Patents Represented by Attorney Joel G. Ackerman

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  • Diphenyl ether carbamates
    Patent number: 4204858
    Abstract: Diphenyl ether amides having the formula ##STR1## in which X is chloro or methyl; n is zero, one or two; Y is chloro or trifluoromethyl; R.sub.1 is hydrogen, alkyl, lower alkoxy, lower haloalkyl, thio-lower alkyl, or alkenyl; R.sub.2 is hydrogen, lower alkoxy-alkyl or lower alkanoyl; or R.sub.1 and R.sub.2 taken together is ##STR2## The compounds are useful as post-emergence herbicides, particularly as post-emergence, post-flooding herbicides, for use in connection with rice cultivation.
    Type: Grant
    Filed: October 10, 1978
    Date of Patent: May 27, 1980
    Assignee: Stauffer Chemical Company
    Inventor: Don R. Baker
  • Novel 4-chromanone-7-phosphates and phosphonates and the insecticidal use thereof
    Patent number: 4194029
    Abstract: Novel insecticidal and/or miticidal compounds have the formula ##STR1## in which R is C.sub.1 -C.sub.3 alkyl or C.sub.1 -C.sub.3 alkoxy; R.sub.1 is C.sub.1 -C.sub.3 alkoxy; R.sub.2 and R.sub.3 are C.sub.1 -C.sub.3 alkyl; R.sub.4 is hydrogen or C.sub.1 -C.sub.3 alkyl and R.sub.5 is hydrogen, chloro or C.sub.1 -C.sub.3 alkoxy.
    Type: Grant
    Filed: August 17, 1978
    Date of Patent: March 18, 1980
    Assignee: Stauffer Chemical Company
    Inventor: Hsiao-Ling Lam
  • Process for treating unreacted 1,2-dichloroethane from 1,2-dichloroethane cracking
    Patent number: 4188347
    Abstract: An improved process for removal of chloroprene from 1,2-dichloroethane recovered unconverted from the effluent of 1,2-dichloroethane pyrolysis. The chloroprene is chlorinated with chlorine in the presence of o- or m-cresol or a chlorinated derivative thereof, and the excess chlorine from this step is removed by reaction with ethylene.
    Type: Grant
    Filed: December 6, 1978
    Date of Patent: February 12, 1980
    Assignee: Wacker-Chemie GmbH
    Inventors: Ludwig Schmidhammer, Hellmuth Frey
  • 3-Halo-5-(lower alkoxy) phenoxy alkyl amides
    Patent number: 4182625
    Abstract: Compounds having the formula ##STR1## in which X is a halogen, R.sub.1 is lower alkyl, R.sub.2 is lower alkyl, and R.sub.3 is lower alkyl, lower alkynyl, or cyano. The compounds have been found to have utility as herbicides, particularly as pre-emergence herbicides.
    Type: Grant
    Filed: June 28, 1978
    Date of Patent: January 8, 1980
    Assignee: Stauffer Chemical Company
    Inventors: Don R. Baker, Frank H. Walker
  • 1,3-Oxazole phosphates and phosphonates
    Patent number: 4176121
    Abstract: Compounds having the formula ##STR1## in which R is phenyl, phenylthio, phenoxy, or lower aklylthio; R.sub.1 is lower alkoxy; R.sub.2 is lower alkyl or lower alkoxy; R.sub.3 is lower alkyl; and X is sulfur or oxygen. The compounds have utility as insecticides and miticides.The compounds can be prepared through novel intermediates having the formula ##STR2## by a novel process of reacting a methyl ketone oxime with a haloacetyl chloride in the absence of an acid acceptor.
    Type: Grant
    Filed: October 25, 1978
    Date of Patent: November 27, 1979
    Assignee: Stauffer Chemical Company
    Inventor: Arnold D. Gutman
  • Process for purification of gases containing elemental sulfur
    Patent number: 4175112
    Abstract: Gases containing elemental sulfur are purified therefrom by contact with sulfur trioxide in oleum; additionally the gas may be purified by carbonaceous material. In one embodiment, shown in the drawing, the process is used to remove elemental sulfur from sulfur dioxide produced by reaction of molten sulfur (3) with sulfur trioxide. A portion of the sulfur trioxide is by-passed (6) and introduced into the overhead line (5) of the sulfur dioxide reactor (4). The gases are purified in a second reactor (11) containing a pool of oleum (10).
    Type: Grant
    Filed: July 17, 1978
    Date of Patent: November 20, 1979
    Assignee: Stauffer Chemical Company
    Inventors: Edwin B. Lusk, Douglas C. Riley, Jr., Joseph P. Creadh, III
  • Production of dialkylaluminum hydrides
    Patent number: 4170604
    Abstract: Dialkylaluminum hydrides are produced by subjecting a mixed aluminum alkyl having the formula R.sub.2 AlR' to pyrolysis. R is methyl, ethyl, n-alkyl or an alkyl group which has no hydrogen atoms on the carbon atom .beta. to the aluminum. R' is an .alpha. - or .beta. - branched alkyl group having the formula ##STR1## in which one R" is hydrogen and the other is alkyl and R"' is alkyl. The mixed aluminum alkyl R.sub.2 AlR' can be obtained either by reaction of two aluminum alkyls:2R.sub.3 Al+R'.sub.3 Al.fwdarw.3R.sub.2 AlR'or by reaction of a trialkylaluminum with a dialkylaluminum hydride:2R.sub.3 Al+R'.sub.2 AlH.fwdarw.2R.sub.2 AlR'+R.sub.
    Type: Grant
    Filed: November 6, 1978
    Date of Patent: October 9, 1979
    Assignee: Stauffer Chemical Company
    Inventors: Dennis B. Malpass, Spencer C. Watson
  • Novel substituted methylene bridged aluminum oligomers
    Patent number: 4170603
    Abstract: Novel organoaluminum compounds having the formula ##STR1## in which X is a halogen, Y is an alkyl group having from 1 to 10 carbon atoms, a phenyl group or a halogen, R is an alkyl group having from 2 to 9 carbon atoms, and n is an integer from 1 to 20. These compounds are less viscous and more soluble in hydrocarbon solvents than are corresponding ethylene-based or butadiene-based compounds.The novel compounds are prepared by the reaction of alkylaluminum dihalides or aluminum trihalides with a terminal olefin having from 3 to 10 carbon atoms in the presence of aluminum metal.
    Type: Grant
    Filed: March 3, 1977
    Date of Patent: October 9, 1979
    Assignee: Stauffer Chemical Company
    Inventor: Loyd W. Fannin
  • Insect control agents
    Patent number: 4162326
    Abstract: Compounds having the formula ##STR1## in which one of R.sub.1 and R.sub.2 is C.sub.3 -C.sub.4 alkynoxy or C.sub.3 alkenoxy and the other is hydrogen or methoxy. The compounds have utility as insect control agents, either as insecticides or anti-juvenile hormones.
    Type: Grant
    Filed: September 27, 1978
    Date of Patent: July 24, 1979
    Assignee: Stauffer Chemical Company
    Inventor: Alexander Mihailovski
  • Substituted cyclopropylmethoxy anilides and their use as herbicides
    Patent number: 4149874
    Abstract: Compounds having the formula ##STR1## in which R.sub.1 is alkyl, lower alkenyl, chloro-lower alkyl, lower cycloalkyl, lower alkoxy, thio-lower alkyl, or ##STR2## R.sub.2 is hydrogen, lower alkoxyalkyl or lower alkanoyl; R.sub.3 and R.sub.4 are independently hydrogen, lower alkyl or lower alkoxy; X and Y are independently chloro, fluoro or bromo; Z is hydrogen, methyl, dimethyl, or one methyl and one chloro substituent; and n is 0 or 1. The compounds have utility as herbicides, particularly as post-emergence herbicides.
    Type: Grant
    Filed: June 21, 1977
    Date of Patent: April 17, 1979
    Assignee: Stauffer Chemical Company
    Inventor: Raymond A. Felix
  • 1,3-Oxazole phosphates and phosphonates as insecticides and miticides
    Patent number: 4137308
    Abstract: Compounds having the formula ##STR1## in which R is phenyl, phenylthio, phenoxy, or lower alkylthio; R.sub.1 is lower alkoxy; R.sub.2 is lower alkyl or lower alkoxy; R.sub.3 is lower alkyl; and X is sulfur or oxygen. The compounds have utility as insecticides and miticides. The compounds can be prepared through novel intermediates having the formula ##STR2## BY A NOVEL PROCESS OF REACTING A METHYL KETONE OXIME WITH A HALOACETYL CHLORIDE IN THE ABSENCE OF AN ACID ACCEPTOR.
    Type: Grant
    Filed: November 11, 1977
    Date of Patent: January 30, 1979
    Assignee: Stauffer Chemical Company
    Inventor: Arnold D. Gutman
  • Process for the production of 1,3-dichloroacetone oxime and its acetate derivative
    Patent number: 4128580
    Abstract: 1,3-dichloroacetone oxime is prepared from 1,3-dichloropropanone by reaction with a hydroxylamine salt in a strongly acidic medium in the presence of a base selected from the group consisting of tertiary amines, lower alkyl amides, alkali metal bicarbonates, alkali metal carbonates and alkaline earth metal carbonates. 1,3-dichloroacetone oxime acetate is advantageously prepared by reaction of the oxime with acetic anhydride. The acetate is obtained in high purity.
    Type: Grant
    Filed: December 21, 1976
    Date of Patent: December 5, 1978
    Assignee: Stauffer Chemical Company
    Inventors: Kent E. Matsumoto, Jimmy H. Chan, Don R. Baker
  • Oxychlorination of ethylene
    Patent number: 4123467
    Abstract: Oxychlorination of ethylene is carried out using a three-reactor system containing beds of a catalyst comprising a spherical, high-surface area activated alumina impregnated with cupric chloride and potassium chloride. In the first two reactors, the catalyst bed is divided into two sections, with a more active catalyst in the lower section than in the upper. The catalyst is substantially undiluted with inert particles.A new catalyst for such a process is also provided.
    Type: Grant
    Filed: May 14, 1976
    Date of Patent: October 31, 1978
    Assignee: Stauffer Chemical Company
    Inventors: Ramsey G. Campbell, Elliott P. Doane, M. Henry Heines, Joseph S. Naworski, Harvey J. Vogt
  • Production of ethyl chlorothioformate
    Patent number: 4119659
    Abstract: An improved process for producing alkyl, lower cycloalkyl, lower cycloalkylmethyl, lower alkenyl, phenyl, benzyl, chloro-substituted phenyl and certain haloalkyl chlorothioformates by the reaction of the corresponding mercaptan with phosgene. The process is conducted in two stages, both occurring in a continuous liquid phase, in the presence of an activated carbon catalyst. Production of by-product disulfide is minimized and overall capacity can be increased.
    Type: Grant
    Filed: March 9, 1977
    Date of Patent: October 10, 1978
    Assignee: Stauffer Chemical Company
    Inventor: Carlo G. Alesandrini, Jr.
  • 3-Halo-5-(lower alkoxy) phenoxy alkyl amides
    Patent number: 4119433
    Abstract: Compounds having the formula ##STR1## in which X is a halogen, R.sub.1 is lower alkyl, R.sub.2 is lower alkyl, and R.sub.3 is lower alkyl, lower alkynyl, or cyano. The compounds have been found to have utility as herbicides, particularly as pre-emergence herbicides.
    Type: Grant
    Filed: July 5, 1977
    Date of Patent: October 10, 1978
    Assignee: Stauffer Chemical Company
    Inventors: Don R. Baker, Francis H. Walker
  • Herbicidal effect of a mixture of cis and trans isomers of S-isopropyl-1-(5-ethyl-2-methylpiperidinecarbothioate)
    Patent number: 4119431
    Abstract: A mixture of cis and trans isomers of S-isopropyl-1-(5-ethyl-2-methylpiperidinecarbothioate) has been found to have improved herbicidal properties in contrast to the trans isomer alone. Preferably the mixture contains at least about 20%, most preferably between about 60 and about 65%, of the cis isomer.The S-isopropyl-1-(5-ethyl-2-methylpiperidinecarbothioate) having a desired amount of cis isomer can be produced by a two-step process comprising hydrogenation of 2-methyl-5-ethyl pyridine using a catalyst comprising rhodium supported on activated carbon to produce 2-methyl-5-ethyl piperidine and reacting the piperidine with isopropyl chlorothiolformate.
    Type: Grant
    Filed: December 27, 1976
    Date of Patent: October 10, 1978
    Assignee: Stauffer Chemical Company
    Inventor: Harry Tilles
  • Herbicidal N-(dialkylcarbamyl)-N-trifluoromethyl-phenylcarbamyl alkyl disulfides
    Patent number: 4119432
    Abstract: Novel herbicidal compounds have the general formula ##STR1## wherein each of R, R.sub.1 and R.sub.2 is a lower alkyl radical.
    Type: Grant
    Filed: May 17, 1977
    Date of Patent: October 10, 1978
    Assignee: Stauffer Chemical Company
    Inventor: Edmund J. Gaughan
  • Certain diaryldithiophosphorodiamidates and their use as biocides
    Patent number: 4119716
    Abstract: New compounds having the formula ##STR1## in which R is alkyl, phenyl, benzyl or p-chlorophenyl and R.sub.1 and R.sub.2 are hydrogen, halo, trifluoromethyl, lower alkyl, nitro, cyano or thiocyano. The compounds are useful as biocides, particularly as bactericides against Staphylococcus aureus.
    Type: Grant
    Filed: July 27, 1977
    Date of Patent: October 10, 1978
    Assignee: Stauffer Chemical Company
    Inventor: Arnold D. Gutman
  • Certain formamidine dithiophosphates and phosphonates and their use as insecticides
    Patent number: 4115556
    Abstract: Compounds having the formula ##STR1## in which R.sub.1 is lower alkyl or lower alkoxy, R.sub.2 is lower alkoxy or methylthio-substituted lower alkoxy, and R.sub.3 is ##STR2## R.sub.4 and R.sub.5 are lower alkyl, m is 1 or 2 and n is 0 or an integer from 1 to 4. The compounds have utility as insecticides and acaricides.
    Type: Grant
    Filed: July 25, 1977
    Date of Patent: September 19, 1978
    Assignee: Stauffer Chemical Company
    Inventors: Hsiao Ling Lam, Eugene G. Teach
  • Hydrazone dithiophosphates and phosphonates and use thereof as insecticides
    Patent number: 4115558
    Abstract: Novel insecticidal compounds have the general structural formula ##STR1## in which each of R and R.sub.2 is an alkyl or alkoxy group and each R.sub.1 and R.sub.3 is an alkoxy group.
    Type: Grant
    Filed: October 20, 1977
    Date of Patent: September 19, 1978
    Assignee: Stauffer Chemical Company
    Inventor: Llewellyn W. Fancher