Patents Represented by Attorney Edward J. Whitfield

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  • Herbicidally active oxadiazole ureas
    Patent number: 4449998
    Abstract: This invention concerns certain 3-(5-substituted-1,2,4-oxadiazol-3-yl)-1,1-substituted ureas having herbicidal activity, and their use to control weeds.
    Type: Grant
    Filed: May 20, 1982
    Date of Patent: May 22, 1984
    Assignee: PPG Industries, Inc.
    Inventors: Jerome M. Lavanish, Barry Van Gemert
  • Antidotal compounds for use with herbicides
    Patent number: 4443628
    Abstract: This invention relates to N-(2,2-dialkoxyethyl)-N-substituted-2-2-dichloroacetamides, their use as antidotes and herbicidal compositions containing these compounds.
    Type: Grant
    Filed: December 22, 1980
    Date of Patent: April 17, 1984
    Assignee: PPG Industries, Inc.
    Inventor: Jay K. Rinehart
  • Herbicidally active quinoline or quinoxaline acetophenone oxime derivatives
    Patent number: 4440930
    Abstract: Disclosed are certain herbicidally active quinoline or quinoxaline acetophenone oxime derivatives, herbicidal compositions containing these compounds and the use of such compounds to control the growth of noxious plants, i.e., weeds.
    Type: Grant
    Filed: October 25, 1982
    Date of Patent: April 3, 1984
    Assignee: PPG Industries, Inc.
    Inventors: Dennis K. Krass, Sidney B. Richter
  • 3-[5- Or 3-substituted-1,2,4-oxadiazol-3- or -5-yl]-1-substituted-4-substituted-5-substituted or unsubstituted-2-imidazolidinones
    Patent number: 4426527
    Abstract: This invention concerns certain 3-[5- or 3-substituted-1,2,4-oxadiazol-3- or -5-yl]-1-substituted-4-substituted-5-substituted or unsubstituted-2-imidazolidinones having herbicidal activity and the use thereof to control weed growth.
    Type: Grant
    Filed: February 12, 1982
    Date of Patent: January 17, 1984
    Assignee: PPG Industries, Inc.
    Inventors: Jerome M. Lavanish, Barry Van Gemert
  • Process of preparation of substituted diphenyl ethers
    Patent number: 4424393
    Abstract: This invention relates to a process for preparing herbicidally active substituted diphenylethers. Also, this invention provides novel intermediates useful in the production of said diphenylethers.
    Type: Grant
    Filed: August 24, 1981
    Date of Patent: January 3, 1984
    Assignee: PPG Industries, Inc.
    Inventors: Frederick F. Guzik, Steven E. Pamer, Sidney B. Richter
  • Composition and method for controlling growth of tobacco suckers
    Patent number: 4404016
    Abstract: Sucker growth on tobacco plants is controlled by applying to the topped plants, after application of a contact sucker control agent or a contact and a systemic sucker control agent, a solution of alkyl N-(halophenyl)carbamate, e.g., CIPC, in alkylene glycol, e.g., ethylene glycol.
    Type: Grant
    Filed: September 28, 1981
    Date of Patent: September 13, 1983
    Assignee: PPG Industries, Inc.
    Inventors: Thomas C. Zinninger, Joseph Deli
  • 4-Trifluoromethylphenoxy-benzaldoximes
    Patent number: 4401602
    Abstract: Compounds, such as 5-(2-chloro-4-trifluoromethylphenoxy)-2-nitroacetophenone oxime-O-(acetic acid, methyl ester) and 5-(2-chloro-4-trifluoromethylphenoxy)-2-chloroacetophenone oxime-O-(acetic acid, methyl ester), are useful for postemergence and preemergence control of weeds, and are represented by Formula I of the application.
    Type: Grant
    Filed: April 30, 1982
    Date of Patent: August 30, 1983
    Assignee: PPG Industries, Inc.
    Inventor: Dennis K. Krass
  • Process for preparing substituted diphenyl ethers
    Patent number: 4400530
    Abstract: A process for preparing a diphenyl ether of the formula: ##STR1## wherein: X is hydrogen or halogen;Y is hydrogen, halogen, cyano, trifluoromethyl, or an alkyl radical containing 1 to 4 carbon atoms;Z is oxygen or sulfur;R is a methylidene or monosubstituted methylidene, wherein the substituent is selected from the group consisting of alkyl, oxoalkyl and hydroxyalkyl radicals containing from 1 to 4 carbon atoms; andR.sup.
    Type: Grant
    Filed: March 12, 1981
    Date of Patent: August 23, 1983
    Assignee: PPG Industries, Inc.
    Inventor: William S. Grove, deceased
  • N-(Optionally substituted 1,3-dioxolan- or dioxan-2-ylmethyl)-N-alkyl, alkenyl, or alkynyl-2,2-dichloroacetamides
    Patent number: 4400197
    Abstract: Disclosed are antidotal compounds for use with active thiocarbamate and/or chloroacetanilide herbicides to control weeds without affecting crops such as corn and soybeans. Compositions of the antidote and the active thiocarbamates and/or chloroacetanilides are also disclosed.
    Type: Grant
    Filed: June 22, 1981
    Date of Patent: August 23, 1983
    Assignee: PPG Industries, Inc.
    Inventor: Jay K. Rinehart
  • Production of peroxydicarbonates
    Patent number: 4394328
    Abstract: A process for preparing peroxydicarbonate is disclosed wherein a mixture of chloroformate and dilute aqueous hydrogen peroxide is reacted with a dilute aqueous alkali metal hydroxide solution.
    Type: Grant
    Filed: March 27, 1980
    Date of Patent: July 19, 1983
    Assignee: PPG Industries, Inc.
    Inventors: James A. Barter, David E. Kellar
  • Substituted benzoic or phenylacetic acid esters having plant growth regulating properties
    Patent number: 4388473
    Abstract: This invention relates to substituted benzoic acid or phenylacetic acid ester compounds exhibiting meristematic activity and to the use of such compounds in regulating plant growth.
    Type: Grant
    Filed: October 29, 1981
    Date of Patent: June 14, 1983
    Assignee: PPG Industries, Inc.
    Inventors: Sidney B. Richter, Barry Van Gemert
  • Method for controlling weed growth using herbicidally 5-(2-chloro-4-trifluoromethyl)-, or (4-trifluoromethyl or 2,6-dichloro-4-trifluoromethylphenoxy)-2-nitro-substituted carbonyl oxime-O-alkyl ethers
    Patent number: 4375981
    Abstract: Disclosed are compounds such as 5-(2-chloro-4-trifluoromethylphenoxy)-2-nitroacetophenone oxime-O-methyl ether, and the method of controlling weeds, such as wild oats with the compounds.
    Type: Grant
    Filed: November 21, 1980
    Date of Patent: March 8, 1983
    Assignee: PPG Industries, Inc.
    Inventor: Dennis K. Krass
  • Alkyl N-3-halo-,N-3,5-dihalobenzoyl-N-isopropylaminoacetate herbicides
    Patent number: 4354032
    Abstract: Disclosed are novel herbicides, such as ethyl N-3,5-dichlorobenzoyl-N-isopropylaminoacetate, as well as their use against weeds.
    Type: Grant
    Filed: August 7, 1978
    Date of Patent: October 12, 1982
    Assignee: PPG Industries, Inc.
    Inventor: Walker A. Strong
  • Process for making colloidal sols of antimony pentoxide in an aqueous medium
    Patent number: 4348301
    Abstract: A colloidal dispersion of hydrous antimony pentoxide particles is made by a process which comprises introducing a particulate antimony component selected from the group consisting of antimony metal, oxidizable antimony oxides and mixtures thereof into an essentially aqueous medium and contacting said antimony component with hydrogen peroxide at a temperature of from about 0.degree. C. to about the decomposition temperature of the reaction mixture for a length of time sufficient to convert at least a portion of the antimony component to colloidal particles of hydrous antimony pentoxide.
    Type: Grant
    Filed: August 10, 1976
    Date of Patent: September 7, 1982
    Assignee: PPG Industries, Inc.
    Inventors: Charles E. Crompton, Abdulla M. Z. Kazi, Inderjit S. Soni
  • N-Alkyl-N-[3-(alkoxyalkyl)phenyl]-2-haloacetamide herbicides
    Patent number: 4348223
    Abstract: This invention concerns certain N-alkyl-N-[3-(alkoxyalkyl)phenyl]-2-haloacetamides having herbicidal activity, their preparation, and the control of weeds therewith.
    Type: Grant
    Filed: December 5, 1980
    Date of Patent: September 7, 1982
    Assignee: PPG Industries, Inc.
    Inventor: William S. Grove
  • Acids and esters of 5-(2-optionally substituted-4-trifluoromethyl-6-optionally substituted phenoxy)-2-nitro, -halo, or-cyano alpha substituted phenyl carboxy oximes, and method of controlling weeds with them
    Patent number: 4344789
    Abstract: Compounds, such as 5-(2-chloro-4-trifluoromethylphenoxy)-2-nitroacetophenone oxime-O-(acetic acid, methyl ester) and 5-(2-chloro-4-trifluoromethylphenoxy)-2-chloroacetophenone oxime-O-(acetic acid, methyl ester), are useful for postemergence and preemergence control of weeds, and are represented by Formula I of the application.
    Type: Grant
    Filed: April 15, 1980
    Date of Patent: August 17, 1982
    Assignee: PPG Industries, Inc.
    Inventor: Dennis K. Krass
  • Purification and recovery of ethylene dichloride
    Patent number: 4333799
    Abstract: Ethylene dichloride is separated from unsaturated organic impurities such as trichloroethylene and benzene by extractive distillation in the presence of a high boiling chloroalkene solvent, such as perchloroethylene.
    Type: Grant
    Filed: December 15, 1980
    Date of Patent: June 8, 1982
    Assignee: PPG Industries, Inc.
    Inventor: Aurelio M. Crico
  • Trichlorophenoxy alkanoic acid free of chlorinated dibenzo-p-dioxins
    Patent number: 4326882
    Abstract: This invention provides as new compositions of matter 2,4,5-trichlorophenoxy acetic acid (2,4,5-T) and (2-2,4,5-trichlorophenoxy) propionic acid (Silvex) including the hydrolyzable salts, aliphatic esters and amides of these acids, which compositions are free of chlorinated dibenzo-p-dioxins.
    Type: Grant
    Filed: April 26, 1979
    Date of Patent: April 27, 1982
    Assignee: PPG Industries, Inc.
    Inventors: Sidney B. Richter, William S. Grove
  • Stabilization of methylchloroform
    Patent number: 4326924
    Abstract: Methylchloroform undergoing purification distillation is stabilized against decomposition by conducting the distillation in the presence of polyalkylene glycol having an average molecular weight greater than 150.
    Type: Grant
    Filed: November 17, 1980
    Date of Patent: April 27, 1982
    Assignee: PPG Industries, Inc.
    Inventor: Frances M. Cummings
  • N-(2-Cyanoalkoxy)methyl-N-(2-,3-, or 6-alkylphenyl)-.alpha.-haloacetamides
    Patent number: 4319917
    Abstract: Disclosed are certain N-(2-cyanoalkoxy)methyl-N-(2-,3-, or 6-alkylphenyl)-.alpha.-haloacetamides having herbicidal activity, their mode of preparation and the use thereof to control weeds.
    Type: Grant
    Filed: March 12, 1981
    Date of Patent: March 16, 1982
    Assignee: PPG Industries, Inc.
    Inventor: William S. Grove, deceased