Patents Represented by Attorney J. A. Buchanan
  • Patent number: 4031247
    Abstract: Vinyl 2-arylthiovinyl and vinyl 2-alkylthiovinyl sulfones, having fungicidal and algicidal activity, are prepared by the addition of arylsulfenyl halides or alkylsulfenyl halides to divinyl sulfone and the dihydrohalogenation of the resulting 1,2-addition product.
    Type: Grant
    Filed: August 19, 1976
    Date of Patent: June 21, 1977
    Assignee: Chevron Research Company
    Inventor: Philip S. Magee
  • Patent number: 4030906
    Abstract: Novel N-haloacetyl-1,2-dihydro-4H-3,1-benzoxazines which have utility as herbicides.
    Type: Grant
    Filed: October 20, 1975
    Date of Patent: June 21, 1977
    Assignee: Chevron Research Company
    Inventor: John W. Kobzina
  • Patent number: 4025585
    Abstract: Compounds of the formula ##STR1## wherein R.sub.1 and R.sub.2 are independently alkyl of 1 to 8 carbon atoms, or alkenyl of 2 to 8 carbon atoms, R.sub.3 is hydrogen or alkyl of 1 to 4 carbon atoms, and R.sub.4 is hydrogen, alkyl of 1 to 4 carbon atoms, alkenyl of 2 to 4 carbon atoms, aryl of 6 to 15 carbon atoms optionally substituted with halogen atoms or alkyl groups of 1 to 4 carbon atoms or an acyl group of 2 to 4 carbon atoms, with the proviso that R.sub.3 and R.sub.4 may be joined to form an alkylene radical of 2 to 5 carbon atoms. The compounds possess insecticidal and herbicidal activity.
    Type: Grant
    Filed: March 1, 1976
    Date of Patent: May 24, 1977
    Assignee: Chevron Research Company
    Inventor: Francis J. Freenor, III
  • Patent number: 4024141
    Abstract: Triazines of the formula ##STR1## wherein R is chlorine, methoxy or methylthio, R' is alkyl, alkenyl or alkoxyalkyl; R.sup.2, R.sup.3, R.sup.4 and R.sup.5 are hydrogen or alkyl; R.sup.6 is alkyl, aryl or haloaryl; and Y is oxygen or sulfur, are useful as herbicides.
    Type: Grant
    Filed: December 29, 1975
    Date of Patent: May 17, 1977
    Assignee: Chevron Research Company
    Inventor: John W. Kobzina
  • Patent number: 4018657
    Abstract: A process for separating mixtures of close boiling, high-molecular weight alkenes and alkanes which employs phenoxide-catalyzed alkyl displacement.
    Type: Grant
    Filed: April 1, 1976
    Date of Patent: April 19, 1977
    Assignee: Chevron Research Company
    Inventors: William A. Sweeney, Milutin Simic
  • Patent number: 4018920
    Abstract: Compounds of the formula ##STR1## wherein R is an alkyl group or an alkenyl group, each substituted with 1 to 5 halogen atoms of atomic number 9 to 35, and X is halogen of atomic number 9 to 35, nitro, cyano, lower alkyl, lower alkoxy or trifluoromethyl and n is 0 or an integer of 1 to 3, possess fungicidal activity.
    Type: Grant
    Filed: April 1, 1976
    Date of Patent: April 19, 1977
    Assignee: Chevron Research Company
    Inventor: David Cheong King Chan
  • Patent number: 4017465
    Abstract: A process for polymerizing 2-pyrrolidone utilizing an agitated reaction mixture containing an inert nonsolvent and an insoluble salt in order to produce a particulate, or easily comminuted, solid product.
    Type: Grant
    Filed: January 23, 1975
    Date of Patent: April 12, 1977
    Assignee: Chevron Research Company
    Inventor: Robert Bacskai
  • Patent number: 4017521
    Abstract: An improved vanadium-phosphorus mixed oxide is prepared by a unique method employing an organic medium. The substantial intrinsic surface area and the microcrystalline structure of the new oxide result in advantageous activity and selectivity effects in the catalysed vapor phase oxidation of n-butane to maleic anhydride. These oxides are also useful for the production of acid anhydrides from suitable hydrocarbon feeds.
    Type: Grant
    Filed: May 11, 1973
    Date of Patent: April 12, 1977
    Assignee: Chevron Research Company
    Inventor: Ronald A. Schneider
  • Patent number: 4016208
    Abstract: A process for producing hydroxyacetic acid which comprises contacting carbon monoxide with formaldehyde and a catalyst comprising hydrogen fluoride in a reaction zone at a temperature between 0.degree. and 100.degree. C and a pressure between 10 and 4000 psig. Oxydiacetic acid is also produced by this reaction. The ratio of hydroxyacetic acid to oxydiacetic acid is increased by adding water to the reaction mixture.
    Type: Grant
    Filed: April 29, 1975
    Date of Patent: April 5, 1977
    Assignee: Chevron Research Company
    Inventor: Shigeto Suzuki
  • Patent number: 4016185
    Abstract: Carboxylic acids are prepared from high-molecular-weight paraffins by vapor phase cracking at a temperature of at least about 500.degree.C and a residence time of from about 0.1 seconds to about 10 seconds in the presence of carbon dioxide.
    Type: Grant
    Filed: December 11, 1975
    Date of Patent: April 5, 1977
    Assignee: Chevron Research Company
    Inventor: John B. Wilkes
  • Patent number: 4016275
    Abstract: Compounds of the formula ##STR1## wherein R, R.sup.1 and R.sup.2 are hydrogen, halogen, hydroxy, alkyl or alkenyl optionally substituted with halogen atoms and R.sup.3 is a haloalkyl, haloalkenyl or aryl group, possess morphogenetic hormonal mimetic insecticidal activity.
    Type: Grant
    Filed: July 3, 1975
    Date of Patent: April 5, 1977
    Assignee: Chevron Research Company
    Inventor: Joseph E. Moore
  • Patent number: 4015995
    Abstract: In an improved method for the treatment of a permeable formation or zone adjacent to the bore of an oil well, the setting time of an acid-settable liquid is predictably delayed by use of a novel catalyst system. The method provides an effective means for controlling the reduction of the permeability of the formation or zone in a single stage treatment by dissolving the catalyst in the liquid and introducing the solution into the formation. The catalyst system comprises a mixture of a suitable acid-releasing compound and a base.
    Type: Grant
    Filed: August 25, 1975
    Date of Patent: April 5, 1977
    Assignee: Chevron Research Company
    Inventor: Patrick H. Hess
  • Patent number: 4013774
    Abstract: This invention is directed to 2,3-dihydro-2,2-dialkyl benzofuranyl N-thio-substituted carbamates and their use as insecticides.
    Type: Grant
    Filed: June 13, 1975
    Date of Patent: March 22, 1977
    Assignee: Chevron Research Company
    Inventors: Melancthon S. Brown, deceased, Gustave K. Kohn
  • Patent number: 3933130
    Abstract: As cold start is initiated in a spark-ignition internal, fuel injection combustion engine, lower molecular weight constituents fo a full-range gasoline are selectively eluted by an elution system including an adsorbent bed of adsorbent material (cold start cycle). Under such circumstances, the adsorbent bed forms an elution zone within a cannister assembly. Entry of the full-range gasoline is initiated by a valve and conduit network under control of a fuel injection control circuit. Furthermore, when the engine is in an inoperative state (vapor capture cycle) the same adsorbent bed is also capable of performing a second function: it adsorbes evaparative emissions originating from within the gasoline tank.
    Type: Grant
    Filed: March 6, 1974
    Date of Patent: January 20, 1976
    Assignee: Chevron Research Company
    Inventor: Sigmund M. Csicsery
  • Patent number: 3933860
    Abstract: 3-(N-acyl-N-arylamino)-.gamma.-lactones, .delta.-lactones, .gamma.-lactams and .delta.-lactams have fungicidal activity.
    Type: Grant
    Filed: February 10, 1975
    Date of Patent: January 20, 1976
    Assignee: Chevron Research Company
    Inventor: David Cheong King Chan