From Alkyl Sulfates Patents (Class 560/235)
  • O- or S-substituted dihydronaphthalene derivatives having retinoid and/or retinoid antagonist-like biological activity
    Patent number: 5808124
    Abstract: Compounds of the formula ##STR1## where the symbols have the meaning described in the application, have retinoid-like or retinoid antagonist-like biological activity.
    Type: Grant
    Filed: June 21, 1996
    Date of Patent: September 15, 1998
    Assignee: Allergan
    Inventors: Richard L. Beard, Min Teng, Alan T. Johnson, Vidyasagar Vuligonda, Roshantha A. Chandraratna
  • Process for production of alkyl acrylates
    Patent number: 4814493
    Abstract: This invention describes an improved process for the production of C.sub.1 -C.sub.8 alkyl acrylate by the reaction of a C.sub.1 -C.sub.8 alkyl alcohol with acrylic acid in the presence of esterification catalysts and soluble manganese or cerium ions.
    Type: Grant
    Filed: July 5, 1983
    Date of Patent: March 21, 1989
    Assignee: Hoechst Celanese Corporation
    Inventors: Edward F. Dougherty, Mark O. Scates, James L. Paul
  • Process for preparing triarylmethyl methacrylate
    Patent number: 4666633
    Abstract: A triarylmethyl methacrylate is produced by reacting methacrylic acid with a triarylmethylating agent in an inert, organic solvent containing therein an excess amount of an amine or in the presence of an anion exchanger.
    Type: Grant
    Filed: August 10, 1984
    Date of Patent: May 19, 1987
    Assignee: Daicel Chemical Industries, Ltd.
    Inventors: Yoichi Yuki, Ryoji Noyori, Masahiko Hayashi