Oxygen Single Bonded To Oxygen, Or Sulfur Single Bonded To Sulfur (e.g., Peroxy Compounds, Etc.) Patents (Class 558/151)
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Publication number: 20130296598Abstract: 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: ApplicationFiled: May 6, 2013Publication date: November 7, 2013Applicant: Board of Regents, The Univeristy of Texas SystemInventors: Pranesh Aswath, Xin Chen, BoHoon Kim, Ronald L. Elsenbaumer
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Publication number: 20120189566Abstract: A pantethine phosphate ester represented by the following formula (1) or formula (2) exhibits superior tyrosinase inhibitory effect and melanin production inhibitory effect.Type: ApplicationFiled: September 6, 2010Publication date: July 26, 2012Applicant: DAIICHI FINE CHEMICAL CO., LTD.Inventors: Koichi Wada, Koichi Sumi, Shihoko Shimomura
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Patent number: 7034176Abstract: 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: GrantFiled: December 16, 2004Date of Patent: April 25, 2006Assignee: Astrazeneca ABInventors: Thomas Elebring, Peter Guzzo, Anders Holmén, Thomas Olsson, Marianne Swanson, Sverker Von Unge
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Patent number: 6761832Abstract: 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: GrantFiled: February 10, 2000Date of Patent: July 13, 2004Assignee: Rhein Chemie Rheinau GmbHInventors: Ludger Heiliger, Alfred Pauli, Joachim Hegmann, Clemens Schudok, Thomas Früh
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Patent number: 6403826Abstract: 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: GrantFiled: September 11, 2000Date of Patent: June 11, 2002Assignee: Ciba Specialty Chemicals CorporationInventors: Adalbert Braig, Andreas Kramer, Jean-Pierre Wolf, Markus Frey
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Patent number: 5980619Abstract: 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: GrantFiled: February 12, 1997Date of Patent: November 9, 1999Assignee: Ciba Specialty Chemicals CorporationInventors: Adalbert Braig, Andreas Kramer, Jean-Pierre Wolf, Markus Frey
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Patent number: 5565599Abstract: 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: GrantFiled: August 24, 1995Date of Patent: October 15, 1996Assignee: Rhein Chemie Rheinau GmbHInventors: Hans-Joachim Graf, Lothar Steger, Klaus Kn orr, Hartmut Schulz, Volker Sch afer, Thomas Scholl, R udiger Schubart, Manfred Schweiger
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Patent number: 5550276Abstract: 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: GrantFiled: June 7, 1995Date of Patent: August 27, 1996Assignee: Ciba-Geigy CorporationInventors: Hermann O. Wirth, Hans-Helmut Friedrich, Kay S. Groninger
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Patent number: 5051531Abstract: 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: GrantFiled: May 31, 1988Date of Patent: September 24, 1991Assignee: Atochem North America, Inc.Inventor: Jose Sanchez
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Patent number: 5037813Abstract: 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: GrantFiled: December 11, 1986Date of Patent: August 6, 1991Assignee: Burroughs Wellcome Co.Inventors: Malcolm H. Black, Robert J. Blade, Robert J. Peek
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Patent number: 5028729Abstract: The elminination of sulfur from bis-(dialkoxythiophosphoryl)-tetrasulfides to bis-(dialkoxythiophosphoryl)-trisulfides on certain silicate fillers, carbon black and aluminium oxide is quantitative.Type: GrantFiled: February 2, 1990Date of Patent: July 2, 1991Assignee: Bayer AktiengesellschaftInventors: Rudiger Schubart, Hans-Wilhelm Engels
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Patent number: 5021175Abstract: 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: GrantFiled: October 4, 1990Date of Patent: June 4, 1991Assignee: Elf FranceInventors: Laurent Germanaud, Robert Nouguier