Oxygen Single Bonded To Oxygen, Or Sulfur Single Bonded To Sulfur (e.g., Peroxy Compounds, Etc.) Patents (Class 558/151)
  • Publication number: 20130296598
    Abstract: Alkylthioperoxydiphosphates having an alkyl group between about 4 and 18 carbons, a decomposition temperature between about 150 and 300° C. and a wear volume between about 0.0025 and 0.0015 mm3 in HFRB testing, and methods of making same. Lubricant additives that includes the alkylthioperoxydiphosphates.
    Type: Application
    Filed: May 6, 2013
    Publication date: November 7, 2013
    Applicant: Board of Regents, The Univeristy of Texas System
    Inventors: Pranesh Aswath, Xin Chen, BoHoon Kim, Ronald L. Elsenbaumer
  • Publication number: 20120189566
    Abstract: A pantethine phosphate ester represented by the following formula (1) or formula (2) exhibits superior tyrosinase inhibitory effect and melanin production inhibitory effect.
    Type: Application
    Filed: September 6, 2010
    Publication date: July 26, 2012
    Applicant: DAIICHI FINE CHEMICAL CO., LTD.
    Inventors: Koichi Wada, Koichi Sumi, Shihoko Shimomura
  • Patent number: 7034176
    Abstract: Intermediates used in the preparation of compounds of formula I, or a stereoisomer thereof, or a pharmaceutically acceptable form of either selected from the group consisting of a salt, a solvate and a combination thereof, with the exception of i) the racemate of (3-amino-2-hydroxypropyl)phosphinic acid; and ii) (2R/S,3R)-(3-amino-2-hydroxybutyl)phosphinic acid.
    Type: Grant
    Filed: December 16, 2004
    Date of Patent: April 25, 2006
    Assignee: Astrazeneca AB
    Inventors: Thomas Elebring, Peter Guzzo, Anders Holmén, Thomas Olsson, Marianne Swanson, Sverker Von Unge
  • Patent number: 6761832
    Abstract: This invention relates to a process for the production of dithiophosphoric acid poly-sulfide mixtures, which is characterized in that dithiophosphoric acid disulfides are reacted with sulfur at elevated temperatures. The dithiophosphoric acid polysulfide mixtures produced using the process according to the present invention are used as sulfur donors for the vulcanization of natural and synthetic rubbers and in the latex vulcanization of natural and synthetic rubber latex.
    Type: Grant
    Filed: February 10, 2000
    Date of Patent: July 13, 2004
    Assignee: Rhein Chemie Rheinau GmbH
    Inventors: Ludger Heiliger, Alfred Pauli, Joachim Hegmann, Clemens Schudok, Thomas Früh
  • Patent number: 6403826
    Abstract: A description is given of compounds of the formula in which the general symbols are as defined in claim 1, and of their zirconium, bismuth and calcium salts, and of the salts with the compounds of the formula II in which the general symbols are as defined in claim 1, as corrosion inhibitors in coating compositions for protecting metallic surfaces.
    Type: Grant
    Filed: September 11, 2000
    Date of Patent: June 11, 2002
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Adalbert Braig, Andreas Kramer, Jean-Pierre Wolf, Markus Frey
  • Patent number: 5980619
    Abstract: A description is given of compounds of the formula ##STR1## in which the general symbols are as defined in claim 1, and of their zirconium, bismuth and calcium salts, and of the salts with the compounds of the formula II ##STR2## in which the general symbols are as defined in claim 1, as corrosion inhibitors in coating compositions for protecting metallic surfaces.
    Type: Grant
    Filed: February 12, 1997
    Date of Patent: November 9, 1999
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Adalbert Braig, Andreas Kramer, Jean-Pierre Wolf, Markus Frey
  • Patent number: 5565599
    Abstract: Disclosed herein are stabilized dithiophosphoric acid polysulphides of the formula (I) ##STR1## in which R is a C.sub.1 -C.sub.20 alkyl, cycloalkyl, aryl or aralkyl residue andx is an integer from 2 to 15,containing as stabilizer 1 to 20 wt.% of a carboxylic acid of the general formula R'COOH, in which R' is a C.sub.1 -C.sub.20 alkyl residue, a cycloalkyl residue, an aryl residue or an aralkyl residue, and 1 to 20 wt.% of calcium oxide or zinc oxide.
    Type: Grant
    Filed: August 24, 1995
    Date of Patent: October 15, 1996
    Assignee: Rhein Chemie Rheinau GmbH
    Inventors: Hans-Joachim Graf, Lothar Steger, Klaus Kn orr, Hartmut Schulz, Volker Sch afer, Thomas Scholl, R udiger Schubart, Manfred Schweiger
  • Patent number: 5550276
    Abstract: Compounds of the general formula I ##STR1## in which n is 1, 2 or 3 and in which X is oxygen or sulfur, T has the meaning of --S--, --S--S--, --S--S--, --S--S--S--S--, --S--S--S--S--S--, ##STR2## and Y has the meaning of ##STR3## in which Z has the meaning of --H, --COR.sup.13, --COOR.sup.13 or --CONHR.sup.13, and Q has the meaning of oxygen or --NR.sup.0 --, and R.sup.1, R.sup.2, R.sup.0, R.sup.4 and R.sup.13 are as defined in claim 1, with the proviso that the compound of the formula C.sub.2 H.sub.5 --S--CH.sub.2 CH(OH)--P(OC.sub.2 H.sub.5).sub.2 is excepted.The invention also relates to compositions containing the compounds of the formula I and organic materials, for example functional liquids and, in particular, lubricants.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: August 27, 1996
    Assignee: Ciba-Geigy Corporation
    Inventors: Hermann O. Wirth, Hans-Helmut Friedrich, Kay S. Groninger
  • Patent number: 5051531
    Abstract: The present invention relates to a novel antioxidant-peroxide compound of Structure A,(Y--[R--OO--X).sub.x --An].sub.y Ain which the definitions of X, Y, R, An, x, and y are given in the Summary of the Invention section, for example, t-butyl peroxy-3-(3,5-di-t-butyl-4-hydroxypheneyl) propionate, processes for producing polymeric composition of enhanced oxidative stability via initiation of polymerization of ethylenically unsaturated monomers, curing of elastomers and unsaturated polyester resins, modification of polypropylene and other polymers and copolymers, and crosslinking of olefin polymers and copolymers, and the resulting polymers having enhanced oxidative stability.
    Type: Grant
    Filed: May 31, 1988
    Date of Patent: September 24, 1991
    Assignee: Atochem North America, Inc.
    Inventor: Jose Sanchez
  • Patent number: 5037813
    Abstract: A compound of Formula (I):R.sup.1 (CA.dbd.CA.sup.1).sub.x --C(.dbd.X)NR.sup.2 R.sup.3(I)where R.sup.1 is alkyl optionally substituted by a group selected from alkoxy, alkenyl, alkynyl, alkenyloxy, alkynyloxy, aryl, aryloxy, arylalkoxy and cycloalkyl fused to an aryl ring; x=1 or 2; X=O or S; each A and A.sup.1 is independently hydrogen, alkyl or haloalkyl; R.sup.2 is alkyl, alkenyl or cycloalkyl any of which may be substituted by halo, alkenyl, alkyl, cycloalkyl, alkynyl, dioxalanylalkyl or alkoxy; and R.sup.3 is selected from groups (A) to (D):(A) --Y.dbd.X.sup.1 --(R.sup.4).sub.a where X.sup.1 is O or S, Y is phosphorus or carbon, R.sup.4 is hydrogen, alkyl, alkoxy, acyl or CO.sub.2 R.sup.5 is alkyl or aryl, and a is 1 or 2.(B) --S(R.sup.6)(O).sub.bwhere R.sup.6 alkyl, aryl, aryloxy, alkoxy, thioalkoxy, thioaryl, alkythio, alkoxythio or arylthio and b is 0, 1 or 2(C) --S(O).sub.c NR.sup.7 R.sup.8where c is 0, 1 or 2, R.sup.7 is --COR.sup.9 or --CO.sub.2 R.sup.9 where R.sup.
    Type: Grant
    Filed: December 11, 1986
    Date of Patent: August 6, 1991
    Assignee: Burroughs Wellcome Co.
    Inventors: Malcolm H. Black, Robert J. Blade, Robert J. Peek
  • Patent number: 5028729
    Abstract: The elminination of sulfur from bis-(dialkoxythiophosphoryl)-tetrasulfides to bis-(dialkoxythiophosphoryl)-trisulfides on certain silicate fillers, carbon black and aluminium oxide is quantitative.
    Type: Grant
    Filed: February 2, 1990
    Date of Patent: July 2, 1991
    Assignee: Bayer Aktiengesellschaft
    Inventors: Rudiger Schubart, Hans-Wilhelm Engels
  • Patent number: 5021175
    Abstract: Lubricating oil additives are provided which have extreme pressure, antiwear and antioxidant properties. The additives are dithiophosphorous disymmetric bisulphides of the formula: ##STR1## wherein X and Y represent an oxygen or sulphur atom or a methylene group and R.sub.1 and R.sub.2 and R.sub.3 represent a hydrocarbon radical, a polyether, a polythioether or a hydrogen atom.The invention also relates to a process for their preparation and to lubricating compositions containing the additives.
    Type: Grant
    Filed: October 4, 1990
    Date of Patent: June 4, 1991
    Assignee: Elf France
    Inventors: Laurent Germanaud, Robert Nouguier