Patents Represented by Attorney T. P. Strobaugh

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  • Production of .beta.-hydroxyalkylamides
    Patent number: 5101073
    Abstract: A method of preparing solid hydroxyalkylamides by reacting carboxylic alkyl esters with alkanolamines at controlled reaction temperatures, removing the alcohol byproduct, controlling the temperature of the reaction mixture to form a slurry, maintaining the slurry and recovering the solid hydroxyalkylamides.
    Type: Grant
    Filed: August 27, 1990
    Date of Patent: March 31, 1992
    Assignee: Rohm and Haas Company
    Inventor: Francis W. Schlaefer
  • Process for preparing hydroxyalkyl esters
    Patent number: 4910329
    Abstract: Hydroxyalkyl esters of acrylic and methacrylic acids are prepared using heterogeneous amorphous catalysts.
    Type: Grant
    Filed: January 11, 1989
    Date of Patent: March 20, 1990
    Assignee: Rohm and Haas Company
    Inventor: Christine McDade
  • Herbicidal diphenyl ethers
    Patent number: 4894479
    Abstract: This invention is directed to diphenyl ethers having in the 3' position a radical of the formula: ##STR1## The products are prepared by reacting a 3'-halocarbonyl compound with an appropriate substituted hydroxyl amine. These compounds and their agronomically acceptable salts and compositions containing these compounds as active ingredients are selective herbicides.
    Type: Grant
    Filed: June 1, 1981
    Date of Patent: January 16, 1990
    Assignee: Rohm and Haas Company
    Inventors: John W. Ashmore, Ted Fujimoto
  • 4-Trifluoromethyl-4'-nitrodiphenyl ethers
    Patent number: 4877897
    Abstract: Compounds of the formula: ##STR1## wherein X is hydrogen, halo, trihalomethyl, alkyl, nitro or cyano; X.sup.1 is hydrogen, halo, or trihalomethyl; R.sup.1 and R.sup.2 are hydrogen, alkyl, phenyl or benzyl; n is 1 to 5, and Z is nitro, and compositions containing these compounds exhibit herbicidal activity.
    Type: Grant
    Filed: November 10, 1982
    Date of Patent: October 31, 1989
    Assignee: Rohm and Haas Company
    Inventors: Colin Swithenbank, Ted. T. Fujimoto
  • Herbicidal 4-trifluoromethyl-3'-nitrogen-substituted-4'-substituted diphenyl ethers
    Patent number: 4419124
    Abstract: The herbicidal 4-trifluoromethyl-3'-nitrogen-substituted-4'-substituted diphenyl ethers comprise a class of compounds that are highly effective herbicides.
    Type: Grant
    Filed: October 19, 1981
    Date of Patent: December 6, 1983
    Assignee: Rohm and Haas Company
    Inventor: Colin Swithenbank
  • Herbicidal 4-trifluoromethyl-3'-oxygen-substituted-4'-substituted diphenyl ethers
    Patent number: 4419122
    Abstract: The herbicidal 4-trifluoromethyl-3'-oxygen-substituted-4'-substituted diphenyl ethers comprise a class of compounds that are highly effective herbicides.
    Type: Grant
    Filed: October 19, 1981
    Date of Patent: December 6, 1983
    Assignee: Rohm and Haas Company
    Inventor: Colin Swithenbank