounds are reduced by using a reducing agent comprising a defined benzene derivative, a substance produced by reacting such a benzene derivative with magnesium or a dialkylmagnesium compound or a mixture of one of the foregoing with an organoaluminum viscosity reducing agent.
    Type: Grant
    Filed: March 21, 1984
    Date of Patent: October 15, 1985
    Assignee: Texas Alkyls, Inc.
    Inventors: Dennis B. Malpass, Dale W. Webb
  • S-2-(Carboalkoxyvinyl) trithiophosphonate insecticides
    Patent number: 4544651
    Abstract: Compounds for insecticidal control, having the formula ##STR1## in which R.sub.1 is methyl or ethyl; R.sub.2 is a straight or branched chain alkyl group having from 3 to 5 carbon atoms; R.sub.3 is hydrogen, methyl or carbomethoxy; and R.sub.4 is an alkyl group having from 1 to 4 carbon atoms, together with insecticidal compositions containing such compounds, and methods for controlling insects.
    Type: Grant
    Filed: April 16, 1984
    Date of Patent: October 1, 1985
    Assignee: Stauffer Chemical Company
    Inventors: Charles G. Chavdarian, William G. Haag
  • Process for treating liquid chlorinated hydrocarbon wastes containing iron
    Patent number: 4533473
    Abstract: Iron, such as ferric chloride, and other metallic impurities, contained in liquid chlorinated hydrocarbon waste streams, is removed by treatment of such streams with dilute aqueous mineral acid.
    Type: Grant
    Filed: February 2, 1984
    Date of Patent: August 6, 1985
    Assignee: Stauffer Chemical Company
    Inventors: William M. Burks, Jr., Elliott P. Doane, Ramsey G. Campbell, Emilio S. Velez
  • Insect repellent compounds
    Patent number: 4529598
    Abstract: Compounds having the formula ##STR1## in which R is C.sub.3 -C.sub.5 alkyl or C.sub.3 -C.sub.5 alkenyl and n is an integer from 1 to 3, are effective to repel insects.
    Type: Grant
    Filed: September 10, 1979
    Date of Patent: July 16, 1985
    Assignee: Stauffer Chemical Company
    Inventor: Rayman Y. Wong
  • Process for the production of arylsulfonyl isocyanates
    Patent number: 4485053
    Abstract: Arylsulfonyl isocyanates are prepared by reaction of an arylsulfonylamine with thionyl chloride and chlorocarbonylsulfenyl chloride in the presence of a catalytic amount of a tertiary base. The isocyanates may be used as intermediates in the production of herbicides or pharmaceutically active compounds.
    Type: Grant
    Filed: April 18, 1983
    Date of Patent: November 27, 1984
    Assignee: Stauffer Chemical Company
    Inventor: Donald R. James
  • Treatment of contaminated phosphoric acid to recover usable acid therefrom
    Patent number: 4483838
    Abstract: Phosphoric acid containing organic contaminants, such as phosphoric acid recovered from a thiophenol process, is treated to recover usable acid by conducting a hot separation of the contaminated acid into acidic and organic phases, removing the organic phase, preheating the acidic phase, stripping the latter with steam and removing any remaining organic contaminants from the stripped acid.
    Type: Grant
    Filed: September 21, 1983
    Date of Patent: November 20, 1984
    Assignee: Stauffer Chemical Company
    Inventor: Donald L. Sculthorpe
  • Removal of acetylene from products of 1,2-dichloroethane pyrolysis
    Patent number: 4482770
    Abstract: An improved process for the removal of acetylene from a hydrogen chloride stream in which the acetylene is converted to vinyl chloride by contact with a hydrochlorination catalyst, the improvement comprising, prior to contacting the stream with the hydrochlorination catalyst, contacting said stream with a catalyst comprising a noble metal, preferably of the platinum group, or salt or oxide thereof, supported or unsupported, at a temperature of between about 50.degree. and about 200.degree. C. and a pressure between about 8 and about 20 bar absolute.
    Type: Grant
    Filed: March 6, 1981
    Date of Patent: November 13, 1984
    Assignee: Wacker Chemie GmbH
    Inventors: Ludwig Schmidhammer, Rudolf Strasser