Patents Represented by Attorney Ronald G. Brookens
  • Patent number: 4847285
    Abstract: Substituted 1-phenyl-3-methyl-pyrrolidinediones of the general formula: ##STR1## in which R may represent fluorine, chlorine, bromine, iodine, CN, SCN or methanesulfonyl, Z represents one or more of the same or different substituents selected from fluorine, chlorine, bromine, iodine, NO.sub.2, CN, SCN, sulfamoyl, phenoxy, an alkyl having from 1 to 3 carbon atoms, a halogenalkyl having from 1 to 3 carbon atoms and 1 to 7 halogen atoms selected from fluorine, chlorine or bromine, an alkyloxy having from 1 to 3 carbon atoms, a halogenalkoxy having from 1 to 3 carbon atoms and 1 to 4 halogen atoms selected from the group consisting of fluorine, chlorine and bromine, an allyloxy or ethoxycarbonyl, and n is 0 or an integer from 1 to 4 with the following types of substitutions: 2-, 4-, 2,3-, 2,4-, 2,5-, 2,6-, 3,4-, 2,3,4-, 2,3,5-, 2,3,6-, 2,4,5-, 2,4,6-, 3,4,5-, 2,3,4,5-, 2,4,5,6- and 2,3,5,6-. The invention also relates to a process for making the compounds, which are active ingredients of fungicidal agents.
    Type: Grant
    Filed: April 27, 1988
    Date of Patent: July 11, 1989
    Assignee: The Dow Chemical Company
    Inventors: Norman Haberle, Anneliese Reutter, Peter Kinzel
  • Patent number: 4842604
    Abstract: A process for the prosthetic supplementation or replacement of hard tissue. In the process an anatomically-shaped form is molded by or a prosthetic device is coated with a composite material containing unsintered calcium phosphate biomaterial, a synthetic biodegradable polymer, and optionally, a pore-forming agent.
    Type: Grant
    Filed: June 1, 1987
    Date of Patent: June 27, 1989
    Assignee: The Dow Chemical Company
    Inventors: Linneaus C. Dorman, Paul A. Meyers
  • Patent number: 4830663
    Abstract: The present invention is directed to novel sulfonylurea compounds, compositions and methods for controlling bolting in sugar beets.
    Type: Grant
    Filed: February 6, 1987
    Date of Patent: May 16, 1989
    Assignee: The Dow Chemical Company
    Inventor: Joseph E. Dunbar
  • Patent number: 4831147
    Abstract: Racemic mixtures of 2-(4-aryloxyphenoxy)propionic acids are resolved into their optically active enantiomers by dissolving the racemate with at least one equivalent of a cinchona alkaloid in a halogenated hydrocarbon solvent and by extracting with a polyhydroxylic solvent.
    Type: Grant
    Filed: July 5, 1988
    Date of Patent: May 16, 1989
    Assignee: The Dow Chemical Company
    Inventor: John W. Russell
  • Patent number: 4828835
    Abstract: A storage stable, water emulsifiable, substantially non-aqueous liquid or low melting solid concentrate adapted for on-site preparation of an aqueous emulsion of an agricultural chemical, consisting essentially of a solution, in(a) a liquid hydrophobic agricultural chemical having biocidal activity, of(b) a solid hydrophobic polymer, in an amount effective to achieve sustained release of (a), and(c) an emulsifying agent, in an amount effective to form a stable oil-in-water emulsion when the concentrate is mixed with water.
    Type: Grant
    Filed: June 5, 1986
    Date of Patent: May 9, 1989
    Assignee: The Dow Chemical Company
    Inventors: Paul A. Meyers, Linneaus C. Dorman
  • Patent number: 4824475
    Abstract: The herbicidal action of a herbicidal triazine upon weeds is enchanced upon also applying to the weeds a second herbicidal component, a butyl or pentyl glycol sulfonate or glycol sulfamate having 3, 5 or 3 substituted phenyl in the 2-position of the butyl or pentyl chain. The glycol sulfonate or sulfamate also adds its own herbicidal action to increase effectiveness.Both components are applied simultaneously as a novel composition which may also contain crop oil or crop oil concentrate. Application is made post-emergently before weeds reach about the 8 leaf stage. Advantageously, in an additional step, triazine alone or in combination with at least some of the sulfonate or sulfamate is also applied at planting or very early postemergently prior to the treatment described.
    Type: Grant
    Filed: September 16, 1985
    Date of Patent: April 25, 1989
    Assignee: The Dow Chemical Company
    Inventors: Lowell D. Markley, Paul S. Zorner
  • Patent number: 4818536
    Abstract: A storage stable, water emulsifiable, substantially non-aqueous, liquid concentrate adapted for on-site preparation of an aqueous emulsion of an agricultural chemical, consisting essentially of a solution of(a) a hydrophobic agricultural chemical having biocidal activity,(b) a solid hydrophobic polymer, in an amount effective to achieve sustained release of (a),(c) a water immiscible organic solvent, and(d) an emulsifying agent, in an amount effective to form a stable oil-in-water emulsion when the concentrate is mixed with water.
    Type: Grant
    Filed: June 5, 1986
    Date of Patent: April 4, 1989
    Assignee: The Dow Chemical Company
    Inventors: Paul A. Meyers, Linneaus C. Dorman
  • Patent number: 4816061
    Abstract: Disclosed is a method for inhibiting microorganisms and/or controlling biofouling of cooling towers by use of certain alkylthioalkylamines such as n-decylthioethylamine.
    Type: Grant
    Filed: October 22, 1986
    Date of Patent: March 28, 1989
    Assignee: The Dow Chemical Company
    Inventors: Richard W. Walter, Jr., Attila G. Relenyi, Robert L. Johnson
  • Patent number: 4814456
    Abstract: Cyanopyridines are recovered from waste streams containing the same using a low temperature liquid phase chlorination step followed by filtration. This process increases recovery of unreacted cyanopyridine and significantly reduces waste stream volume.
    Type: Grant
    Filed: October 13, 1987
    Date of Patent: March 21, 1989
    Assignee: The Dow Chemical Company
    Inventor: Herbert K. Michael
  • Patent number: 4814448
    Abstract: Certain phenyl and N-heterocyclic phosphorothioates and phosphates are prepared by the reaction of an appropriate alkali metal or alkaline earth metal -O-phenyl or N-heterocyclic compound with an appropriate phosphorochloridate or phosphorochloridothioate under alkaline conditions in a liquid reaction medium and in the presence of a tertiary amine catalyst and a nonionic surfactant having a HLB Value of from about 2.5 to about 20 or more.
    Type: Grant
    Filed: March 6, 1987
    Date of Patent: March 21, 1989
    Assignee: The Dow Chemical Company
    Inventors: Sterling C. Gatling, Karl L. Krumel
  • Patent number: 4814451
    Abstract: Certain phenyl and N-heterocyclic phosphorothioates and phosphonothioates and phosphates are prepared by the reaction of an appropriate alkali metal or alkaline earth metal --0-phenyl or N-heterocyclic compound with an appropriate phosphorochloridate, phosphorochloridothioate, phosphonochloridate or phosphonochloridothioate under alkaline conditions in the presence of a tertiary amine catalyst and a nonionic surfactant having an HLB Value of from about 1 to about 20, preferably about 5 to 15, in a two-phase system, one phase being primarily the phosphorate or phosphonate reactant and a complex thereof with the tertiary amine catalyst and the other phase being an aqueous reaction medium comprising water, a buffer system, and the alkali metal or alkaline earth metal-O-phenyl or --O-N-heterocyclic compound, in the substantial or complete absence of an organic solvent the aqueous reaction medium being maintained at pH about 10 to 12 by the buffer system.
    Type: Grant
    Filed: March 20, 1987
    Date of Patent: March 21, 1989
    Assignee: The Dow Chemical Company
    Inventor: Sterling C. Gatling
  • Patent number: 4810793
    Abstract: Novel composition and method for thermally stabilizing an O-pyridyl phosphate insecticide such as chlorpyrifos. The insecticide is mixed with a phthalate ester prior to its incorporation into a thermoplastic resin, such as polyvinyl chloride.
    Type: Grant
    Filed: December 24, 1987
    Date of Patent: March 7, 1989
    Assignee: The Dow Chemical Company
    Inventors: Jiro Kozuma, Hirohiko Hamaguchi, Tetsuya Shibahara, Joseph P. Strasser
  • Patent number: 4808206
    Abstract: Dump release microcapsules are formed of a water-reswellable gel having dispersed therein a sorbtive filler material having a median particle size of not more than 1 micron, such as fumed or precipitated silica. The filler material has an active substance absorbed therein and/or adsorbed thereon. The active material can be 2-chloro-6-(trichloromethyl) pyridine and the gel formed from crosslinked lignin or a lignosulphonate.
    Type: Grant
    Filed: May 17, 1988
    Date of Patent: February 28, 1989
    Assignee: The Dow Chemical Company
    Inventor: Geoffrey W. Smith
  • Patent number: 4808750
    Abstract: Novel fluorophenoxyphenoxypropionates and derivatives thereof possess herbicidal activity selectively in the presence of broadleaf crops. Preemergent and postemergent applications are contemplated.
    Type: Grant
    Filed: July 14, 1986
    Date of Patent: February 28, 1989
    Assignee: The Dow Chemical Company
    Inventors: Richard B. Rogers, B. Clifford Gerwick, III
  • Patent number: 4800082
    Abstract: A solid antimicrobial composition of a halogenated amide such as 2,2-dibromo-3-nitrilopropionamide and a suitable hydrophilic polymer such as hydroxypropyl methyl cellulose with the optional presence of a compression agent and a mold release agent. The invention is also directed to a method for biological control in an aqueous industrial system by contacting the system with the antimicrobial composition.
    Type: Grant
    Filed: March 23, 1987
    Date of Patent: January 24, 1989
    Assignee: The Dow Chemical Company
    Inventors: Robert J. Karbowski, Anita S. Erickson, Charles D. Gartner, Kathleen A. Roy
  • Patent number: 4800195
    Abstract: Novel N-phenyl-N'benzoylureas which are useful as insecticides and acaricides.
    Type: Grant
    Filed: October 13, 1983
    Date of Patent: January 24, 1989
    Assignee: The Dow Chemical Company
    Inventors: Michael J. Burgess, Robert A. Sewell, David P. Clifford
  • Patent number: 4797418
    Abstract: A one step process for the preparation of certain cyanomethyl carboxylates is disclosed which comprises reacting an appropriate acyl compound with a water soluble metal cyanide such as sodium cyanide or potassium cyanide and an aldehyde such as formaldehyde, acetaldehye, or benzaldehyde. Also disclosed is a method for inhibiting bacteria by contacting said bacteria or habitat thereof with an effective amount of an antibacterial cyanomethyl carboxylate.
    Type: Grant
    Filed: August 12, 1986
    Date of Patent: January 10, 1989
    Assignee: The Dow Chemical Company
    Inventor: Andrew T. Au
  • Patent number: 4795746
    Abstract: Novel N-phenyl-N'benzoylureas which are useful as insecticides and acaricides.
    Type: Grant
    Filed: March 4, 1988
    Date of Patent: January 3, 1989
    Assignee: The Dow Chemical Company
    Inventors: Michael J. Burgess, David P. Clifford, Robert A. Sewell
  • Patent number: 4789744
    Abstract: A process for the effective analytical or preparative resolution of the enantiomers of 2-(4-aryloxyphenoxy)propionic acids or the C.sub.1 -C.sub.4 alkyl esters thereof which comprises converting a racemic or partially resolved mixture of said 2-(4-aryloxyphenoxy)propionic acids or the C.sub.1 -C.sub.4 alkyl esters thereof to a pair of diastereomeric terpene esters by reaction with an optically active terpene alcohol and separating the diastereomers of the terpene ester by liquid chromatography with a silica column.
    Type: Grant
    Filed: August 5, 1987
    Date of Patent: December 6, 1988
    Assignee: The Dow Chemical Company
    Inventor: John W. Russell
  • Patent number: 4786732
    Abstract: A method for the effective chromatographic resolution and analysis of the enantiomers of 2-(4-aryloxyphenoxy)propionic acids which comprises dissolving a 2-(4-aryloxyphenoxy)propionic acid in a suitable solvent, injecting the solution into a liquid chromatographic system and eluting the components from the column using an eluent contain R-(-)- or S-(+)-2-pyrrolidinemethanol and an alkanoic acid in a suitable solvent.
    Type: Grant
    Filed: August 5, 1987
    Date of Patent: November 22, 1988
    Assignee: The Dow Chemical Company
    Inventor: John W. Russell