Patents Examined by Catherine L. Mills
  • Patent number: 4932994
    Abstract: An evaporation inhibitor, having particular use with spray mixtures of agricultural chemicals applied by the low-volume method, in the form of a paraffin-containing aqueous dispersion or a self-emulsifying solution in an organic solvent, and having the following composition:______________________________________ from 15 to 40% by weight of paraffin waxes or a wax mixture containing paraffin waxes having a dropping point of from 35 to 80.degree. C., from 4 to 20% by weight of nonionic and/or anionic emulsifiers, from 35 to 81% by weight of water and/or an organic solvent which is one or more of a hydrocarbon, an ester and a ketone, which have boiling points of from 70 to 280.degree. C., and from 0 to 5.5% by weight of other auxiliaries.
    Type: Grant
    Filed: November 14, 1985
    Date of Patent: June 12, 1990
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Josef Koester, Adolf Asbeck, Holger Tesmann, Margarete Gruenert, Konrad Albrecht, Paul Bittner, Fritz Keim
  • Patent number: 4921525
    Abstract: An agent for defoliating plants, which contains a 1,3,4-thiadiazol-2-ylurea of the formula I ##STR1## where R.sup.1 is hydrogen or methyl, andR.sup.2 is C.sub.1 -C.sub.6 -alkyl, C.sub.3 -C.sub.8 -cycloalkyl, C.sub.2 -C.sub.4 -alkenyl, C.sub.3 -C.sub.6 -alknyl or phenyl which is unsubstituted or substituted by one or 2 chlorine or fluorine atoms, methyl groups, trifluoromethyl groups or methoxy groups, a process for the preparation of the agent, and its use in a method for defoliating plants.
    Type: Grant
    Filed: October 14, 1988
    Date of Patent: May 1, 1990
    Assignee: BASF Aktiengesellschaft
    Inventors: Klaus Grossman, Johann Jung, Guenter Schulz, Hubert Sauter, Peter Hofmeister, Wolfgang Tuerk
  • Patent number: 4913728
    Abstract: Alkane- and monohaloalkane-sulfonanilides substituted in the para position by alkylthio, alkylsulfinyl and alkylsulfonyl groups and additionally substituted by halogen and optionally by trifluoromethyl and agriculturally acceptable salts thereof are useful herbicides.
    Type: Grant
    Filed: November 21, 1983
    Date of Patent: April 3, 1990
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Sharon L. Ruffing, James R. Throckmorton
  • Patent number: 4911751
    Abstract: A novel process for selectively controlling weeds in crops of useful plants in the pre-emergence process by the use of herbicidal sulfonylurea derivatives, which process comprises applying the herbicidal active substance in close proximity to and simultaneously with the cultivated-plant seed to the cultivated area.
    Type: Grant
    Filed: September 18, 1986
    Date of Patent: March 27, 1990
    Assignee: Ciba-Geigy Corporation
    Inventors: Andreas Nyffeler, Reinhold Stauss
  • Patent number: 4911750
    Abstract: A plant growth-inhibiting composition comprising ##STR1## wherein the various radicals are as defined.
    Type: Grant
    Filed: February 8, 1984
    Date of Patent: March 27, 1990
    Assignee: Bayer Aktiengesellschaft
    Inventors: Klaus Lurssen, Graham Holmwood, Wolfgang Kramer, Erik Regel, Wolf Reiser, Rolf Schroder
  • Patent number: 4911752
    Abstract: A method of combating unwanted vegetation which comprises applying to such vegetation or to a locus from which it is desired to exclude such vegetation a herbicidally effective amount of a halogenoalkoxyphenylsulphonylisothioureidoazine of the formula ##STR1## in which R.sup.1 represents halogeno-C.sub.1 -C.sub.4 -alkoxy,R.sup.2 represents hydrogen, halogen, hydroxyl, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -halogenoalkyl, C.sub.1 -C.sub.4 -alkoxy, C.sub.1 -C.sub.4 -halogenoalkoxy, C.sub.1 -C.sub.4 -alkylthio, C.sub.1 -C.sub.4 -halogenoalkylthio, amino, C.sub.1 -C.sub.4 -alkylamino or di-(C.sub.1 -C.sub.4 -alkyl)amino,X represents nitrogen or a --CH-- grouping,Y represents nitrogen or a --CR.sup.4 -- grouping,whereinR.sup.4 represents hydrogen, halogen, cyano, C.sub.1 -C.sub.4 -alkyl, formyl, C.sub.1 -C.sub.4 -alkyl-carbonyl or C.sub.1 -C.sub.4 -alkoxy-carbonyl, andZ represents nitrogen or a --CR.sup.5 -- grouping,whereinR.sup.5 represents hydrogen, halogen, hydroxyl, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.
    Type: Grant
    Filed: March 15, 1988
    Date of Patent: March 27, 1990
    Assignee: Bayer Aktiengesellschaft
    Inventors: Christa Fest, Klaus-Helmut Muller, Theodor Pfister, Hans-Jochem Riebel, Hans-Joachim Santel, Robert R. Schmidt
  • Patent number: 4909831
    Abstract: Crops such as corn and other gramineous plants are protected from phytotoxic injury by the herbicide, 1-[2,4-dichloro-5-(N-methylsulfonylamino)phyenyl]-3-methyl-4-difluoromethy l-.DELTA..sup.2 -1,2,4-triazolin-5-one, by coating the seeds of the crops, prior to planting, with a nonphytotoxic quantity of 1,8-naphthalic anhydride. The crops are safened against phytotoxic injury when the herbicide is applied pre-emergent, post-emergent or in a pre-plant incorporated manner.
    Type: Grant
    Filed: February 6, 1989
    Date of Patent: March 20, 1990
    Assignee: FMC Corporation
    Inventors: David W. Keifer, John M. Tymonko
  • Patent number: 4906275
    Abstract: The invention relates to a new composition for defoliation of plants with synergistic activity, containing a mixture of 1-phenyl-3-(1,2,3-thiadiazol-5-yl)urea, a carboxamide or tributyl phosphate and 3-(3,4-dichlorophenyl)-1,1-dimethylurea and its use especially for the defoliation of cotton plants.
    Type: Grant
    Filed: December 18, 1987
    Date of Patent: March 6, 1990
    Assignee: Schering Aktiengesellschaft
    Inventor: Reinhart Rusch
  • Patent number: 4902832
    Abstract: A compound of the formula: ##STR1## wherein R.sub.1 is a hydrogen atom, a fluorine atom or a methyl group and R.sub.2 is as C.sub.1 -C.sub.3 alkyl group, a C.sub.1 -C.sub.5 alkoxy group, a chloro(C.sub.2 -C.sub.4)alkoxy group, a dichloro(C.sub.2 -C.sub.4)alkoxy group, a cyclo(C.sub.3 -C.sub.7)alkoxy group, a phenoxy group, a C.sub.1 -C.sub.5 alkylthio group or a di(C.sub.1 -C.sub.5)alkylamino group, which is useful as a herbicide.
    Type: Grant
    Filed: January 10, 1986
    Date of Patent: February 20, 1990
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Toru Haga, Eiki Nagano, Ryo Yoshida, Shunichi Hashimoto
  • Patent number: 4892577
    Abstract: In the preparation of an aqueous herbicidal composition containing a 3-alkylthio-4-amino-5-tert.-butyl 1,2,4-triazin-5-one and a N-aryl-N-alkoxyalkyl haloacetamide, the improvement which comprises dissolving the triazinone in at least twice its weight of the haloacetamide, and adding such solution to water. Advantageously an emulsifier is present and, if desired, prior to addition to water the solution is diluted with a solvent selected from the group consisting of a normally liquid optionally halogenated and/or alkylated aromatic hydrocarbon. This permits simplified preparation by the farmer of the aqueous dispersion he will apply to crops and fields.
    Type: Grant
    Filed: November 26, 1985
    Date of Patent: January 9, 1990
    Assignee: Mobay Corporation
    Inventor: Joseph Synek
  • Patent number: 4892946
    Abstract: N-(heterocyclicaminocarbonyl)arylsulfonamides in which the aryl radical is substituted in the 2-position by a carboxy radical, ester, thioester, or amide thereof; e.g. N-[(4,6-dimethylpyrimidin-2-yl)aminocarbonyl]-2-methoxycarbonylbenzenesulf onamide or N-[(4,6-dimethoxy-1,3,5-triazin-2-yl)aminocarbonyl]-2-methoxycarbonylbenze nesulfonamide; are useful for the regulation of plant growth and as pre-emergence and post-emergence herbicides.
    Type: Grant
    Filed: November 24, 1980
    Date of Patent: January 9, 1990
    Assignee: E. I. Du Pont De Nemours and Company
    Inventor: George Levitt
  • Patent number: 4891434
    Abstract: The invention discloses a novel class of organosilane compounds containing 1 to 3 alkenyloxy groups directly bonded to the silicon atom and a 3,4-epoxycyclohexyl-substituted alkyl group bonded to the silicon atom. The compound is prepared by the reaction of 1-vinyl-3,4-epoxycyclohexane and a hydrogen alkenyloxy silane and useful as a coupling agent or an adhesion-improving agent.
    Type: Grant
    Filed: November 10, 1987
    Date of Patent: January 2, 1990
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Toshio Takago, Masatoshi Arai, Koji Futatsumori
  • Patent number: 4888041
    Abstract: Certain 5-(substituted phenoxy and substituted 2-pyridinyloxy)-3-methylbenzisoxazoles are selective herbicides for use in grain crops. The control of weeds in rice by the post-emergence application of 5-(2-chloro-4-(trifluoromethyl)phenoxy)-3-methylbenzisoxazole is exemplary. The pyridinyloxy substituted compounds are novel.
    Type: Grant
    Filed: May 18, 1987
    Date of Patent: December 19, 1989
    Assignee: The Dow Chemical Company
    Inventors: Lucinda A. Jackson, Sudarshan K. Malhotra
  • Patent number: 4886543
    Abstract: Aqueous plant cryoprotectant composition containing between about 0.005 and 25 wt. % tetrahydrofurfuryl alcohol, tetrahydrofurfuryl amine or mixtures thereof and method of increasing the resistance of plant tissue to damage caused by freezing conditions comprising applying to the plant tissue surfaces at ambient non-freezing temperatures an aqueous solution containing an effective amount of tetrahydrofurfuryl alcohol, tetrahydrofurfuryl amine or mixtures thereof.
    Type: Grant
    Filed: July 7, 1988
    Date of Patent: December 12, 1989
    Assignee: Great Lakes Chemical Corporation
    Inventors: Charles C. Shin, Nicolai A. Favstritsky, Ahmad Dadgar
  • Patent number: 4886541
    Abstract: Commercially produced chitosan applied to cereal crop seeds at rates of 60 .mu.g to 1000 .mu.g per gram of seed enhances root development, crown diameter, mature straw strength and crop yield. Dry chitosan, when dissolved in dilute acid and neutralized, is applied directly to cereal crop seed with only minor modification to seed treating machinery and methods. In addition to a clear benefit in cereal crop yield, the chitosan treated seed can be planted early to reduce erosion and it can be planted in regions having soil infested with root rotting organisms and not suffer extensive lodging that would prevent seed recovery by commercial harvesters.
    Type: Grant
    Filed: May 25, 1988
    Date of Patent: December 12, 1989
    Assignee: Washington State University Research Foundation
    Inventor: Lee A. Hadwiger
  • Patent number: 4875927
    Abstract: A process of preparing a herbicidal emulsion comprising 75 grams per liter or more of a salt of a herbicidal bipyridylium diquaternary cation as an active ingredient comprising as a first step agitating an aqueous solution of a herbicidal bipyridylium diquaternary salt with an oil and a first emulsifier having a low HLB value to give a first emulsion comprising droplets of herbicidal bipyridylium diquaternary salt solution dispersed in a continuous oil phase, and as a second step, agitating the first emulsion with water and a second emulsifier having a high HLB value, to give a second emulsion comprising drops of the first emulsion dispersed in a continuous aqueous phase. The emulsions have a lower oral toxicity than conventional aqueous formulations.
    Type: Grant
    Filed: January 13, 1988
    Date of Patent: October 24, 1989
    Assignee: Imperial Chemical Industries PLC
    Inventor: Tharwat F. Tadros
  • Patent number: 4874421
    Abstract: The selectivity of aryloxyphenoxypropanoate herbicides, such as methyl 2-(4-((3-chloro-5-(trifluoromethyl)-2-pyridinyl)oxy)phenoxy)propanoate, when used for the control of weeds in grassy crops, such as rice, can be improved by pre-treating the grassy crop seeds or plants with an amount of an aryloxyphenoxypropanoate herbicide sufficient to elevate the acetyl-coenzyme A carboxylase enzyme activity level, but insufficient to cause phytotoxicity.
    Type: Grant
    Filed: June 14, 1988
    Date of Patent: October 17, 1989
    Assignee: The Dow Chemical Company
    Inventors: William A. Kleschick, Jacob Secor, Theodore W. Holmsen
  • Patent number: 4874424
    Abstract: A method of combating unwanted vegetation which comprises applying to such vegetation or to a locus from which it is desired to exclude such vegetation a herbicidally effective amount of an alkoximinoalkylamide of the formula ##STR1## in which R represents hydrogen or alkyl,R.sup.1 represents hydrogen, halogen, cyano, nitro, alkyl, alkoxy, alkylthio, halogenoalkyl, halogenoalkoxy, halogenoalkylthio, phenyl, phenoxy, formyl, alkoxycarbonyl, alkanoyl or alkoximinoalkyl andR.sup.2 represents halogen, cyano, nitro, alkyl, alkoxy, alkylthio, halogenoalkyl, halogenoalkoxy, halogenoalkylthio, phenyl phenoxy, formyl, alkoxycarbonyl, alkanoyl or alkoximinoalkyl.
    Type: Grant
    Filed: April 27, 1988
    Date of Patent: October 17, 1989
    Assignee: Bayer Aktiengesellschaft
    Inventors: Klaus Jelich, Herbert Gayer, Wolfgang Kramer, Hans-Joachim Santel, Robert R. Schmidt, Harry Strang
  • Patent number: 4871388
    Abstract: The present invention relates to liquid concentrate compositions of herbicidal imidazolinyl benzoic acid esters and a method for their preparation.
    Type: Grant
    Filed: June 15, 1987
    Date of Patent: October 3, 1989
    Assignee: American Cyanamid Company
    Inventors: Nunzio R. Pasarela, William S. Steller
  • Patent number: 4863908
    Abstract: Mono(2-ammonium-2-hydroxymethyl-1,3-propanediol)(2R-cis)-(3-methyloxiranyl) phosphonate endowed with therapeutic activity as broad-spectrum antibiotic, as well as a method for preparing same from bis(2-ammonium-2-hydroxymethyl-1,3-propanediol)(2R-cis)-(3-methyloxiranyl) phosphonate and a sulphonic acid. Pharmaceutical compositions containing the novel mono(2-ammonium-2-hydroxymethyl-1,3-propanediol)(2R-cis)-(3-methyloxiranyl ) phosphonate are disclosed.
    Type: Grant
    Filed: September 15, 1987
    Date of Patent: September 5, 1989
    Assignee: Zambon S.p.A.
    Inventors: Dario Chiarino, Davide Della Bella, Vittorio Ferrari