Sulfur Bonded Directly To Silicon Patents (Class 556/426)
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Publication number: 20130181161Abstract: One-part moisture curable sealant compositions and methods of making the same are provided. The compositions include a silyl-functional polythioether and a polyepoxide. Methods of making sealant compositions are also provided.Type: ApplicationFiled: January 12, 2012Publication date: July 18, 2013Applicant: PRC-DeSoto International, Inc.Inventors: Carissa Pajel, Alfredo M. Reyes, JR., Raquel A. Keledjian, Gordon Zabrecky
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Patent number: 8470197Abstract: A crosslinked polysulfide-containing cycloaliphatic compound, useful as a crosslinker for filled sulfur-vulcanizable elastomer compositions, is represented by the general formula: [(CaH2a-)mG1(-CbH2bSx—)n?m]o[CcH2c-G2-CdH2dSy—]p[R]q wherein G1 is a saturated, monocyclic aliphatic group of valence n containing from 5 to 12 carbon atoms and optionally containing at least one halogen or a saturated monocyclic silicone [RSiO—]n[R2SiO—]r group of valence n; G2 is a saturated, divalent cyclic aliphatic group of valence 2 containing from 5 to 12 carbon atoms and optionally containing at least one halogen or a saturated monocyclic silicone [RSiO—]n[R2SiO—]r group of valence n; each R independently is a selected from the group consisting of a hydrogen atom, monovalent hydrocarbon of up to 20 carbon atoms and a halogen atom; each occurrence of subscripts a, b, c, d, m, n, o, p, q, x and y independently is an integer wherein a is 2 to 6; b is 2 to 6; c is 1 to 6; d is 1 to 6; m is 1 or 2; n is 3 to 5; o is a positiveType: GrantFiled: October 30, 2008Date of Patent: June 25, 2013Assignee: Momentive Performance Materials Inc.Inventors: Richard W. Cruse, William Michael York, Carla Recker, Thomas Kramer, Katharina Herzog
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Publication number: 20130150511Abstract: There is disclosed an organosilicon compound of the following general formula (1): wherein R1 is an alkyl group or an aryl group, R2 is an alkyl group, an aryl group, an aralkyl group, an alkenyl group or an organoxy group, R3 is an alkyl group or an aryl group, n is an integer of 1 to 3, and m is an integer of 1 to 3.Type: ApplicationFiled: December 6, 2012Publication date: June 13, 2013Applicant: SHIN-ETSU CHEMICAL CO., LTD.Inventor: Shin-Etsu Chemical Co., Ltd.
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Patent number: 8399695Abstract: This invention relates to organometallic precursor compounds represented by the formula (H)mM(R)n wherein M is a metal or metalloid, R is the same or different and is a substituted or unsubstituted, saturated or unsaturated, heterocyclic radical containing at least one nitrogen atom, m is from 0 to a value less than the oxidation state of M, n is from 1 to a value equal to the oxidation state of M, and m+n is a value equal to the oxidation state of M, a process for producing the organometallic precursor compounds, and a method for producing a film or coating from the organometallic precursor compounds.Type: GrantFiled: December 19, 2007Date of Patent: March 19, 2013Assignee: Praxair Technology, Inc.Inventor: Scott Houston Meiere
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Patent number: 8273913Abstract: This invention describes an amidation process whereby amino acids of the Formulae IIA or IIB can be activated and treated with an amine in the presence of a base to yield amides of the Formula (I), without loss of optical purity.Type: GrantFiled: March 31, 2008Date of Patent: September 25, 2012Assignee: Merck Canada Inc.Inventors: Paul O'Shea, Francis Gosselin
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Patent number: 7790819Abstract: Cyclic organosilicon compounds that may be employed as an electron donor for polymerization catalyst systems, polymerization catalyst systems employing the cyclic organosilicon compounds as an electron donor, methods of making the polymerization catalyst systems, and polymerization processes to produce polyolefin are disclosed. The organosilicon compounds, which are useful as electron donors in polymerization catalyst systems for the production of polyolefins, are represented by the formula: where Q1, Q2, Q3, and Q4 may be identical or different and are each hetero-atoms selected from the group consisting of N, O, S, Si, B, and P. R1, R2, R3, and R4 may be identical or different and are each hydrocarbon-based substituents to Q1, Q2, Q3, and Q4, respectively. The subscripts i, j, m, and n are independently 0 to 3 R5 and R6 may be identical or different and are each a bridging group with a backbone chain length between the two hetero-atoms Q1 and Q3, and Q2 and Q4, respectively, 1-8 atoms.Type: GrantFiled: April 13, 2009Date of Patent: September 7, 2010Assignee: Formosa Plastics Corporation, U.S.A.Inventors: Yiqun Fang, Honglan Lu
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Publication number: 20090203929Abstract: An amino alkoxy-modified silsesquioxane (AMS) comprising one or more compounds selected from the group consisting of an amino AMS, an amino/mercaptan co-AMS, an amino/blocked mercaptan co-AMS, mixtures thereof, and a weak acid-neutralized solid or aqueous solution thereof, and a method of making the amino AMS, are presented. The compounds are useful in compounding, processing, cure and storage of silica-reinforced rubbers because they contain low levels of volatile organic compounds (VOC).Type: ApplicationFiled: December 31, 2008Publication date: August 13, 2009Inventors: William L. Hergenrother, Ashley Hilton, Michael Hayes, Walter Tomaszewski, James H. Pawlow, Terrence E. Hogan
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Patent number: 7339067Abstract: The invention concerns a process for producing mercaptoorganyl(alkoxysilanes), wherein bis(alkoxysilylorganyl)polysulfides are hydrogenated at temperatures of <190° C. and pressures of <100 bar with hydrogen and a transition metal catalyst without the addition of water, alcohol or H2S.Type: GrantFiled: September 7, 2005Date of Patent: March 4, 2008Assignee: Evonik Degussa GmbHInventors: Karsten Korth, Philipp Albert, Dorit Wolf, Steffen Seebald, Reimund Pieter, Alfreg Alig
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Patent number: 7332619Abstract: The invention relates to a process for the preparation of mercaptoorganyl(alkoxysilanes), wherein bis(alkoxysilylorganyl)polysulfides are hydrogenated with hydrogen and a transition metal catalyst in a solvent without the addition of alcohols, H2S or water.Type: GrantFiled: September 7, 2005Date of Patent: February 19, 2008Assignee: Degussa AGInventors: Karsten Korth, Philipp Albert, Dorit Wolf, Steffen Seebald, Reimund Pieter, Alfreg Alig
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Patent number: 6949666Abstract: The method for producing polyorganosiloxane from at least one type of organosilicon compound having a siloxane unit or alkoxysilane by the equilibrating reaction involving cleavage and recombination of the silicon-oxygen bond as a method carried out in the presence of an acidic catalyst capable of giving the product in high productivity and yield, corrosive to the system to a limited extent, and remaining in the product to a limited extent or degrading product quality to a limited extent if it remains, wherein a solid, acidic zirconium oxide catalyst is used as the acidic catalyst.Type: GrantFiled: November 1, 2002Date of Patent: September 27, 2005Assignee: Nippon Unicar Company LimitedInventors: Yasunori Chayama, Ikutaro Morikawa, Hiroaki Shoji
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Patent number: 6881855Abstract: Silanes of the formula Ra1R4-a-xSiLx??(I) where each R is identical or different and is a monovalent, optionally substituted hydrocarbon radical which is free of aliphatic carbon—carbon multiple bonds and has from 1 to 18 carbon atoms per radical, R1 is an optionally substituted 2-norbornyl radical, L is a leaving group, a is 1, 2 or 3 and x is 1 or 2, with the proviso that the sum of a+x?4, are useful for protecting functional groups of organic compounds (2) which have at least one functional group having an active hydrogen atom, preferably as a hydroxyl group —OH, a thiol groups —SH, an amine group —NH— or —NH2, a carboxyl group —COOH, or an amide group —CONH— or —CONH2.Type: GrantFiled: September 26, 2002Date of Patent: April 19, 2005Assignee: Consortium fur Elektrochemische Industrie GmbHInventors: Dieter Heldmann, Oliver Schaefer, Juergen Stohrer
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Patent number: 6770724Abstract: Method is provided for selectively opening rings of polyhedral oligomeric silsesquioxane (POSS) compounds to from functionalized derivatives thereof or new POSS species. Per the inventive method, the POSS compound is reacted with an acid to selectively cleave bonds in the POSS rings to add functionalities thereto for grafting, polymerization or catalysis, to thus form new familes of POSS derived compounds. Also provided are the new compounds so formed. Method is also provided for expanding rings of POSS compounds. Per the inventive method, a POSS compound is reacted with silane reagents to obtain an expanded POSS framework with added Si ring substituends to form new families of POSS compounds. Also provided are the new compounds so formed.Type: GrantFiled: February 16, 2001Date of Patent: August 3, 2004Assignee: The United States of America as represented by the Secretary of the Air ForceInventors: Joseph D. Lichtenhan, Timothy S. Haddad, Frank J. Feher, Daravong Soulivong
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Patent number: 6657072Abstract: The invention relates to a method of preparing lithium complex salts and their intermediaries and to the use of these in electrolytes.Type: GrantFiled: July 10, 2002Date of Patent: December 2, 2003Assignee: Merck Patent Gesellschaft mit beschränkter HaftungInventors: Andrei Leonov, Armin de Meijere, Michael Schmidt
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Publication number: 20030023106Abstract: Process for the production of yellow bis(3-[trialkoxy-silyl]alkyl)polysulfanes with an iodine color index of ≦10 mg iodine/100 ml, in which an organic acid is added to neutral chloroalkyltrialkoxysilane and then reacted with sodium polysulfide (NPS) or sodium sulfide (Na2S) and sulfur or sodium polysulfide (NPS) and Na2S in alcohol.Type: ApplicationFiled: July 3, 2002Publication date: January 30, 2003Inventors: Roland Krafczyk, Ulrich Deschler, Bjorn Treffeisen
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Publication number: 20020055646Abstract: Disclosed herein is a process for the manufacture of a blocked mercaptosilane wherein the process is selected from the group consisting of: (1) reacting a mercaptosilane and a monoacid anhydride corresponding to a thioester group present in the desired product; (2) reacting an alkali salt of a mercaptosilane with the appropriate acid anhydride or acid halide; (3) transesterifying a mercaptosilane and an ester in the presence of an alkali metal of an acid corresponding to the ester; (4) transesterifying a thioester silane and another ester; (5) transesterifying a 1-sila-2-thiacyclopentane or a 1-sila-2-thiacyclohexane and an ester; and (6) reacting an alkali metal salt of a thioacid with a haloalkylsilane.Type: ApplicationFiled: November 9, 2001Publication date: May 9, 2002Applicant: WITCO CORPORATIONInventors: Richard W. Cruse, Robert J. Pickwell, Keith J. Weller, Eric R. Pohl
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Publication number: 20020049347Abstract: The invention relates to a process for the preparation of organosilylalkylpolysulfanes, of the general formula I (R1R2R3SiR4)2SX (I) by reaction of organosilylalkylpolysulfanes of the general formula II (R1R2R3SiR4)2Sy (II) with an ionic sulfide of the general formula M+2S2− (III) and an organosilylalkyl halide of the general formula R1R2R3SiR4X (IV), the long-chain organosilylalkylpolysulfane of the general formula (II) and the organosilylalkyl halide of the general formula (IV) being initially introduced into the reaction vessel and the ionic sulfide of the general formula (III) being added to this solution in several portions.Type: ApplicationFiled: July 13, 2001Publication date: April 25, 2002Inventors: Alfred Alig, Christoph Batz-Sohn, Ulrich Deschler, Rudolf Michel, Jorg Munzenberg, Raymund Sonnenschein, Werner Will, Gerd Rainhard Zezulka, Karl-Heinz Rutzeil
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Patent number: 6329082Abstract: Hetero-spiro compounds of the formula (I), where &PSgr; is an element of the 4th main group of the Periodic Table with the exception of carbon, preferably Sn, Ge or Si, particularly preferably Ge or Si, and K1 and K2 are, independently of one another, conjugated systems, for use in electroluminescence devices. The compounds of the formula (I) have a good solubility in customary organic solvents, improved film-forming properties and a significantly reduced tendency to crystallize.Type: GrantFiled: May 22, 1997Date of Patent: December 11, 2001Assignee: Hoechst AktiengesellschaftInventors: Willi Kreuder, Donald Lupo, Josef Salbeck, Hermann Schenk, Thomas Stehlin
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Patent number: 6235922Abstract: Compounds having the following formula I, and pharmaceutically acceptable salts thereof, including dual inhibitors of ACE and NEP and selective ACE inhibitors: wherein: Y1 and Y2 are each independently hydrogen, alkyl, aryl, halogen, or alkoxy; X is O or S(O)t; A is t is zero, one or two; m and n are independently zero or one; and wherein R, R5, R5a, R5b, R6, R7, R11, q and r are defined herein.Type: GrantFiled: December 4, 1998Date of Patent: May 22, 2001Assignee: Bristol-Myers Squibb Co.Inventors: Jeffrey A. Robl, Chong-Qing Sun
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Patent number: 6229036Abstract: Sulfanylsilanes of the formula X1X2X3Si—A—S—SiR1R2R3 are prepared by reacting mercaptosilanes of the formula X1X2X3Si—Alkyl—SH with chlorosilanes Cl—SiR1R2R3. They are used as coupling agents in rubber mixtures.Type: GrantFiled: September 29, 1999Date of Patent: May 8, 2001Assignee: Degussa-Hüls AktiengesellschaftInventors: Christoph Batz-Sohn, Hans-Detlef Luginsland
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Patent number: 6211393Abstract: Silicon compound of general formula a), in which A, B, C, D are radicals which are different from OH and are covalently bonded to Si; two or three of these bond that are linked to Si are Si—O—C, Si—S—C or Si—N—C type bonds and are hydrolyzable in vivo, forming Si—OH bonds that are biologically active especially when in contact with living tissue, the A and D bonds of formula b) being invariably hydrolyzable; at least one of the hydrolyzable bonds corresponds to an acyloxy, aryloxy or vinyloxy radical; at least one of the compounds obtained after hydrolysis of the hydrolyzable bonds is a stabilizer, and the non-hydrolyzable bonds, which are of the Si—C type, correspond to hydrocarbon or fluorocarbon radicals for which Si is not directly linked to the phenyl ring.Type: GrantFiled: July 22, 1996Date of Patent: April 3, 2001Assignee: Exsymol S.A.M.Inventors: Marie Christine Seguin, Jean Gueyne, Jean-Francois Nicolay, Andre Franco
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Patent number: 6172250Abstract: A process for the preparation of biologically active silicon compounds by hydrolysis of a precursor which produces a compound which prevents the formation of polymers from the silicon hydrolyzed bonds.Type: GrantFiled: July 16, 1996Date of Patent: January 9, 2001Assignee: Exsymol S.A.M.Inventors: Marie-Christine Seguin, Jean Gueyne, Jean-Francois Nicolay, Andre Franco
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Patent number: 6051731Abstract: 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: GrantFiled: September 4, 1997Date of Patent: April 18, 2000Assignee: Allergan Sales, Inc.Inventors: Vidyasagar Vuligonda, Min Teng, Richard L. Beard, Alan T. Johnson, Yuan Lin, Roshantha A. Chandraratna
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Patent number: 6046349Abstract: Oligomeric organosilicon compounds are disclosed of the formula I ##STR1## wherein R.sup.1, R.sup.2, R.sup.3 independently of one another denote H, (C.sub.1 -C.sub.4)alkyl, (C.sub.1 -C.sub.4) alkoxy, (C.sub.1 -C.sub.4) haloalkoxy, (C.sub.1 -C.sub.4)haloalkyl, phenyl, aryl or aralkyl andZ denotes an alkylidene radical having 0-6 carbon atoms, x can be a statistical average of 1-6 andn=1-150 and . . . means that z can be bonded either to the one or the other C atom, and the particular free valency is occupied by a hydrogen.and their use in rubber mixtures and for the production of shaped articles, in particular pneumatic tires.Type: GrantFiled: June 30, 1999Date of Patent: April 4, 2000Assignee: Degussa-Huels AktiengesellschaftInventors: Christoph Batz-Sohn, Hans-Detlef Luginsland
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Patent number: 5985853Abstract: A subject of the invention is the products of formula (I): ##STR1## in which: R.sub.1, R.sub.2 and R.sub.3, identical or different, represent a linear, branched or cyclic alkyl radical, an alkenyl or alkynyl radical, containing up to 8 carbon atoms, optionally substituted by one or more halogen atoms, an aryl radical optionally substituted by one or more halogen atoms, one or more hydroxyl radicals, one or more linear or branched alkyl radicals, optionally substituted by one or more halogen atoms, one or more O-alkyl or S-alkyl radicals optionally substituted by one or more halogen atoms,X represents a hydrogen atom, a halogen atom, an alkyl, alkenyl, alkynyl, O-alkyl, O-alkenyl, O-alkynyl, S-alkyl, S-alkenyl or S-alkynyl radical, optionally substituted by one or more halogen atoms and containing up to 11 carbon atoms, an aryl radical containing up to 14 carbon atoms, a C.tbd.N, NO.sub.2, NH.sub.2, ##STR2## CO.sub.2 alk.sub.3 radical, alk.sub.1, alk.sub.2 and alk.sub.Type: GrantFiled: December 4, 1997Date of Patent: November 16, 1999Assignee: Hoechst Marion RousselInventors: Sylvain Laugraud, deceased, by Pierre Laugtaud, legal representative, by Rolande Laugraud, legal representative, by Philippe Laugraud, legal representative, by Bruno Laugraud, legal representative, by Martine Sollossi, legal representative, Nicole Reinier
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Patent number: 5773639Abstract: A layer forming material is a compound which has a structure of six-membered ring coordinated to Cu and containing Si, and of which general formula is represented by the following chemical formula: ##STR1## wherein X.sub.1 and X.sub.2 are elements of the VI group of the same or different types which are coordinate-bonded to Cu, and of which examples include O, S, Se, Te and the like, at least one of Y.sub.1, Y.sub.2 and Y.sub.3 is Si, L is a group which has a double or triple bond and which is able to supply electrons to Cu, and each of R.sub.1 and R.sub.2 is any of SiF.sub.3, SiH.sub.3, CF.sub.3 and CH.sub.3 for example.Type: GrantFiled: March 19, 1996Date of Patent: June 30, 1998Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Akemi Kawaguchi, Yuka Terai, Kousaku Yano
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Patent number: 5654469Abstract: Compounds of Formula I ##STR1## wherein the symbols are as defined in the specification.Type: GrantFiled: May 31, 1996Date of Patent: August 5, 1997Assignee: AllerganInventors: Vidyasagar Vuligonda, Min Teng, Richard L. Beard, Alan T. Johnson, Yuan Lin, Roshantha A. Chandraratna
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Patent number: 5502084Abstract: The present invention relates to an organopolysiloxane composition containing a cyclopentenyl radical and crosslinkable in a thin layer by exposure to ultraviolet light, characterized in that it comprises:A. 100 parts of diorganopolysiloxane containing at least 3 cyclopentenyl radicals per molecule, each of these groups being directly linked, by an SiC bond, to a different silicon atom, andB. an effective amount of at least one photoinitiator.Application of the compositions to the production of coatings, especially for the production of non-stick coatings on paper, and for the encapsulation of printed circuits.Type: GrantFiled: November 21, 1990Date of Patent: March 26, 1996Assignee: Rhone-Poulenc ChimieInventors: Jacques Cavezzan, Jean-Marc Frances
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Patent number: 5486633Abstract: The present invention relates, in general, to photochemically removable protecting groups, and, in particular, to the use of styrylsilyl groups to protect reactive functional groups, such as, hydroxyl, amino and thiol groups.Type: GrantFiled: November 10, 1994Date of Patent: January 23, 1996Assignee: Duke UniversityInventors: Michael C. Pirrung, Yong Rok Lee
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Patent number: 5457235Abstract: The present invention provides liquid crystals that are diphenyldiacetylenes of the general formulas: ##STR1## where W, X, Y and Z are, independently of one another, a halogen atom, a hydrogen atom or a trihalomethyl group, T.sub.1 and T.sub.2, independently of one another can be an alkyl, alkene, alkoxy, alkenoxy, ether, thioalkyl, thioalkenyl, haloalkyl, haloalkoxy or haloalkylether groups having from three to twenty carbon atoms or a silylalkyl, silylalkenyl, silylalkoxy or silylthioalkyl group having from three to twenty-eight carbon atoms and wherein M.sub.1 and M.sub.2 can both be single bonds or one of M.sub.1 or M.sub.2 can be a trans-1,4-cyclohexylene or a --CH.sub.2 CH.sub.2 -trans-1,4-cyclohexylene.Type: GrantFiled: January 11, 1993Date of Patent: October 10, 1995Assignee: Displaytech, Inc.Inventors: Michael D. Wand, Sean D. Monahan, William N. Thurmes, Kundalika M. More
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Patent number: 5300375Abstract: This invention is directed to a novel acrylic alkoxy substituted silane and to a single phase solid solvent-containing electrolyte having recurring units derived from such silane incorporated within the solid polymeric matrix of the solid electrolyte. A novel electrolytic cell that incorporates the subject electrolyte also is provided. The specific molecular structure exhibited by such solid polymeric matrix is believed to advantageously facilitate the positioning of an inorganic ion salt and solvent between adjacent polymeric molecules during service within the solid electrolyte.Type: GrantFiled: April 19, 1993Date of Patent: April 5, 1994Assignee: Valence Technology, Inc.Inventor: Benjamin Chaloner-Gill
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Patent number: 5294501Abstract: This invention is directed to a novel silane acrylate and to a single phase solid solvent-containing electrolyte having recurring units derived from the silane acrylate incorporated within the solid polymeric matrix of such solid electrolyte. A novel electrolytic cell that incorporates the subject electrolyte also is provided. The specific molecular structure exhibited by such solid polymeric matrix is believed to advantageously facilitate the positioning of an inorganic ion salt and solvent between adjacent polymeric molecules during service within the solid electrolyte.Type: GrantFiled: April 19, 1993Date of Patent: March 15, 1994Assignee: Valence Technology, Inc.Inventor: Benjamin Chaloner-Gill
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Patent number: 5118777Abstract: A polydimethylsiloxane compound terminated at one end by a branched aminoalkyl group, having the average formula ##STR1## wherein R.sup.1 and R.sup.4 are monovalent hydrocarbon groups having 1 to 20 carbon atoms, R.sup.2 and R.sup.3 are alkylene groups having at least two carbon atoms, Me is a methyl radical, m is an integer between 6 and 1,000 and n is an integer between zero and 6, is disclosed. The polydimethylsiloxane of the invention can be easily prepared by the method described and imparts improved surface properties, such as water repellency and slipperiness, to organic resins modified therewith.Type: GrantFiled: November 13, 1990Date of Patent: June 2, 1992Assignee: Toray Dow Corning SiliconeInventor: Tadashi Okawa
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Patent number: 5118724Abstract: The present invention proposes a silane and an organopolysiloxane containing a cyclopentenyl radical, characterized in that the silane or the organopolysiloxane has a radical Y of the formula: ##STR1## directly linked to the silicon atom. The silanes according to the invention can be used as coupling and crosslinking agents, in particular in the compositions of acrylic paints.The diorganopolysiloxanes according to the invention can be used as base polymer of a silicone composition which is crosslinkable to an elastomer, in particular by exposure to atmospheric oxygen.Type: GrantFiled: November 21, 1990Date of Patent: June 2, 1992Assignee: Rhone-Poulenc ChimieInventors: Jean-Marc Frances, Frederic Leising
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Patent number: 5026862Abstract: A novel process for the preparation of compounds in all their possible isomeric forms of the formula ##STR1## wherein R is selected from the group consisting of hydrogen, alkyl of 1 to 18 carbon atoms, an easily cleavable derivative of the alcohol R-OH and a residue of an alcohol used in the pyrethrinoid series and when Y is --COOR' or --COSR', W is hydrogen and W is halogen when Y is --COOR' and R' is selected from the group consisting of hydrogen, optionally unsaturated alkyl of 1 to 18 carbon atoms and optionally substituted with at least one functional group, aryl optionally substituted with at least one functional group and heterocycle optionally substituted with at least one functional group and when W is hydrogen, the double bond has Z configuration and when W is halogen, the double bond has the E configuration comprising reacting a compound of the formula ##STR2## wherein R has the above definition with a compound of the formula ##STR3## wherein W and Y have the above definitions and A is alkylene ofType: GrantFiled: October 3, 1989Date of Patent: June 25, 1991Assignee: Roussel UclafInventors: Jean Tessier, Jean-Pierre Demoute
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Patent number: 5006159Abstract: The present disclosure is directed to substituted cyclohexanedione compounds, the preparation of said compounds, compositions containing said compounds and the use of said compositions in the selective pre- and postemergent kill and control of grassy weeds in the presence of various crop plants.Type: GrantFiled: March 30, 1990Date of Patent: April 9, 1991Assignee: DowElancoInventors: Lowell D. Markley, Christopher T. Hamilton, Beth A. Swisher, Jacob Secor
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Patent number: 4962218Abstract: Novel compositions of silicone/polyether block copolymers are provided which are useful as surfactants in several classes of polyurethane foam production. While conventional copolymers have a polysiloxane backbone with pendant polyethers, the surfactants of the present invention are the reverse with siloxane pendants on a polyether chain. These novel non-hydrolyzable polysiloxane polyoxyalkylene copolymers which are characterized by an "inverted" structure, i.e., polyoxyalkylene backbones with lateral and/or terminally pendant polysiloxanes, represent species that are of a narrow molecular weight and compositional distribution and are free of unreacted polyether or non-modified silicone oil diluent. These surfactants are useful in various urethane foam systems and can also display aqueous wetting properties.Type: GrantFiled: November 7, 1988Date of Patent: October 9, 1990Assignee: Union Carbide Chemicals and Plastics Company Inc.Inventors: Charles H. Blevins, George H. Greene, Paul L. Matlock, Gerald J. Murphy
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Patent number: 4956484Abstract: A process for producing a silane or siloxane compound containing at least one cycloalkyl ring by hydrogenation of a corresponding derivative containing at least one aromatic ring in the presence of a Raney nickel catalyst modified with chromium.Type: GrantFiled: March 3, 1988Date of Patent: September 11, 1990Assignee: Instituto Guido Donegani S.p.A.Inventors: Francesco Gementi, Loris Sogli, Raffaele Ungarelli
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Patent number: 4943647Abstract: Hexaalkyldisilthiane compounds (e.g., hexamethyldisilthiane) are synthesized by reaction of lithium disulfide and a halotrialkylsilane (e.g., chlorotrimethylsilane) in a non-oxygenated solvent (e.g., acetonitrile).Type: GrantFiled: March 30, 1989Date of Patent: July 24, 1990Assignee: Akzo America Inc.Inventors: Elliot I. Band, Suzanne T. Eberhart
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Patent number: 4918197Abstract: A method is provided for silylating aromatic acylhalide by effecting reaction between an aromatic acylhalide and halogenated polysilane in the presence of an effective amount of a supported transition metal catalyst, such as a transition metal catalyst supported by an organic or inorganic substrate.Type: GrantFiled: August 15, 1988Date of Patent: April 17, 1990Assignee: General Electric CompanyInventors: Jonathan D. Rich, Terry E. Krafft, Philip J. McDermott
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Patent number: 4885378Abstract: Hexaalkylcyclotrisilthiane compounds (e.g., hexamethylcyclotrisilthiane) are synthesized by reaction of lithium disulfide and a dihalodialkylsilane (e.g., dichlorodimethylsilane) in a non-oxygenated solvent (e.g., acetonitrile).Type: GrantFiled: May 4, 1989Date of Patent: December 5, 1989Assignee: Akzo America Inc.Inventors: Elliot I. Band, Suzanne T. Eberhart
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Patent number: 4744812Abstract: Substituted diphenyl ethers of the formula ##STR1## where Z.sub.1, Z.sub.2 and Z.sub.3 are hydrogen, halogen, nitro, cyano, carboxyl, alkyl, haloalkyl, alkoxy, haloalkoxy, alkylmercapto, haloalkylmercapto, alkylsulfinyl, haloalkylsulfinyl, alkylsulfonyl or haloalkylsulfonyl, Z.sub.4 is hydrogen, cyano, alkyl, alkoxy, acetoxy or alkylmercapto, Y is hydrogen, halogen, cyano or nitro, X is oxygen, sulfur, sulfinyl or sulfonyl, and A is hydrogen, unsubstituted or substituted alkyl ##STR2## and can also be sulfonyl ##STR3## when X is oxygen, and, when Z.sub.4 is alkoxy or alkylmercapto, can also be a methylene chain --(CH.sub.2).sub.m -- by which the radicals Z.sub.4 --CH--X-- are bonded to form a ring, R.sub.1 is hydrogen, methyl, ethyl or n-propyl, R.sub.2 is cyano, methoxy, ethoxy or ##STR4## where B is OH, ONa, O--alkyl, unsubstituted or substituted phenoxy, --NH.sub.2, --NH--alkyl or --N(alkyl).sub.2, n is 1, 2 or 3, R.sub.3 and R.sub.Type: GrantFiled: March 4, 1985Date of Patent: May 17, 1988Assignee: BASF AktiengesellschaftInventors: Adolf Parg, Bruno Wuerzer, Gerhard Hamprecht
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Patent number: 4709054Abstract: A method is provided for silylating organic substrates, utilizing a halogenated polysilane, such as 1,1,2,2-tetrachloro dimethyldisilane and an aromatic acyl halide, for example, trimellitic anhydride acid chloride in the presence of a transition metal catalyst.Type: GrantFiled: August 13, 1985Date of Patent: November 24, 1987Assignee: General Electric CompanyInventor: Jonathan D. Rich
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Patent number: 4698407Abstract: Disclosed is a one-pack curing type composition having an excellent storage stability and rapid curing property after application. The composition comprises a polymer having in the molecule at least two structures represented by the formula: ##STR1## wherein R.sup.1, R.sup.2 and R.sup.3 independently represent a group selected from an alkyl group having 1 to 6 carbon atoms, a phenyl group and a chloromethyl group, and an oxidizing agent.Type: GrantFiled: June 9, 1986Date of Patent: October 6, 1987Assignee: Toray Thiokol Company LimitedInventors: Masashi Nakagima, Hiroshi Kojima, Tatsuro Matsui, Noriaki Dokoshi
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Patent number: 4680410Abstract: The invention is a process for the preparation of a N- or S-1,2-ethylenically unsaturated organic compound which comprises(a) contacting a N- or S-silylated organic compound with an aldehyde, wherein the aldehyde has a hydrogen atom bonded to the carbon adjacent to the carbonyl moiety, at elevated temperatures under conditions such that a N- or S-1-siloxyalkyl-substituted organic compound is prepared; and(b) pyrolyzing the N- or S-1-siloxyalkyl-substituted organic compound under conditions such that the siloxy moiety is elminated to prepare a N- or S-1,2-ethylenically unsaturated compound.Type: GrantFiled: March 2, 1984Date of Patent: July 14, 1987Assignee: The Dow Chemical CompanyInventor: Pen C. Wang
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Patent number: 4496720Abstract: A novel process for the preparation of thioethers comprising reacting a silylated thiol of the formulaR--S--SiR.sub.1 R.sub.2 R.sub.3 Iwherein R is an organic group and R.sub.1, R.sub.2 and R.sub.3 are individually selected from the group consisting of alkyl of 1 to 4 carbon atoms with an organic halide, sulfate or sulfonate in the presence of hexamethylphosphoric triamide as a solvent or co-solvent preferably under neutral conditions in aprotic solvents at a temperature between 0.degree. and 150.degree. C.Type: GrantFiled: March 7, 1983Date of Patent: January 29, 1985Assignee: Gist-Brocades N.V.Inventors: Cornelis A. Bruynes, Theodorus K. Jurriens
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Patent number: 4442015Abstract: Refrigeration fluid compositions for refrigeration and air-conditioning circuits include a usual refrigerant fluid together with a liquid, hydrolyzable organosilane which remains in the liquid phase throughout the air-conditioning circuit, and which is capable of removing moisture from the interior of the circuit and sealing leaks.Type: GrantFiled: July 12, 1982Date of Patent: April 10, 1984Assignee: Joseph J. PackoInventors: Joseph J. Packo, Donald L. Bailey
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Patent number: 4431832Abstract: This invention relates to polymeric organosilicon compounds containing aryl radicals and to a method for improving the gliding or slipping properties of organic fibers treated therewith. The polymeric organosilicon compounds are represented by the formulaM.sub.a R.sub.b Si{[(OSiR.sub.2).sub.n D].sub.m (OSiR.sub.2).sub.n OSiR.sub.3-d M.sub.d }.sub.4-a-bin which R is hydrocarbon or substituted hydrocarbon radical, D represents radicals of the formula--X.sub.a A--X.sub.a (A--X.sub.a).sub.c --,X represents the groups: ##STR1## --NR'--, --O--, --S--, --SO.sub.2 --, --R"--, --NR'R", ##STR2## --OR"--, --SR"--, --SO.sub.2 R", where R' is hydrogen or R, R" is a bivalent aliphatic hydrocarbon radical, A is a bivalent or substituted bivalent aromatic hydrocarbon radical, M represents radicals of the formula--X.sub.a --A--X.sub.a (A--X.sub.a).sub.c H,a is 0 or 1, b is 0, 1 or 2, c is 0 or a number of from 1 to 5, m is 0 or a number of from 1 to 20, n is a number of from 1 to 1,000 with the proviso that at least one OSiP.Type: GrantFiled: August 24, 1982Date of Patent: February 14, 1984Assignee: Wacker-Chemie GmbHInventors: Peter Huber, Peter August, Helga Lampelzammer, Willi Primas
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Patent number: 4360686Abstract: Active hydrogen-containing compounds are silylated by contacting with trimethylsilyl trichloroacetate at elevated temperatures in the presence of an initiator.Type: GrantFiled: September 3, 1981Date of Patent: November 23, 1982Assignee: The Dow Chemical CompanyInventors: Pen-Chung Wang, James M. Renga
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Patent number: 4310640Abstract: A composition comprising (a) an organic compound having at least one hydrolyzable silyl group and (b) an organic amine and/or an alkali metal hydroxide. The composition is curable upon exposure to moisture, and has superior properties, such as hardness, toughness and stain resistance, when used for example as a coating. The composition can be utilized as a coating material.Type: GrantFiled: May 16, 1980Date of Patent: January 12, 1982Assignee: Kanegafuchi Kogaku Kogyo Kabushiki KaishaInventors: Yasushi Kato, Hisao Furukawa, Shoichi Matsumura, Saori Nakatsuka
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Patent number: 4299974Abstract: Disclosed is a process for preparing N-protected 2-aminoethanethiol which proceeds via the silyl covered sulfur intermediate: ##STR1## wherein R.sup.1 is triorganosilyl and R.sup.2 is a readily removable N-protecting group.Type: GrantFiled: June 16, 1980Date of Patent: November 10, 1981Assignee: Merck & Co., Inc.Inventors: Thomas M. H. Liu, Ichiro Shinkai, Meyer Sletzinger