Silicon And Carbon Bonded Directly To The Same Oxygen Patents (Class 556/482)
-
Patent number: 6426392Abstract: This invention is related to a thermoplastic crosslinked product obtainable by the crosslinking reaction of a composition comprising (A) a polymer having a silicon-containing group and (B) a tetravalent tin compound, said silicon-containing group having a hydrolyzable group bound to a silicon atom and capable of crosslinking through formation of a siloxane bond.Type: GrantFiled: May 30, 2000Date of Patent: July 30, 2002Assignee: Kaneka CorporationInventors: Makoto Chiba, Junji Takase
-
Patent number: 6420585Abstract: A method for the preparation of triorganooxysilanes containing one silicon-hydrogen bond is provided which comprises reacting at least one tetraorganooxysilane with at least one metal hydride.Type: GrantFiled: September 14, 2001Date of Patent: July 16, 2002Assignee: General Electric CompanyInventor: Florian Johannes Schattenmann
-
Publication number: 20020091181Abstract: The present invention relates to siloxy compounds of the formula 1Type: ApplicationFiled: February 12, 2002Publication date: July 11, 2002Inventor: Thierry Florent Edme Materne
-
Patent number: 6417374Abstract: The present invention relates to a process for the preparation of optically active 6-hydroxymethyl-4-(tert-butyldimethylsilyloxy)-(4R,6S)-tetrahydro-2H-2-pyranone(&bgr;-Hydroxy-&dgr;-lactone) an important intermediate in the synthesis of biologically active drugs e.g. compactin, atorvastatin, fluvastatin, cholesterol lowering drugs.Type: GrantFiled: February 15, 2001Date of Patent: July 9, 2002Assignee: Council of Scientific & Industrial ResearchInventors: Sandeep Raghunath Ghorpade, Uttam Ramrao Kalkote, Subhash Prataprao Chavan, Sunil Ramchandra Bhide, Thottappillil Ravindranathan
-
Patent number: 6413354Abstract: A silicone composition that is oil resistant when cured is described. More particularly, this composition includes a silanol terminated silicone fluid, an organic plasticizer, a filler and a crosslinker, wherein the cured composition remains adhesive after exposure to oil. The present compositions provide superior adhesive properties after exposure to oil than conventional RTV silicone adhesives having M-stopped silicone plasticizers. Methods of making and using cured elastomeric products made from the present compositions are also provided.Type: GrantFiled: February 17, 2000Date of Patent: July 2, 2002Assignee: Loctite CorporationInventors: Hans E. Haas, Frank L. Kovacs
-
Patent number: 6413646Abstract: The present invention is directed to acyl and carbonate blocked phenolic silanes of the general structural formula is: (RIC(═O)O)yC6RII6−y−z[CxH2xSi(ORIII)3−a(RIV)a]z where RI is H, CH3 or RVO; RII is H or RVO; RIII is alkyl, phenyl or acyl from 1 to 6 carbon atoms; RIV is hydrogen, alkyl or phenyl from 1 to 6 carbon atoms; RV is a linear or branched alkyl group from 1 to 4 carbon atoms; y is an integer from 1 to 3; z is an integer from 1 to 3; x is an integer from 2 to 6 and a is an integer from 0 to 2.Type: GrantFiled: July 29, 1999Date of Patent: July 2, 2002Assignee: Crompton CorporationInventors: Eric R. Pohl, Scot M Turner
-
Publication number: 20020077250Abstract: The present invention relates to an advantageous preparation of aryl compounds by cross-coupling reaction of a substituted aryl halide compound with a Grignard reagent in the presence of a nickel catalyst wherein the substituted aryl compounds and a novel nickel catalyst are initially placed in a reaction vessel and the Grignard reagent is metered in at the reaction temperature.Type: ApplicationFiled: September 24, 2001Publication date: June 20, 2002Inventors: Markus Eckert, Guido Giffels, Hans-Christian Militzer, Thomas Prinz
-
Patent number: 6399785Abstract: The invention is directed to multiply-substituted fullerene derivatives of novel configurations, and methods for their preparation and use. The methods involve the combinatorial synthesis of a library of fullerene derivatives and comprises the steps of forming a mixture of fullerene derivatives by reacting the Cn fullerene with two or more reactive precursor compounds, and removing the unreacted compounds to yield the fullerene derivatives having the desired activity. Methods for the identification and screening of a combinatorial library of fullerenes by 3He-nuclear magnetic resonance and electrospray mass spectrometry to define members with the optimal desired activity are also provided.Type: GrantFiled: October 30, 2000Date of Patent: June 4, 2002Assignee: C-Sixty, Inc.Inventors: Randall B. Murphy, Stephen R. Wilson, Quing Lu
-
Publication number: 20020061980Abstract: Rubbery polymers made by anionic polymerization can be coupled with tin halides or silicon halides to improve the characteristics of the rubber for use in some applications, such as tire treads. In cases where the rubbery polymer is synthesized by anionic polymerization utilizing a polar modifier it is difficult to attain a high level of coupling.Type: ApplicationFiled: September 21, 2001Publication date: May 23, 2002Inventors: Wen-Liang Hsu, Adel Farhan Halasa
-
Patent number: 6388097Abstract: The present invention relates to a process for the preparation of optically active 6-hydroxymethyl-4-tert-butyldimethylsilyloxy)-(4S,6R)-tetrahydro-2H-2-pyranone (&bgr; Hydroxy &dgr; Lacone) and the compound 3-oxo-5-(tert.Type: GrantFiled: February 15, 2001Date of Patent: May 14, 2002Assignee: Council of Scientific & Industrial ResearchInventors: Sandeep Raghunath Ghorpade, Uttam Ramrao Kalkote, Subhash Prataprao Chavan, Sunil Ramchandra Bhide, Thottappillil Ravindranathan
-
Patent number: 6376691Abstract: A liquid precursor for forming a transparent metal oxide thin film comprises a first organic precursor compound. In one embodiment, the liquid precursor is for making a conductive thin film. In this embodiment, the liquid precursor contains a first metal from the group including tin, antimony, and indium dissolved in an organic solvent. The liquid precursor preferably comprises a second organic precursor compound containing a second metal from the same group. Also, the liquid precursor preferably comprises an organic dopant precursor compound containing a metal selected from the group including niobium, tantalum, bismuth, cerium, yttrium, titanium, zirconium, hafnium, silicon, aluminum, zinc and magnesium. Liquid precursors containing a plurality of metals have a longer shelf life. The addition of an organic dopant precursor compound containing a metal, such as niobium, tantalum or bismuth, to the liquid precursor enhances control of the conductivity of the resulting transparent conductor.Type: GrantFiled: September 1, 1999Date of Patent: April 23, 2002Assignee: Symetrix CorporationInventors: Jolanta Celinska, Carlos A. Paz de Araujo, Joseph D. Cuchiaro, Jeffrey W. Bacon, Larry D. McMillan
-
Patent number: 6372843Abstract: The present invention relates to a process for preparing multifunctionalized polyorganosiloxanes (POSs) comprising alkoxyl functional siloxyl units and siloxyl units each having an SH functional group, which consists in introducing the SH functional group by the reaction of H2S on a precursor POS of formula: A—(RXSiO)a—(RYSiO)b—B where R is especially a C1-C6 alkyl radical, X is a C1-C15 alkoxyl radical, Y is a C2-C30 hydrocarbon group which includes an ethylenically unsaturated group from which the SH functionality derives, a is a number ranging from 1 to 150, b is a number ranging from 1 to 150, the number a+b ranging from 2 to 300 and A and B are terminal groups which are selected respectively, from, in particular, on the one hand (R)3SiO— radicals taken alone or as mixtures with (R)2XSiO— and/or R(X)2SiO— and/or (X)3SiO— radicals and on the other hand —Si(R)3 radicals taken alone or as mixtures with —SiX(R)2 and/or —Si(X)2R and/or —Si(Type: GrantFiled: April 19, 2000Date of Patent: April 16, 2002Assignee: Rhodia ChimieInventors: Pierre Barruel, Yves Bomal, Nathalie Guennouni, Gerard Mignani, Christian Priou
-
Publication number: 20020042533Abstract: Organosilicon compounds of the formula I 1Type: ApplicationFiled: August 17, 2001Publication date: April 11, 2002Inventors: Christoph Batz-Sohn, Rudolf Michel, Hans-Detlef Luginsland
-
Patent number: 6365643Abstract: The invention relates to modified cationic photoinitiators which exhibit a reduced tendency to crystallize, to a process for reducing the crystallization tendency of cationic photoinitiators, and to the use of the photoinitiators of the invention for the radiation curing of cationically curing compositions. The inventive cationic photoinitiators have the formula (IV): [R1—I—R2]+X− where R1 is a radical R2 is a radical in which Ar is a monovalent aromatic hydrocarbon radical and D being a radical and the remaining variables are defined herein.Type: GrantFiled: January 13, 2000Date of Patent: April 2, 2002Assignee: Th. Goldschmidt AGInventors: Sascha Oestreich, Wolfgang Müller
-
Patent number: 6361870Abstract: The invention relates to a coating material comprising condensates of at least one compound (A) of the general formula RaMZb (a=0-3; b=1-4; a+b=3, 4), where R is a non-hydrolyzable organic group, and at least one compound (B) of the general formula R′xMZy(x=1-3; y=1-3; x+y=3, 4), where R is a non-hydrolyzable organic group and at least one R′ contains a perfluoro polyether structure separated from M by at least two atoms, where M is an element from the periodic table of elements selected from the main groups III-V or from the subgroups II-IV and Z is a hydrolyzable organic group, and where at least one R is not equal to at least one R′.Type: GrantFiled: March 27, 2000Date of Patent: March 26, 2002Inventors: Rudolf Steffl, Reiner Kasemann, Wolfgang Burger
-
Patent number: 6359046Abstract: The present invention discloses novel hydrocarbon core polysulfide silanes and methods of preparing the hydrocarbon core polysulfide silanes. Preferably, the silanes of the present invention contain assemblies of a single unit of a hydrolyzable silane group, tethered to one end of a chain of sulfur atoms, and several of these assemblies are bound to a common central hydrophobic core via the other end of the sulfur atoms chain. The hydrocarbon core polysulfide silanes may be incorporated into filled elastomeric compositions providing improved dispersiblity of the filler materials. Mineral fillers may be pre-treated with the hydrocarbon core polysulfide silanes prior to use in elastomeric compositions.Type: GrantFiled: September 8, 2000Date of Patent: March 19, 2002Assignee: Crompton CorporationInventor: Richard W. Cruse
-
Patent number: 6346636Abstract: This description addresses ionic compositions of matter comprising positively charged cations [Ct]+ and negatively charged anions [A]−, said anion comprising a central core Group 13 element to which are bound fluoroaryl ligands, at least one of said fluoroaryl ligands being substituted with a siloxy group represented by the symbols—SiOR3, wherein R is a C1-C30 hydrocarbyl or hydrocarbylsilyl substituent. [Ct]+ may be selected from any capable of use with olefin polymerization catalysts and typically will be from the group consisting of anilinium and ammonium cations, trityl carbenium cations, Group 11 metal cations, silylium cations, the cations of the hydrated salts of Group 1 or 2 metals, and derivatives of the foregoing anilinium, ammonium, trityl carbenium, and silylium cations containing C1-C20 hydrocarbyl, hydrocarbylsilyl, or hydrocarbylamine substituents for one or more hydrogen atoms of said cations.Type: GrantFiled: June 23, 2000Date of Patent: February 12, 2002Assignee: ExxonMobil Chemical Patents, Inc.Inventor: George Rodriguez
-
Publication number: 20020010354Abstract: Trialkoxysilanes are prepared by reacting silicon metal with an alcohol in an inert solvent in the presence of a copper catalyst by a process in which the copper catalyst contains copper(II) oxide having a BET surface area of ≧10 m2/g. Furthermore, this copper catalyst is used for the preparation of trialkoxysilanes by reacting silicon metal with an alcohol.Type: ApplicationFiled: May 21, 2001Publication date: January 24, 2002Inventor: Alexandra Brand
-
Patent number: 6335414Abstract: An organopolysiloxane composition comprising (A) an organopolysiloxane, (B) a silane compound having at least two hydrolyzable groups or a partial hydrolyzate thereof, and (C) the addition reaction product between a vinyl group-bearing bisphenol A skeleton compound and an organoxy group-bearing silicon compound is curable at room temperature to a variety of resins including PBT, HIPS and acrylic resins.Type: GrantFiled: March 10, 2000Date of Patent: January 1, 2002Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Takafumi Sakamoto, Mitsuhiro Iwata, Hironao Fujiki
-
Patent number: 6335457Abstract: The invention concerns a complex containing biologically assimilable orthosilicic acid and a process of preparation of said complex. In this complex, orthosilicic acid is complexed with a polypeptide and the complex is under solid, stable and concentrated form. The present invention also concerns cosmetic or therapeutic compositions, and a nutritional supplement containing said complex.Type: GrantFiled: October 12, 2000Date of Patent: January 1, 2002Assignee: Exsymol S.A.M.Inventors: Marie-Christine Seguin, Jean Gueyne
-
Publication number: 20010056194Abstract: The present invention provides a production method of a 5-phthalancarbonitrile compound, which comprises the use of a novel compound of the formula [I] 1Type: ApplicationFiled: July 20, 2001Publication date: December 27, 2001Inventors: Tetsuya Ikemoto, Masami Igi
-
Patent number: 6326520Abstract: The invention relates to a method for producing a novel optically active compound represented by the general formula [IV]. This method includes the step of reacting a vinyl ether with a halogenated acetaldehyde in the presence of an optically active binaphthol-titanium complex. With this, the novel optically active compound can be produced very easily. Furthermore, the novel optically active compound can easily be oxidized to a novel optically active &agr;,&bgr;-dihydrexyketone represented by the general formula [V]. These novel optically active compounds can each be used as useful intermediates.Type: GrantFiled: August 20, 1999Date of Patent: December 4, 2001Assignee: Central Glass Company, LimitedInventors: Akihiro Ishii, Koichi Mikami
-
Patent number: 6306957Abstract: An organopolysiloxane, a hydrolyzable group-bearing methylpolysiloxane, a thermal conductive filler, and a curing agent are blended to form a silicone rubber composition which is minimized in viscosity or plasticity increase and remains effectively moldable and workable even when loaded with a large amount of the thermal conductive filler. It cures into a silicone rubber part having a high thermal conductivity.Type: GrantFiled: March 9, 2000Date of Patent: October 23, 2001Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Akio Nakano, Hiroshi Takei, Takeshi Hashimoto, Yuuki Sakurai
-
Patent number: 6277451Abstract: Materials of formula (I): [G]g(SiO1/2)x are described where G is R3SiR1R2(O)k; R1, R2, R3 are independently a C1-16 alkyl which may be partly or fully halogenated, H and formula (IA), wherein Y is selected from COO, OCO, O, S, CHOH, CHF, CH2; Q=(CH2)n where one or more non-adjacent methylenes may be replaced by O and n=1=20; Z is O, S, a single covalent bond, COO, OCO; when Y is CH2, then n may also be 0; (a) represents any mesogenic group; provided that at least one of R1, R2, R3, is selected from formula (IA): k=0 or 1; g=4 or 6 or 8 or 10 or 12; 1=3 or 8 provided that: if k=1, 1=3 and x is selected form 6, 8, 10, 12 then g=x; if k=0, 1=8 and g=4 then x=1; and further provided that G may have up to g different structures for any single compound.Type: GrantFiled: August 21, 1998Date of Patent: August 21, 2001Assignee: The Secretary of State for Defence in Her Britannic Majesty's Government of the United Kingdom of Great Britain and Northern IrelandInventors: Georg H Mehl, John W Goodby
-
Patent number: 6271408Abstract: This invention relates to trimethylsilyloxy-cyclopentane derivatives: 3-(1-Acetoxy-1-methylethyl)- 2-formyl-1-methyl-1-trimethylsilyloxy-cyclopentane; 4-[5-(1-Hydroxy-1-methylethyl)-2-methyl-2-trimethylsilyloxy-cyclopentyl]-3-buten-2-one; 5-[5-(1-Hydroxy-1-methylethyl)-2-methyl-2-trimethylsilyloxy-cyclopentyl]-3-methyl-penta-1,4-dien-3-ol and alkyl 5-[5-(1-Hydroxy-1-methylethyl)-2-methyl-2-trimethylsilyloxy-cyclopentyl]-3-methyl-penta-2,4-dienoates.Type: GrantFiled: September 13, 2000Date of Patent: August 7, 2001Assignee: Roche Vitamins Inc.Inventors: Hanspeter Pfander, Bruno Traber
-
Patent number: 6271167Abstract: Disclosed are a catalyst for polymerizing olefins containing a solid catalyst component containing titanium, magnesium and halogen as essential components (component (A)); an organic aluminum compound (component (B)); and a silane compound (component (C)) represented by general formula (1) wherein R1 and R2 independently represent a straight, branched or cyclic saturated aliphatic hydrocarbon group or a silyl group, a method of preparing polyolefins using the catalyst as well as novel trimethoxysilane compounds represented by the general formula (1) in which R1 is a straight saturated aliphatic hydrocarbon group having 2 to 10 carbon atoms, and R2 represents a methyl group. Use of the catalyst enables efficient production of polyolefins having a low molecular weight (MFR>20 (g/10 minutes)), a broad molecular weight distribution (MLMFR/MFR>22) and a high stereoregularity when applied to polymerization of olefins having 3 or more carbon atoms.Type: GrantFiled: January 5, 2000Date of Patent: August 7, 2001Assignee: Japan Polyolefins Co., Ltd.Inventors: Masaki Fushimi, Toshio Fujita, Shintaro Inazawa
-
Patent number: 6258972Abstract: To the surface of a semiconductor substrate made of silicon, isopropenoxytrimethylsilane is supplied as a surface treating agent to render the surface of the semiconductor substrate hydrophobic and increase adhesion to the semiconductor substrate. Thus, Si(CH3)3 (trimethylsilyl group) is substituted for the hydrogen atom of an OH group on the surface of the semiconductor substrate, resulting in (CH3)2CO (acetone). Subsequently, a chemically amplified resist is applied to the surface of the semiconductor substrate and exposed to light by using a desired mask, followed sequentially by PEB and development for forming a pattern. Since the surface treating agent does not generate ammonia, there can be formed a pattern in excellent configuration with no insoluble skin layer formed thereon.Type: GrantFiled: August 1, 1996Date of Patent: July 10, 2001Assignees: Matsushita Electric Industrial Co., Ltd., Shin-Etsu Chemical Co., Ltd.Inventors: Satoko Nakaoka, Masayuki Endo, Hiromi Ohsaki, Akiko Katsuyama
-
Patent number: 6258878Abstract: There is disclosed a stable, one-part moisture-curable composition containing: (A) 100 parts by weight of a saturated hydrocarbon polymer having on average more than 2 hydrolyzable silyl groups in its molecule; (B) 10 to 300 parts by weight of a silicon-free conduit compound having at least one C6 to C30 hydrocarbon group in its molecule, said compound being selected from the group consisting of (i) esters, (ii) ethers, (iii) epoxy-containing compounds, (iv) anhydrides and (v) ketones; and (C) a sufficient amount of a silanol condensation catalyst to cure said composition upon exposure to moisture.Type: GrantFiled: March 29, 1999Date of Patent: July 10, 2001Assignee: Dow Corning CorporationInventors: Maneesh Bahadur, Toshio Suzuki, Simon Toth
-
Patent number: 6258971Abstract: A method for the preparation of organooxysilanes containing at least one silicon-carbon bond is provided which comprises reaction of at least one tetraorganooxysilane with at least one metal hydride.Type: GrantFiled: August 17, 2000Date of Patent: July 10, 2001Assignee: General Electric CompanyInventor: Florian Johannes Schattenmann
-
Patent number: 6251989Abstract: An oligomerized polyorganosiloxane cocondensate which may be obtained, in part, by mixing an water-soluble amino-functional organosilane represented with at least one of the followoing: a fluoro-functional organosilane, an organosilane, and an organosilane. The cocondensate may be used, for example, in a method of treating surfaces.Type: GrantFiled: May 26, 1999Date of Patent: June 26, 2001Assignee: Degussa-Huels AktiengesellschaftInventors: Roland Edelmann, Albert-Johannes Frings, Michael Horn, Peter Jenkner, Eckhard Just, Manfred Kaussen, Ralf Laven, Helmut Lohmann, Helmut Mack, Jaroslaw Monkiewicz, Stephan Ramlow, Burkhard Standke, Tilman Taeger
-
Patent number: 6197882Abstract: A curable resin composition contains (A) a curable resin and (B) a ketimine structure-bearing organosilicon compound obtained by reacting an amino-functional alkoxysilane with a monocarbonyl compound, the organosilicon compound having a monomer purity of 50-95% and an amino group blockage of at least 90%. The composition has good shelf stability and tight adhesion and is useful as an adhesive.Type: GrantFiled: July 29, 1999Date of Patent: March 6, 2001Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Hideyoshi Yanagisawa, Masaaki Yamaya
-
Patent number: 6180835Abstract: A cyclopropylacetylene derivative of the formula (V): is prepared by reacting a propynol derivative of the formula (I): with a propane derivative of the formula (VI): in the presence of a base in an amount of 2 or more equivalents relative to the propynol derivative to give a cyclopropane derivative of the formula (III): deprotecting the protecting group for the hydroxyl group of the cyclopropane derivative to give a cyclopropylpropynol derivative of the formula (IV): and subjecting the cyclopropylpropynol derivative to retro-ethynylation. In the above formulas R1, R2, R3, R4 and R5 represent hydrogen; or an alkyl, alkenyl, aryl or aralkyl group, each of which may have a substituent, R6 and R7 is hydrogen; or an alkyl, alkenyl, aryl or aralkyl group, each of which may have a substituent, or R6 and R7 taken together form a ring, R8 is a protecting group for the hydroxyl group and X and Y are each a leaving group.Type: GrantFiled: February 5, 1999Date of Patent: January 30, 2001Assignee: Kuraray Co., Ltd.Inventors: Goro Asanuma, Kazuya Takaki, Shigeo Ohzono, Manzo Shiono
-
Patent number: 6174966Abstract: A coating agent composition, comprising (A) 100 parts by weight of a polymer having at least two alkoxysilyl groups, wherein the polymer has a number average molecular weight of 500 to 500,000, the polymer has a principal chain comprising a polycarbonate or a polyarylate, and the alkoxysilyl groups in the polymer have the formula —SiR3−a(OR′)a, wherein R is a substituted or unsubstituted monovalent hydrocarbon group having 1 to 10 carbon atoms, R′ is a substituted or unsubstituted monovalent hydrocarbon group having 1 to 8 carbon atoms, and a is from 1 to 3; (B) 50 to 2,000 parts by weight of an organic solvent; (C) 1 to 90 parts by weight of an organosilane, wherein the organosilane is a compound having the formula R″eSiY4−e or a partially hydrolyzed condensate thereof, wherein R″ is a substituted or unsubstituted monovalent hydrocarbon group or a hydrogen atom, Y is a hydrolyzable group, and e is from 0 to 2; and (D) a cure catalyst in an amount sufficient to cure tType: GrantFiled: April 28, 1999Date of Patent: January 16, 2001Assignees: Dow Corning Toray Silicone Co., Ltd., Dow Corning CorporationInventors: Hideki Kobayashi, Toru Masatomi
-
Patent number: 6166121Abstract: A curable organopolysiloxane composition that can form a cured product that is strongly adhesive to substrates such as glasses, plastics, and metals and exhibits a very durable adhesion in which adhesiveness is maintained even under severe conditions such as immersion in hot water. The curable organopolysiloxane composition comprises from 1 to 75 weight % of a calcium carbonate powder whose surface has been treated with both (a) a rosin or a rosin derivative and (b) a fatty acid or a fatty acid derivative.Type: GrantFiled: April 23, 1999Date of Patent: December 26, 2000Assignee: Dow Corning Toray Silicone Co., Ltd.Inventors: Wataru Nishiumi, Seiji Hori
-
Patent number: 6162926Abstract: The invention is directed to multiply-substituted fullerene derivatives of novel configurations, and methods for their preparation and use. The methods involve the combinatorial synthesis of a library of fullerene derivatives and comprises the steps of forming a mixture of fullerene derivatives by reacting the C.sub.n fullerene with two or more reactive precursor compounds, and removing the unreacted compounds to yield the fullerene derivatives having the desired activity. Methods for the identification and screening of a combinatorial library of fullerenes by .sup.3 He-nuclear magnetic resonance and electrospray mass spectrometry to define members with the optimal desired activity are also provided.Type: GrantFiled: November 13, 1997Date of Patent: December 19, 2000Assignee: Sphere Biosystems, Inc.Inventors: Randall B. Murphy, Stephen R. Wilson, Quing Lu
-
Patent number: 6153578Abstract: Fragrant silanes having the formula:(R.sup.1 O).sub.a (R.sup.2 O).sub.b (R.sup.3 O).sub.c (R.sup.4).sub.d (R.sup.5).sub.e SiR.sup.6where R.sup.1, R.sup.2 and R.sup.3 are derived from the group of alcohols consisting of R.sup.1 OH, R.sup.2 OH and R.sup.3 OH wherein R.sup.1 OH, R.sup.2 OH and R.sup.3 OH are fragrant alcohols or alternatively R.sup.1, R.sup.2 and R.sup.3 are derived from the group of fragrant esters, ketones, or aldehydes having the structure:R.sup.7 --CH.sub.2 (C.dbd.O)--R.sup.8wherein the fragrant ester, ketone or aldehyde is capable of exhibiting the enol form of the carbonyl moiety under reaction conditions, with R.sup.4 and R.sup.5 selected from the group consisting of monovalent hydrocarbon radical having from one to forty carbon atoms and monovalent alkoxy radicals having from one to forty carbon atoms, R.sup.Type: GrantFiled: August 30, 1999Date of Patent: November 28, 2000Assignee: General Electric CompanyInventor: Robert J. Perry
-
Patent number: 6111149Abstract: Alcohols and/or aldehydes are prepared from olefins by cross-metathesis of olefins with alcohols having at least one double bond in the molecule and in which at least one hydroxyl is in the allyl position relative to a C.dbd.C double bond over catalysts of the formula (I)XX.sup.1 LL.sup.1 Ru [sic].dbd.CR.sup.1 R.sup.2 (I)with optional subsequent hydrogenation and/or isomerization, R.sup.1 and R.sup.2 being hydrogen or C-organic radicals with or without a heteroatom, X [sic] and X.sup.1 [sic] being, independently, anionic ligands, and L [sic] and L.sup.1 [sic] being, independently, neutral electron donor ligands.Type: GrantFiled: January 7, 1999Date of Patent: August 29, 2000Assignee: BASF AktiengesellschaftInventors: Peter Schwab, Arthur Hohn, Rocco Paciello
-
Patent number: 6111125Abstract: A process for preparing 4-hydroxy-1,2,2-trimethylcyclopentyl methyl ketones of the general formula I, in particular of the (1R,4S)-4-hydroxy-1,2,2-trimethylcyclopentyl methyl ketone of the formula Ia ##STR1## which is required for preparing the red dye capsorubin which is in demand, starts from 2,2,6-trimethylcyclohexanones of the general formula II ##STR2## where R is hydrogen or a protective group, via the novel intermediates of the general formulae V and VI ##STR3## by diastereoselective epoxidation and reaction of the resulting 7-oxabicyclo[4.1.0]heptanes of the general formula VIII ##STR4## with Lewis acids and, where appropriate, removal of the protective group. Also claimed are the novel intermediates of the formula V and their (1S) and (1R) isomers and those of the formula VIII as well as their (1R,3S,6S), (1S,3S,6R) and (1R,3R,6S) isomers.Type: GrantFiled: March 3, 1995Date of Patent: August 29, 2000Assignee: BASF AktiengesellschaftInventors: Michael John, Udo Rheude, Joachim Paust, Joachim Meyer
-
Patent number: 6080784Abstract: Compositions with protein kinase C-modulatory, anti-inflammatory and other activities are disclosed.Type: GrantFiled: June 7, 1995Date of Patent: June 27, 2000Assignee: Procyon Pharmaceuticals, Inc.Inventors: Paul E. Driedger, James Quick
-
Patent number: 6046156Abstract: Fragrant silanes having the formula:(R.sup.1 O).sub.a (R.sup.2 O).sub.b (R.sup.3 O).sub.c (R.sup.4).sub.d (R.sup.5).sub.e SiR.sup.6where R.sup.1, R.sup.2 and R.sup.3 are derived from the group of alcohols consisting of R.sup.1 OH, R.sup.2 OH and R.sup.3 OH wherein R.sup.1 OH, R.sup.2 OH and R.sup.3 OH are fragrant alcohols or alternatively R.sup.1, R.sup.2 and R.sup.3 are derived from the group of fragrant esters, ketones, or aldehydes having the structure:R.sup.7 --CH.sub.2 (C.dbd.O)--R.sup.8wherein the fragrant ester, ketone or aldehyde is capable of exhibiting the enol form of the carbonyl moiety under reaction conditions, with R.sup.4 and R.sup.5 selected from the group consisting of monovalent hydrocarbon radical having from one to forty carbon atoms and monovalent alkoxy radicals having from one to forty carbon atoms, R.sup.Type: GrantFiled: August 28, 1998Date of Patent: April 4, 2000Assignee: General Electric CompanyInventor: Robert J. Perry
-
Patent number: 5994489Abstract: A method of hydrolyzing an alkoxysilane which comprises adding sufficient water to hydrolyze at least one alkoxy group, optionally, in the presence of acidic or basic catalysts.Type: GrantFiled: October 24, 1994Date of Patent: November 30, 1999Assignee: The Dow Chemical CompanyInventors: Robert F. Harris, Paul H. Townsend, III
-
Patent number: 5973176Abstract: The invention relates to hydrolyzable fluorinate silanes, methods of their roduction and of their use for producing silicic acid polycondensates and hetero silicic acid polycondensats The silanes in accordance with the invention are of the general formula: {[R'-(Y).sub.e ].sub.c+1 (C.sub.6 F.sub.4-c) (C.sub.6 F.sub.4).sub.d }.sub.f SiR.sub.a X.sub.b (I) in which the groups and indices are identical or different and have the following meaning:R=alkyl, alkenyl, aryl, alkylaryl or arylalkyl, substituted if required, each with 1 to 15 carbon atoms, whereby the groups may be interrupted by oxygen or sulfur atoms, ester, carbonyl, amide or amino groups;R'=I, Br, Cl (if d.noteq.0), F (if d.noteq.0), H (if X.noteq.H or R.noteq.methyl or e=1) or an organic group with 1 to 50 carbon atoms;X=hydrogen, halogen except fluorine, hydroxy, alkoxy, acyloxy, alkylcarbonyl, alkoxycarbonyl or NR".sub.Type: GrantFiled: April 3, 1997Date of Patent: October 26, 1999Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.Inventors: Christof Roscher, Michael Popall, Birke-E. Olsowski
-
Patent number: 5936133Abstract: This invention provides a novel class of vitamin D related compounds, namely, the 2-alkylidene-19-nor-vitamin D derivatives, as well as a general method for their chemical synthesis. The compounds have the formula: ##STR1## where Y.sub.1 and Y.sub.2, which may be the same or different, are each selected from the group consisting of hydrogen and a hydroxy-protecting group, R.sub.6 and R.sub.8, which may be the same or different, are each selected from hydrogen, alkyl, hydroxyalkyl and fluoroalkyl, or when taken together represent the group --(CH.sub.2).sub.x -- where x is an integer from 2 to 5, and where the group R represents any of the typical side chains known for vitamin D type compounds. These 2-substituted compounds are characterized by low intestinal calcium transport activity and high bone calcium mobilization activity resulting in novel therapeutic agents for the treatment of diseases where bone formation is desired, particularly low bone turnover osteoporosis.Type: GrantFiled: September 10, 1998Date of Patent: August 10, 1999Assignee: Wisconsin Alumni Research FoundationInventors: Hector F. Deluca, Rafal R. Sicinski
-
Patent number: 5936132Abstract: A chemiluminescent 1,2-dioxetane derivative having a formula (I): ##STR1## wherein R.sup.1 and R.sup.4 each represent, individually, hydrogen, an alkyl group, an alkoxyl group, a hydroxyl group, or --OS;(R.sup.9 R.sup.10 R.sup.11) in which R.sup.9, R.sup.10 and R.sup.11 each represent an alkyl group; R.sup.2, R.sup.3, R.sup.5 and R.sup.6 each represent, individually, hydrogen or an alkyl group, provided that R.sup.2, R.sup.3, R.sup.5 and R.sup.6 each cannot be hydrogen at the same time, and that R.sup.2 and R.sup.3, and R.sup.5 and R.sup.6, each taken together, can form a cycloalkyl group; R.sup.7 represents an alkyl group; R.sup.8 represents hydrogen, an alkoxyl group, a phosphate salt group, or --OSi(R.sup.9 R.sup.10 R.sup.11); intermediates for synthesizing the above 1,2-dioxetane derivative; and methods of producing the intermediates are provided.Type: GrantFiled: March 11, 1997Date of Patent: August 10, 1999Inventor: Masakatsu Matsumoto
-
Patent number: 5929187Abstract: A novel branched siloxane-silalkylene copolymer containing a plurality of silicon-bonded hydrogen atoms or silicon-bonded alkoxy groups in the molecule. The copolymers are used to improve properties, such as, mechanical strength, adhesiveness, and durability of an end product.Type: GrantFiled: February 23, 1998Date of Patent: July 27, 1999Assignee: Dow Corning Toray Silicone Co., Ltd.Inventor: Makoto Yoshitake
-
Patent number: 5928723Abstract: A process for producing surface modified metal oxide and/or organo-metal oxide compositions comprising esterifying at least a portion of the metal oxide and/or organo-metal oxide composition through contact with at least one esterification agent and at least one catalyst wherein the esterification agent and the catalyst are in the liquid phase. The process may be utilized to produce hydrophobic metal oxide and/or organo-metal oxide compositions at ambient temperature and/or ambient pressure conditions.Type: GrantFiled: April 9, 1997Date of Patent: July 27, 1999Assignee: Cabot CorporationInventors: Kenneth C. Koehlert, Douglas M. Smith, William C. Ackerman, Stephen Wallace, David J. Kaul
-
Patent number: 5922863Abstract: Disclosed are ruthenium and osmium carbene compounds which are stable in the presence of a variety of functional groups and which can be used to catalyze olefin metathesis reactions on unstrained cyclic and acyclic olefins. Specifically, the present invention relates to carbene compounds of the formula ##STR1## wherein: M is Os or Ru; R and R.sup.1 are independently selected from hydrogen and functional groups C.sub.2 -C.sub.20 alkenyl, C.sub.2 -C.sub.20 alkynyl, C.sub.1 -C.sub.20 alkyl, aryl, C.sub.1 -C.sub.20 carboxylate, C.sub.2 -C.sub.20 alkoxy, C.sub.2 -C.sub.20 alkenyloxy, C.sub.2 -C.sub.20 alkynyloxy, aryloxy, C.sub.2 -C.sub.20 alkoxycarbonyl, C.sub.1 -C.sub.20 alkylthio, C.sub.1 -C.sub.20 alkylsulfonyl or C.sub.1 -C.sub.20 alkylsulfinyl; each optionally substituted with C.sub.1 -C.sub.5 alkyl, a halogen, C.sub.1 -C.sub.5 alkoxy or with a phenyl group optionally substituted with a halogen, C.sub.1 -C.sub.5 alkyl or C.sub.1 -C.sub.5 alkoxy; X and X.sup.Type: GrantFiled: October 26, 1995Date of Patent: July 13, 1999Assignee: California Institute of TechnologyInventors: Robert H. Grubbs, SonBinh T. Nguyen, Gregory C. Fu
-
Patent number: 5912378Abstract: A process for producing compounds of the formula (CH.sub.3).sub.3 SiORLi, wherein R is selected from alkyl groups containing 2 to 10 carbon atoms and aryl groups containing 6 to 10 carbon atoms, by reacting, optionally in the presence of a catalyst, in an inert atmosphere, a haloalcohol of the formula HORX, wherein R is selected from alkyl groups containing 2 to 10 carbon atoms and aryl groups containing 6 to 10 carbon atoms and X is selected from chlorine or bromine, is reacted with neat hexamethyldisilazane at a temperature between 20.degree. C. and 200.degree. C., optionally in the presence of a catalyst, after which the resulting product, a trimethylsilyloxyalkylhalide compound, is reacted at a temperature between 50.degree. C. and 160.degree. C., with powdered lithium metal, in an inert hydrocarbon medium, to produce the (CH.sub.3).sub.3 SiORLi compound.Type: GrantFiled: May 5, 1997Date of Patent: June 15, 1999Assignee: FMC CorporationInventor: James A. Schwindeman
-
Patent number: 5885924Abstract: The present invention relates to catalyst supports and improvements thereof for use with supported activators and supported transition metal catalyst systems. The invention specifically involves reacting a carrier containing reactive functionalities, e.g., hydroxyl containing silica, with halogenated organic compounds, e.g., fluorosubstituted phenols. The reaction is preferably carried out in the presence of a base. The reaction consumes undesired functionalities on the support to provide a halogenated support which is suitable for activators and catalytic precursors which are adversely affected by functionalities typically found on supports. The supported activators or catalytic precursors are prepared by contacting the precursors or activators with the halogenated support.Type: GrantFiled: June 7, 1995Date of Patent: March 23, 1999Assignee: W. R. Grace & Co.-Conn.Inventor: David George Ward
-
Patent number: 5856549Abstract: There is provided a novel silane compound, di-sec-butoxy-n-propyl methoxysilane. The aforesaid silane compound is prepared by reacting n-propyl trihalosilane with sec-butanol and then reacting a resultant reaction product with methanol.Type: GrantFiled: May 1, 1998Date of Patent: January 5, 1999Assignee: Tonen CorporationInventors: Takayuki Taki, Masashi Nakajima, Kunihiko Imanishi, Masahide Murata