Additional Chalcogen Bonded Directly To The Benzene Ring Patents (Class 558/271)
  • Quaternary ammonium or phosphonium substituted peroxy carbonic acid precursors and their use in detergent bleach compositions
    Patent number: 4751015
    Abstract: A bleach precursor compound, its peroxygen acid derivative, and detergent compositions containing these materials are disclosed herein. The bleach precursor structurally comprises a quaternized ammonium or phosphonium group linked to a carbonate moiety having a leaving group. Upon perhydrolysis in the presence of hydrogen peroxide and a basic aqueous media, there is generated a peroxycarbonic acid bleach.
    Type: Grant
    Filed: March 17, 1987
    Date of Patent: June 14, 1988
    Assignee: Lever Brothers Company
    Inventors: Robert W. Humphreys, Stephen A. Madison
  • Compositions for producing polymers of high refractive index and low yellowness
    Patent number: 4746716
    Abstract: (Allylic carbonate)-functional compounds containing three phenylene groups are useful for forming polymers.
    Type: Grant
    Filed: December 3, 1986
    Date of Patent: May 24, 1988
    Assignee: PPG Industries, Inc.
    Inventor: Stephanie J. Oates
  • P-sulphophenyl carbonates and detergent compositions and detergent additives containing these compounds
    Patent number: 4686061
    Abstract: This disclosure relates to novel compounds of the class of the p-sulphophenyl carbonates, viz. mono-p-sulphophenyl carbonates derived from ethoxylated alcohols and bis-p-sulphophenyl dicarbonates derived from alkane diols and poly(ethylene glycols). The novel compounds are efficient bleaching activators. The disclosure also relates to detergent additives and detergent compositions wherein the novel compounds are contained.
    Type: Grant
    Filed: July 3, 1986
    Date of Patent: August 11, 1987
    Assignee: Akzo NV
    Inventors: Andreas J. H. Nollet, John Meijer, Johannes W. A. Overkamp
  • Liquid-crystalline carbonic acid esters and liquid crystal compositions containing same
    Patent number: 4647398
    Abstract: Novel chiral smectic ester compounds suitable for a display mode utilizing ferroelectric liquid crystals, and liquid crystal compositions containing the same are provided, which compounds are expressed by the formula ##STR1## wherein R represents an alkyl group of 1 to 18 carbon atoms; R* represents an optically active alkyl group of 4 to 18 carbon atoms; X represents either one of a single bond, --O-- ##STR2## A represents ##STR3## and m and n each is 1 or 2.
    Type: Grant
    Filed: January 17, 1985
    Date of Patent: March 3, 1987
    Assignee: Chisso Corporation
    Inventors: Shinichi Saito, Hiromichi Inoue, Kanetsugu Terashima, Takashi Inukai, Kenji Furukawa