Patents Represented by Attorney T. G. De Jonghe
  • Patent number: 4432786
    Abstract: Compounds of the formula: ##STR1## wherein R.sup.1 is H or alkyl; R.sup.2 and R.sup.3 are independently H, alkyl, aryl or substituted aryl; R.sup.4 is H or alkoxycarbonyl; R.sup.5 is H, acyl or a cation; and Z is thienyl or substituted thienyl.The compounds exhibit grass herbicide activity and are prepared via the reaction of the appropriately substituted cyclohexane-1,3-dione with the appropriate thienylmethoxyamine derivative and optionally acylating this product at the 3-hydroxy position or converting it to the cation salt.
    Type: Grant
    Filed: May 10, 1982
    Date of Patent: February 21, 1984
    Assignee: Chevron Research Company
    Inventor: William Loh
  • Patent number: 4431826
    Abstract: An improved process for the preparation of alkenyl succinic anhydride from maleic anhydride and a mixture of straight chain alpha olefins in the C.sub.13 to C.sub.22 range which comprises separating the alpha olefins into a lower boiling fraction and a higher boiling fraction, isomerizing the higher boiling fraction, recombining the two fractions and reacting them with maleic anhydride.
    Type: Grant
    Filed: August 20, 1982
    Date of Patent: February 14, 1984
    Assignee: Chevron Research Company
    Inventor: William A. Sweeney
  • Patent number: 4429119
    Abstract: 5-Deoxy-3-0-arylmethyl or substituted arylmethyl-1,2-0-alkylidene-a-D-xylofuranose and 5-C-alkyl and alkenyl derivatives thereof. The compounds are useful as herbicides and plant growth regulators.
    Type: Grant
    Filed: August 18, 1982
    Date of Patent: January 31, 1984
    Assignee: Chevron Research Company
    Inventor: William Loh
  • Patent number: 4414185
    Abstract: A process for the preparation of calcium fluoride from industrial waste waters which comprises treatment of the waste waters with potassium hydroxide, followed by lime precipitation, neutralization with carbon dioxide and filtration to provide the calcium fluoride product.
    Type: Grant
    Filed: August 9, 1982
    Date of Patent: November 8, 1983
    Assignee: Chevron Research Company
    Inventor: Jonas P. Harrison
  • Patent number: 4407806
    Abstract: 3-Pyridyl ethers of this invention possess good fungicidal, herbicidal and plantgrowth regulating activity.
    Type: Grant
    Filed: November 23, 1981
    Date of Patent: October 4, 1983
    Assignee: Chevron Research Company
    Inventor: Richard E. Cherpeck
  • Patent number: 4407817
    Abstract: 3-(N-acyl-N-arylamino) and 3-(N-thionoacyl-N-arylamino)-gamma-butyrolactones and thiobutyrolactones have fungicidal activity.
    Type: Grant
    Filed: April 19, 1982
    Date of Patent: October 4, 1983
    Assignee: Chevron Research Company
    Inventor: David C. K. Chan
  • Patent number: 4389434
    Abstract: A water-permeable, grass-like sport surface is provided. The sport surface comprises a solid, porous, resilient base mat and a thermoplastic, synthetic fiber, grass-like mat placed over the base mat. The grass-like mat is prepared by tufting synthetic fibers into a water-permeable fabric to obtain a fabric having loops of the synthetic fibers on the fabric's bottom side and a grass-like pile on its top side, then placing on the loops on the bottom side of the fabric a water-permeable, heat-resistant membrane, composed of high melting-point fibers or a mixture of high melting-point fibers, followed by heating the membrane to fuse the synthetic fibers to the membrane.
    Type: Grant
    Filed: February 12, 1982
    Date of Patent: June 21, 1983
    Assignee: Chevron Research Company
    Inventor: Herman A. Polman
  • Patent number: 4389400
    Abstract: The 2,2-bis(haloalkenyl)-1-substituted-1-cyanoethylene compounds of this invention are effective fungicides. In particular, some of the compounds of this invention are especially effective against Grape Downy Mildew and Rice Blast.
    Type: Grant
    Filed: March 25, 1982
    Date of Patent: June 21, 1983
    Assignee: Chevron Research Company
    Inventor: Andrew W. Ho
  • Patent number: 4384149
    Abstract: A process for the preparation of 1-nitroalkene which comprises the reaction of a 1-alkene with dinitrogen tetroxide in the presence of oxygen and an ether solvent to form an alkene-dinitrogen tetroxide adduct and subsequent reaction of the resulting adduct with sodium fluoride in the presence of an inert gas.
    Type: Grant
    Filed: July 6, 1981
    Date of Patent: May 17, 1983
    Assignee: Chevron Research Company
    Inventor: Shigeto Suzuki
  • Patent number: 4383065
    Abstract: Poly-2-pyrrolidone polymer compositions having improved melt processability via the capping of at least a portion of the amino and/or carboxy end group of the polymer and the incorporation therewith of certain epoxide organic isocyanate and/or polyol additive compositions. The melt extrusion of such compositions is also disclosed.
    Type: Grant
    Filed: December 29, 1980
    Date of Patent: May 10, 1983
    Assignee: Chevron Research Company
    Inventors: Gar L. Woo, Phillip H. Parker
  • Patent number: 4382948
    Abstract: Novel 1,3,4-trisubstituted-2-pyrazolin-5-ones of this invention are excellent fungicides, especially against rice blast.
    Type: Grant
    Filed: March 25, 1982
    Date of Patent: May 10, 1983
    Assignee: Chevron Research Company
    Inventor: Victor P. Kurkov
  • Patent number: 4382954
    Abstract: Compounds represented by the formula ##STR1## wherein R and R.sup.1 are independently hydrogen or lower alkyl; R.sup.2 is lower alkenyl, lower alkynyl or --CH.sub.2 X wherein X is halogen, hydroxyl, lower alkoxy, lower alkylthio or a furanyl ring; and Z is hydroxyl, lower alkoxy or --NR.sup.3 R.sup.4 wherein R.sup.3 and R.sup.4 are independently hydrogen or lower alkyl possess fungicidal activity. Moreover, some of the compounds of this invention also possess herbicidal activity.
    Type: Grant
    Filed: January 27, 1982
    Date of Patent: May 10, 1983
    Assignee: Chevron Research Company
    Inventor: David C. K. Chan
  • Patent number: 4379773
    Abstract: Processes for wet spinning nylon 4 filaments. The processes are characterized by the use of a formic acid spinning dope and an acidic aqueous alkali metal formate coagulation bath maintained at elevated temperatures.
    Type: Grant
    Filed: June 4, 1980
    Date of Patent: April 12, 1983
    Assignee: Chevron Research Company
    Inventors: Mitchell Danzik, J. Ronald Carpenter
  • Patent number: 4365989
    Abstract: Compounds of the formula: ##STR1## wherein R and R.sup.1 are independently lower alkyl or R and R.sup.1 are joined to form a cycloalkyl group of 5 to 8 carbon atoms; R.sup.2 is hydrogen or chloro; and R.sup.3 is hydrogen, halogen or --SR.sup.4 wherein R.sup.4 is lower alkyl, phenyl or phenyl substituted with 1 to 3 of the same or different substituents selected from halogen, nitro, lower alkyl or lower alkyl substituted with 1 to 3 halogens with the proviso that when R.sup.2 is chloro, R.sup.3 is not --SR.sup.4, bromo, fluorine or iodine, possess good fungicidal activity. Moreover, some of the compounds of this invention are active as algicides and herbicides.
    Type: Grant
    Filed: January 27, 1982
    Date of Patent: December 28, 1982
    Assignee: Chevron Research Company
    Inventor: Edward I. Aoyagi
  • Patent number: 4366333
    Abstract: The life of the hydrogenation catalyst in reducing a mixture of glycolate ester to ethylene glycol can be extended by lowering the polyglycolide ester content of the mixture by transesterification, that is, heating in the presence of alcohol, after which the resulting mixture is hydrogenated.
    Type: Grant
    Filed: March 24, 1980
    Date of Patent: December 28, 1982
    Assignee: Chevron Research Company
    Inventor: John B. Wilkes
  • Patent number: 4364748
    Abstract: A process for recovering maleic anhydride from gaseous compositions comprising maleic anhydride and water by condensing the composition at a temperature in the range of from about 20.degree. C. to about 50.degree. C. and a pressure of less than about 200 millimeters of mercury.
    Type: Grant
    Filed: February 14, 1979
    Date of Patent: December 21, 1982
    Assignee: Chevron Research Company
    Inventor: Kiran R. Bakshi
  • Patent number: 4362548
    Abstract: Compounds of the formula: ##STR1## wherein R.sup.1 and R.sup.2 are alkyl or halo; R.sup.3 is hydrogen or alkyl; Z is halo; and R.sup.4 is alkoxycarbonyl, alkoxy, phenyl, substituted phenyl,a group of the formula ##STR2## wherein R.sup.5 and R.sup.6 are hydrogen, alkyl, alkenyl or alkynyl; a group of the formula ##STR3## wherein R.sup.7 and R.sup.8 are hydrogen or alkyl; A five or six-membered aromatic heterocyclic ring of the formula ##STR4## wherein at least one of V, W, X or Y is an oxygen, sulfur or nitrogen atom, R.sup.9 is alkyl and n is 0, 1, 2 or 3 have herbicidal and plant-growth-regulating activity.
    Type: Grant
    Filed: January 29, 1981
    Date of Patent: December 7, 1982
    Assignee: Chevron Research Company
    Inventor: Stephen D. Ziman
  • Patent number: 4348222
    Abstract: Compounds of the formula ##STR1## wherein R.sup.1 is alkyl or alkoxy; R.sup.2 is substituted alkyl or substituted alkenyl containing 1 or 2 hydroxy or alkoxy substituents, acyl, and ketal group of the formula ##STR2## wherein n=2, 3 or 4, R.sup.4 is alkyl and R.sup.5 is hydrogen or alkyl, an oxime of the formula ##STR3## wherein R.sup.6 is hydrogen or alkyl; R.sup.3 is hydrogen or alkyl; X is halo and Y is oxygen or sulfur have herbicidal activity.
    Type: Grant
    Filed: July 28, 1980
    Date of Patent: September 7, 1982
    Assignee: Chevron Research Company
    Inventor: John W. Kobzina
  • Patent number: 4348233
    Abstract: A plasticized sulfur composition having improved flame retardancy and crazing resistance, comprising at least 50% by weight sulfur, a sulfur plasticizer, decabromodiphenyl oxide and an inorganic filler. Preferably, the composition also contains dicyclopentadiene.
    Type: Grant
    Filed: April 17, 1981
    Date of Patent: September 7, 1982
    Assignee: Chevron Research Company
    Inventor: Milutin Simic
  • Patent number: 3975449
    Abstract: A process for producing a primary diol and/or triol from an epoxide which comprises contacting the epoxide with hydrogen gas and a solid catalyst comprising nickel or cobalt at a temperature between 20.degree. and 200.degree.C. and at a pressure sufficient to maintain liquid phase, and wherein the epoxide has the following formula: ##EQU1## wherein R is an alkylene diradical of 1 to 5 carbon atoms and R' is a hydroxy alkyl having 1 to 5 carbon atoms or alkyl having 1 to 5 carbon atoms.
    Type: Grant
    Filed: August 5, 1974
    Date of Patent: August 17, 1976
    Assignee: Chevron Research Company
    Inventor: Shigeto Suzuki