Compound With Silicon-hydrogen Bond Or Organic Compound With Silicon-carbon Bond Patents (Class 502/158)
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Patent number: 5114899Abstract: This present invention relates to a disproportionation catalyst and a process for preparing a disproportionation catalyst comprising forming a calcined composite comprising at least one of molybdenum and rhenium supported on an inorganic oxide support and contacting the calcined composite with an organosilane compound selected from the group consisting of silanes containing at least one silicon-hydrogen bond per molecule, silanes containing at least one silicon-silicon bond per molecule and mixtures thereof, and to a process for the disporportionation of olefinic hydrocarbons comprising contacting at least one olefinic hydrocarbon with a catalyst comprising at least one of molybdenum and rhenium supported on an inorganic oxide support promoted with an organosilane compound selected from the group consisting of silanes containing at least one silicon-hydrogen bond per molecule, silanes containing at least one silicon-silicon bond per molecule and mixtures thereof.Type: GrantFiled: August 27, 1990Date of Patent: May 19, 1992Assignee: Shell Oil CompanyInventor: Jiang-Jen Lin
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Patent number: 5113022Abstract: This invention relates to novel ionic phosphites and the use thereof as ligands in homogenous transition metal catalyzed processes, especially hydroformylation.Type: GrantFiled: August 8, 1991Date of Patent: May 12, 1992Assignee: Union Carbide Chemicals & Plastics Technology CorporationInventors: Anthony G. Abatjoglou, David R. Bryant
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Patent number: 5104841Abstract: Olefin polymerization catalysts, processes for preparing the catalysts and processes for producing polyolefins utilizing the catalysts are provided. The catalysts are basically comprised of a trialkylsilylamide-chromium complex adsorbed on an activated inorganic refractory compound.Type: GrantFiled: April 22, 1991Date of Patent: April 14, 1992Assignee: Phillips Petroleum CompanyInventors: Brian K. Conroy, Paul D. Smith
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Patent number: 5093513Abstract: A lower alkanol, such as methanol is oxycarbonylated with carbon monoxide and oxygen to yield e.g. dimethyl carbonate at 50.degree. C.-125.degree. C. and 300-1500 psig in the presence of as catalyst, a functionalized inorganic oxide substrate (such as silica gel) typically bearing on the surface thereof a ligand of ethyl formate and 3-aminopropyl triethoxy silane--which has been reacted with a metal salt such as CuCl.sub.2.Type: GrantFiled: January 22, 1988Date of Patent: March 3, 1992Assignee: Texaco Inc.Inventors: Robert A. Sawicki, Harry Chafetz
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Patent number: 5089450Abstract: The process of producing a catalyst for polymerization of organosiloxanes comprises heat-treating a mixture of an aqueous solution of a tetraalkylphosphonium hydroxide, such as tetramethylphosphonium hydroxide, and a cyclic or noncyclic siloxane component, thereby controlling the water content of the system so that the molar ratio of the amount of water in the system to the amount of the quaternary phosphonium hydroxide component in the system will be from 3.0 to 4.0. The process ensures that the crystallization of the tetraalkylphosphonium hydroxide component in the catalyst is obviated effectively.Type: GrantFiled: January 29, 1991Date of Patent: February 18, 1992Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Isao Watanuki, Nobuhiko Kodana, Makoto Sato
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Patent number: 5087359Abstract: Quaternized non-crosslinked polyethyleneimine silica based solid supports are useful strong anion exchangers for column chromatography separation and purification of proteins and have high binding capacity at high pH, the ability to bind basic proteins having high pH isoelectric points and are rapidly equilibrated and are essentially non-titratable.Type: GrantFiled: June 4, 1991Date of Patent: February 11, 1992Assignee: J. T. Baker Inc.Inventors: Sunil V. Kakodkar, Hugh E. Ramsden
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Patent number: 5081091Abstract: A catalyst for addition polymerization comprising(a) an (initiator) first component comprising a plurality of atoms M as hereinafter defined, each in a moiety of formula (I):MX(Y.sub.n)Z.sub.p (I)whereinM is Si, Ge or Snn is 0 or an integer, and p is an integer such that (n+p)=3;X is a diradical ##STR1## bound via Q to M whereQ is N, P, As or P(=T)G.D where T is O or S and G and D are each independently a bond, O or S,R.sup.1 is optionally substituted hydrocarbyl, or, when Q is P, M(Y.sub.n)Z.sub.p as herein defined,R.sup.2 is optionally substituted hydrocarbadiyl, orR.sup.1 and R.sup.2 together are hydrocarbatriyl,all such R.sup.1 and R.sup.2 being inert in the conditions of the process of the present invention; andR.sup.2 being linked directly or indirectly to any group as defined for X, or an organic radical comprising further moieties of formula (I), or one or more M(Y.sub.Type: GrantFiled: June 25, 1990Date of Patent: January 14, 1992Assignee: Imperial Chemical Industries PLCInventors: Denis G. H. Ballard, Anthony Pickering, Peter J. I. Runciman, Rowena J. Sellens, Nicholas J. Walton
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Patent number: 5079206Abstract: A catalyst for addition polymerization comprising:(a) an (initiator) first component of Formula (I):MX(Y.sub.n)Z.sub.p (I)whereinM is Si, Ge or Sn;n is O or an integer, and p is an integer such that (n+p)=3;X is a radical ##STR1## where Q and Q.sup.1 are each independently N, P or As;Q.sup.2 is O, S, NR or PR where R is C.sub.1-4 alkyl;R.sup.1 is H or optionally substituted hydrocarbyl; andR.sup.2 and R.sup.3 are each independently optionally substituted hydrocarbyl, or R.sup.2 and R.sup.3 together are optionally substituted aliphatic hydrocarbadiyl;all such R.sup.1, R.sup.2 and R.sup.3 being inert in the process conditions of the present invention;Y is A or OA where A is optionally substituted hydrocarbyl inert in the process conditions of the present invention, or trialkylsilylalkyl; andZ is independently any group as definedd for Y, or an organic polymer radical comprising further MXY.sub.n moieties; orp is 2 andZ.sub.2 is a group Z.sup.1 .sub.2 of the formula --OSiR.sup.5 R.sup.8 O-- where R.sup.5, R.sup.Type: GrantFiled: June 25, 1990Date of Patent: January 7, 1992Assignee: Imperial Chemical Industries plcInventors: Denis G. H. Ballard, Anthony Pickering, Peter J. I. Runciman, Rowena J. Sellens, Nicholas J. Walton
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Patent number: 5059512Abstract: An ultraviolet light sensitive photoinitiator composition that includes at least one anthracene derivative represented by the formula: ##STR1## wherein X is CH.dbd.CH.sub.2 or --(--CH.sub.2 --)--.sub.n O--(--R) with R being H or ##STR2## wherein each R.sup.I, R.sup.II and R.sup.III individually is selected from the group of alkyl, alkenyl, aryl, ##STR3## wherein each R.sup.IV, R.sup.V and R.sup.VI individually is selected from the group of alkyl, alkenyl and aryl; wherein m is an integer of 0 to 4, p is an integer of 0 to 4; and is n being 1 to 2; and onium salt; and an organic solvent. The composition is used for cationic polymerization of cationic polymerizable materials including in the formation of a pattern of a photoresist. Also certain novel epoxy-functionalized organosilicons are provided that are sensitive to radiation including E-beam radiation and exhibit resistance to oxygen reactive ion etching.Type: GrantFiled: October 10, 1989Date of Patent: October 22, 1991Assignee: International Business Machines CorporationInventors: Edward D. Babich, Jeffrey D. Gelorme, Michael Hatzakis, Jane M. Shaw, Kevin J. Stewart, David F. Witman
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Patent number: 5057476Abstract: A platinum catalyst composition having improved thermal stability, and all of the utilities of platinum catalyst compositions of trhe art, is provided by mixing certain organosiloxanes which contain aryl and alkenyl groups, such as 1,3-divinyl-1,3-diphenyldimethyldisiloxane, in a quantity of at least 2 moles, with a platinum complex having as a ligand an organosiloxane which contains alkyl and alkenyl groups, such as 1,3-divinyltetramethyldisiloxane (or a mixture of said platinum complex and said organosiloxane), in a quantity of 1 mole of platinum atoms. In a preferred embodiment the mixture is distilled in vacuo to remove part or all of the organosiloxane which contains alkyl and alkenyl groups, and most preferably to remove at least a portion of the complexed organosiloxane which contains alkyl and alkenyl groups.Type: GrantFiled: August 22, 1990Date of Patent: October 15, 1991Assignee: Dow Corning Toray Silicone Company, Ltd.Inventors: Toshio Saruyama, Hideko Takeda, Atshushi Togashi
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Patent number: 5055439Abstract: A composition including an initiator which generates acid upon exposure to radiation in the presence of a sensitizer. The composition may be mixed with an acid sensitive polymer or prepolymer to make a visible light or laser imageable photoresist. The sensitizer has phenylethynyl and methoxy substituents which, when properly positioned, allow it to utilize all of the visible argon ion laser lines.Type: GrantFiled: December 27, 1989Date of Patent: October 8, 1991Assignee: International Business Machines CorporationInventors: Robert D. Allen, William D. Hinsberg, III., Logan L. Simpson, Robert J. Twieg, Gregory M. Wallraff, Carlton G. Willson
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Patent number: 5047380Abstract: The present invention relates to ceramic materials containing a homogeneous dispersion of metal particles, particularly sol-gel ceramic materials, a method of preparing the same, and processes for hydrogenating and oxidizing organic compounds using the same.Type: GrantFiled: March 23, 1990Date of Patent: September 10, 1991Assignee: University of South CarolinaInventors: James M. Tour, Shekar L. Pendalwar, Joel P. Cooper
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Patent number: 5045226Abstract: Polyisocyanate preparations containing latent tin catalysts are made from an organic polyisocyanate and a reaction product of a sulfonyl isocyanate and an organic tin catalyst in which at least one tin-oxygen bond is present. The organic tin catalyst preferably contains a tin-alkoxy, tin-siloxy, distannoxane and/or tin-carboxylate group. The reaction product of a sulfonyl isocyanate with a tin-carboxylate must generate carbon dioxide during its formation. The sulfonyl isocyanate and organic tin compound are used in quantities such that at least one isocyanato-sulfonyl group is present for each tin-oxygen bond. These polyisocyanate preparation are storage stable and may be used to produce adhesives, coatings and foams.Type: GrantFiled: July 24, 1990Date of Patent: September 3, 1991Assignee: Bayer AktiengesellschaftInventors: Roland Richter, Hanns P. Muller, Wilhelm Weber, Rudolf Hombach, Bernd Riberi, Ralf Busch, Hans-Gerd Metzinger
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Patent number: 5039642Abstract: The present patent application relates to stable, finely-dispersed, aqueous single-component silicone catalysts which have been obtained by combining a silicone dispersion which is free to essentially free of lower monohydric alcohols and has been prepared in a conventional manner in the presence of long-chain liquid alcohols having 6 to 18 carbon atoms and with the use of known epoxyamine prepolymers as emulsifiers with a separately prepared, conventional nonionic or cationic dispersion of organometallic compounds.In addition, a process for the preparation of this emulsion and the use thereof are described.The catalysts according to the invention are distinguished by not having a flashpoint or having a flashpoint above 65.degree. C. and nevertheless having excellent stability, in particular mechanical stability.Type: GrantFiled: September 29, 1989Date of Patent: August 13, 1991Assignee: Ciba-Geigy CorporationInventors: Harald Chrobaczek, Josef Lechlmair
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Patent number: 5034364Abstract: An olefin, particularly alpha-olefin, polymerization catalyst composition, supported on a refractory oxide support comprises two chromium specie: (1) CrO.sub.3 or any chromium compound calcinable to CrO.sub.3 ; and (2) at least one silylchromate compound. The composition is prepared by sequentially depositing specie (1) and (2) onto the same support.Type: GrantFiled: November 9, 1989Date of Patent: July 23, 1991Assignee: Mobil Oil CorporationInventors: Bohumil V. Kral, Grace O. Tsien, Chisung Wu
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Patent number: 5030606Abstract: Preparation of ethylene copolymers from ethylene and polar and/or non-polar comonomers in the presence of selected nickel-containing catalysts.Type: GrantFiled: November 30, 1989Date of Patent: July 9, 1991Assignee: E. I. Du Pont de Nemours and CompanyInventor: Ulrich Klabunde
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Patent number: 5028575Abstract: A process for chemically removing surface hydroxyl groups present on an aluminum oxide supported rhodium catalyst that is suitable for use as an automotive catalyst in controlling automative exhaust emissions is disclosed. The process includes removing the hydroxyl groups from the aluminum oxide supported catalyst by silation at a temperature preferably equal to or greater than about 450 K so that the conversion of active metallic rhodium Rh.sub.x (0) to oxidized rhodium species Rh.sup.(I) cannot substantially occur by reduction of the active hydroxyl groups. The silation is carried out by exposing the aluminum oxide supported rhodium catalyst to a gas phase alkylhalosilane. Subsequent to the silation, evacuation of the alkylhalosilane treated aluminum oxide supported rhodium catalyst is effected to remove substantially all unreacted alkylhalosilane. An associated catalyst suitable for use in automotive catalytic converter technology for environmental protection is also provided.Type: GrantFiled: April 27, 1990Date of Patent: July 2, 1991Assignee: University of PittsburghInventors: John T. Yates, Jr., Dilip K. Paul, Todd H. Ballinger
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Patent number: 5017540Abstract: The present invention produces very stable, covalently bonded separation substrates for separations application such as liquid and gas chromatography as well as capillary zone electrophoresis. An intermediate substrate is prepared which has hydride species on the substrate surface. These hydrides preferably are further derivatized by the catalytic addition of organic compounds bearing a terminal vinyl group. The final surface modification contains closely packed, direct carbon linkages that are stable.Type: GrantFiled: September 15, 1989Date of Patent: May 21, 1991Inventors: Junior E. Sandoval, Joseph J. Pesek
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Patent number: 4994426Abstract: Disclosed is a process for the polymerization of norbornene derivatives which comprises contacting the monomer(s) with a catalytic system comprising the following two components:(1) a tungsten compound which is the product of combining a tungsten halide with a para-trihalomethylphenol which can be described by the formula ##STR1## in which each R is selected from alkyl and halide, and (2) a compound of the general formula: ##STR2## in which at least two of R.sup.1, R.sup.2 and R.sup.3 are selected from unsubstituted and substituted C.sub.1-20 hydrocarbyl.Type: GrantFiled: September 28, 1989Date of Patent: February 19, 1991Assignee: Shell Oil CompanyInventors: Willem Sjardijn, Wilhelmina J. M. van der Linden-Lemmers
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Patent number: 4988657Abstract: Olefins are polymerized with a catalyst composition which forms on mixing a supported chromium oxide catalyst system and a silane compound. This composition allows the production of one or more comonomers in-situ. The resultant polymer has a lower density, a higher melt index, and a higher high load melt index than polymers produced with a similar catalyst system in the absence of a silane compound.Type: GrantFiled: October 6, 1989Date of Patent: January 29, 1991Assignee: Phillips Petroleum CompanyInventors: Shirley J. Martin, Elizabeth A. Benham, Max P. McDaniel, Bruce W. Gerhold
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Patent number: 4981827Abstract: A catalyst for addition polymerisation comprising(a) an (initiator) first component of formula (I):M(X.sub.m)(Y.sub.n)Zp (I)whereinM is Si, Ge or Snm and p are each an integer and n is 0 or an integer such that (m+n+p)=4;X is QR.sup.1 R2.sup.2 where Q is N, P, As or P(=T)G.D where T is O or S and G and D are each independently a bond, O or S and R.sup.1 and R.sup.2 are each independently optionally substituted hydrocarbyl or together are optionally substituted hydrocarbadiyl which are inert in the process conditions of the present invention, or, when Q is P(=T)G.D as hereinbefore defined, R.sup.1 and R.sup.2 are each independently M(Y.sub.n)Z.sub.p as hereinbefore defined.Y is independently any group as defined for X, or any group selected from a group OA where A is optionally substituted hydrocarbyl inert in the process conditions of the present invention, or trialkylsilylalkyl;Z is independently any group as defined for Y, or an organic polymer radical comprising further M(Y.sub.n)Z.sub.Type: GrantFiled: December 27, 1988Date of Patent: January 1, 1991Assignee: Imperial Chemical Industries PLCInventors: Denis G. H. Ballard, Peter J. I. Runciman, Anthony Pickering
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Patent number: 4962076Abstract: A chelated titanium catalyst can be improved by the addition of an additive selected from the group consisting of organomercaptan of the formula RSH, where R is a hydrocarbon radical containing from 3 to 12 carbon atoms, and mercapto containing silane of the formula HSR'SiX.sub.3, where R' is a divalent hydrocarbon having from 1 to 8 carbon atoms and X is alkoxy radical having 1 to 6 carbon atoms. The improved composition has a reduced tendency to develop color upon storage. The improved composition is particularly useful in a silicone composition comprising a hydroxyl endblocked polydiorganosiloxane and an alkoxysilane or mixture of alkoxysilanes, or in a silicone composition comprising an alkoxy endblocked polydiorganosiloxane.Type: GrantFiled: October 6, 1989Date of Patent: October 9, 1990Assignee: Dow Corning CorporationInventors: Hsien-Kun Chu, Russell P. Kamis, Jerome M. Klosowski, Loren D. Lower
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Patent number: 4959340Abstract: Packing materials for use in liquid chromatographic analysis are prepared by contacting a porous support, such as porous silica, with a ketal silane to form ketal blocked diol groups on the surfaces thereof. An end-capping reagent such as a trimethylsilyl reagent may be added. In addition, the ketal blocked diol groups may be further hydrolyzed to diol groups.Type: GrantFiled: April 10, 1989Date of Patent: September 25, 1990Assignee: Dow Corning CorporationInventor: Dwight E. Williams
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Patent number: 4946818Abstract: A rhodim colloid has been found to be a superior catalyst for the hydrosilylation of silicon hydride having two or three hydrogens attached to silicon. The rhodium colloid is made by effecting reaction between rhodium trichloride and certain silicon hydride.Type: GrantFiled: April 5, 1988Date of Patent: August 7, 1990Assignee: General Electric CompanyInventor: Larry N. Lewis
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Patent number: 4935396Abstract: In the process of producing a linear alternating polymer of carbon monoxide and at least one ethylenically unsaturated hydrocarbon in the presence of a palladium salt, the anion of a strong non-hydrohalogenic acid, and a phosphine ligand, improved polymerization rates are obtained when employing a novel catalyst composition formed from a novel 1,3-bis(phosphino)-2-silapropane, which can be produced with high yield, wherein the 2-silapropane moiety is additionally substituted at the silicon atom with two hydrocarbyl substituents.Type: GrantFiled: June 12, 1989Date of Patent: June 19, 1990Assignee: Shell Oil CompanyInventors: Johannes A. Van Doorn, Johannes J. M. Snel, Nicolaas Meijboom, Richard L. Wife
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Patent number: 4921589Abstract: This invention relates to a photosensitizer which is bound to a polysiloxane polymer, a method of preparing the bound photosensitizer and a process for using the bound photosensitizer. The photosensitizers which may be used in the invention include rose bengal, rhodamine B, acridine orange, methylene blue and zinc phthalocyanine. The photosensitizer is attached to the polysiloxane by reacting a hydroxyl or vinyl group on the photosensitizer with a hydrogen on the polyhydrosiloxane, thereby binding the photosensitizer into the polymer network. Finally, the bound photosensitizer may be used to oxidize undesirable oxidizable compounds present in a hydrocarbon or aqueous fraction. One specific example is the sweetening of kerosene which involves oxidizing the mercaptans contained in the kerosene.Type: GrantFiled: December 20, 1988Date of Patent: May 1, 1990Assignee: Allied-Signal Inc.Inventors: Stephen F. Yates, Mary L. Good, Inara M. Brubaker
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Patent number: 4904632Abstract: A method is provided for modifying a porous chromatographic material such as silica, alumina, thoria, titania or magnesia, which involves the steps of halogenating the surface hydroxyl groups of such material, and reacting the halogenated surface with a suitable alkylation reagent. The method gives a direct surface-to-carbon linkage in a high-yield reaction.Type: GrantFiled: June 19, 1987Date of Patent: February 27, 1990Inventors: Joseph J. Pesek, Sally A. Swedberg
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Patent number: 4900705Abstract: A novel catalyst system useful in preparation of dimethyl carbonate is prepared by complexing a metal salt such as cupric chloride CuCl.sub.2 with a ligand formed by reacting a carbonyl-containing organic compound such as ethyl formate with an organosilicon compound containing alkoxy and amine fucntionality, such as 3-aminopropyltriethoxysilane.Type: GrantFiled: October 19, 1987Date of Patent: February 13, 1990Assignee: Texaco Inc.Inventors: Robert A. Sawicki, Harry Chafetz
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Patent number: 4895817Abstract: Condensation polymers of high molecular weight, such as polyesters, polyureas, and polyamides, are usually prepared at temperatures of 200.degree. C. or greater. However, by utilizing the catalyst system of the present invention condensation polymers can be synthesized at much lower temperatures. These catalyst systems are comprised of (1) a silicon-phosphorus composition which contains at least one divalent oxygen atom which is bonded directly to a tetravalent silicon atom and a trivalent or pentavalent phosphorus atom; and (2) at least one acid acceptor. For example, P(OSiR.sub.3).sub.3 wherein R can be an aliphatic or aromatic hydrocarbon radical, can be used in conjunction with a basic solvent as a catalyst system. Polymeric agents having pendant diphenylphosphine dichloride groups can also be used in conjunction with an acid acceptor as a catalyst system.Type: GrantFiled: June 16, 1988Date of Patent: January 23, 1990Assignee: The Goodyear Tire & Rubber CompanyInventor: Naoya Ogata
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Patent number: 4880900Abstract: In the process of producing a linear alternating polymer of carbon monoxide and at least one ethylenically unsaturated hydrocarbon in the presence of a palladium salt, the anion of a strong non-hydrohalogenic acid, and a phosphine ligand, improved polymerization rates are obtained when employing a novel catalyst composition formed from a novel 1,3-bis(phosphino)-2-silapropane, which can be produced with high yield, wherein the 2-silapropane moiety is additionally substituted at the silicon atom with two hydrocarbyl substituents.Type: GrantFiled: July 22, 1988Date of Patent: November 14, 1989Assignee: Shell Oil CompanyInventors: Johannes A. van Doorn, Johannes J. M. Snel, Nicolaas Meijboom, Richard L. Wife
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Patent number: 4874737Abstract: A process is disclosed for improving the productivity of a polymerization catalyst formed from a magnesium alkoxide which normally undergoes poor metathesis towards production of magnesium chloride. The process comprises treating the magnesium alkoxide with a silane alkoxide at or above the temperature at which the alcohol which is formed dissociates from the alkoxide prior to subjecting the magnesium alkoxide to metathesis.Type: GrantFiled: September 6, 1988Date of Patent: October 17, 1989Assignee: Shell Oil CompanyInventor: Robert C. Job
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Patent number: 4873212Abstract: The invention relates to nitrogen-containing bidentate compound immobilized on a solid carrier having the formula ##STR1## wherein the symbols have specified meanings intermediate thereto and to processes for the preparation.Type: GrantFiled: March 7, 1988Date of Patent: October 10, 1989Assignee: Shell Oil CompanyInventor: Johan Stapersma
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Patent number: 4873333Abstract: The invention relates to nitrogen-containing bidentate compound immobilized on a solid carrier having the formula ##STR1## wherein the symbols have specified meanings intermediate thereto and to processes for the preparation.Type: GrantFiled: March 27, 1989Date of Patent: October 10, 1989Assignee: Shell Oil CompanyInventor: Johan Stapersma
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Patent number: 4859647Abstract: A composition comprising a complex of a Cu(II) salt formed from copper or a copper salt, an organosilicon compound having at least one Si-bonded group which include 2 amino nitrogens which may enter into a heterocyclic ring structure with Cu and 2 to 5 carbon atoms linking the N atoms, and water in the presence of oxygen, is useful as a catalyst for oxidative coupling reactions of certain silicon compounds. Formulations comprising up to 5 parts of the above composition and 100 parts of either arylolsilicon compounds or arylcyanophenylacetylsilicon compounds are particularly claimed.Type: GrantFiled: March 3, 1987Date of Patent: August 22, 1989Assignee: Dow Corning, Ltd.Inventor: Peter O. Bentz
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Patent number: 4847228Abstract: The storage stability of catalyst compositions comprising a platinum-alkenylsiloxane complex, an organopolysiloxane, and a microparticulate hydrophilic silica is substantially increased when the pK.sub.a of a dispersion containing specified amounts of said complex and said silica in a non-polar solvent is at least 2.0. The silica is treated with an alkaline material to achieve said pH.sub.a value.Type: GrantFiled: October 12, 1988Date of Patent: July 11, 1989Assignee: Toray Silicone Co., Ltd.Inventor: Toshio Saruyama
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Patent number: 4843183Abstract: Lower olefinic hydrocarbons are produced from methanol in a high yield and with a high selectivity by bringing methanol into contact with a metallosilicate catalyst of the formula Si/Me wherein atomic ratio of Si/Me is 25-3200 and Me is Fe, Ni or Co at a temperature of 250.degree.-400.degree. C., a space velocity of 2000-8000 hr.sup.-1 and a pressure of atmospheric pressure -50 kg/cm.sup.2.Type: GrantFiled: July 20, 1987Date of Patent: June 27, 1989Assignee: Showa Shell Sekiyu Kabushiki KaishaInventor: Tomoyuki Inui
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Patent number: 4820671Abstract: A proces for regenerating a spent catalyst comprising uranium and a poly-substituted cyclopentadienyl ligand comprising contacting the deactivated catalyst with hydrogen under reaction conditions. The regenerated catalyst is active in the selective dimerization of propylene to 4-methyl-1-pentene.Type: GrantFiled: January 11, 1988Date of Patent: April 11, 1989Assignee: The Dow Chemical CompanyInventors: Thomas A. Chamberlin, James C. Stevens
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Patent number: 4788170Abstract: Catalysts containing tin complexes such as dibutyltin bis(acetylacetonate), useful as curing catalysts for room temperature vulcanizable compositions, are prepared by the reaction of a dialkyltin oxide with a dione and a polyalkoxysilane at a temperature in the range of about 20.degree.-80.degree. C. At least 2 moles of dione and preferably at least 2 moles of polyalkoxysilane are employed per gram-atom of tin. The polyalkoxysilane removes water of reaction, driving the reaction to completion.Type: GrantFiled: July 6, 1987Date of Patent: November 29, 1988Assignee: General Electric CompanyInventor: Jeffrey H. Wengrovius
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Patent number: 4772734Abstract: 1-Butenes are selectively produced via the dimerization of 1-olefins in the presence of novel organotantalum catalysts comprising tantalum and a silyl-substituted cyclopentadienyl moiety having the formula C.sub.5 H.sub.5-x (SiR.sup.6.sub.3).sub.x, wherein each R.sup.6 may be the same or different and is hydrogen, alkyl, cycloalkyl, aryl, aralkyl or alkoxy, and x is an integer from 1 to 5.Type: GrantFiled: July 17, 1987Date of Patent: September 20, 1988Assignee: The Dow Chemical CompanyInventors: Robert A. Dubois, Richard R. Schrock
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Patent number: 4769498Abstract: Transition metal-poly-phosphite complex catalyzed carbonylation processes, especially hydroformylation, as well as transition metal-poly-phosphite ligand complex compositions.Type: GrantFiled: February 9, 1987Date of Patent: September 6, 1988Assignee: Union Carbide CorporationInventors: Ernst Billig, Anthony G. Abatjoglou, David R. Bryant
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Patent number: 4741592Abstract: A hydrogen absorbent composition for protecting optical fibers from damage due to attack by hydrogen, and optical fiber cables and components containing such composition. The composition comprises a mixture of an unsaturated polymer obtained by the polymerization of at least conjugated diene-monomers and of a catalyst selected from the transition metals, the inorganic and organometallic salts of the transition metals, the organometallic acids of the transition metals or mixtures thereof, which catalyst may be supported on an inert carrier.Type: GrantFiled: March 31, 1986Date of Patent: May 3, 1988Assignee: Societa' Cavi Pirelli S.p.A.Inventors: Alessandro Secco, Pietro Anelli, Franco Pasini
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Patent number: 4719194Abstract: Paper release catalyst blends which are self-emulsifiable and form uniquely stable catalyst emulsions are disclosed. The blends, comprising compatible emulsifiers and organo tin catalysts, disperse in aqueous baths without colloidal milling and retain activity in storage longer than conventional catalyst emulsions.Type: GrantFiled: May 21, 1987Date of Patent: January 12, 1988Assignee: General Electric CompanyInventors: Timothy J. Cietek, Frank J. Traver
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Patent number: 4717783Abstract: 1-Butenes are selectively produced via the dimerization of 1-olefins in the presence of novel organotantalum catalysts comprising tantalum and a silyl-substituted cyclopentadienyl moiety having the formula C.sub.5 H.sub.5-x (SiR.sup.6.sub.3).sub.x, wherein each R.sup.6 may be the same or different and is hydrogen, alkyl, cycloalkyl, aryl, aralkyl or alkoxy, and x is an integer from 1 to 5.Type: GrantFiled: March 16, 1987Date of Patent: January 5, 1988Assignee: The Dow Chemical CompanyInventors: Robert A. Dubois, Richard R. Schrock
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Patent number: 4705765Abstract: A colloidal hydrosilylation catalyst is provided by effecting reaction between a silicon hydride or a siloxane hydride and a Pt(O) or Pt(II) catalyst. The colloidal catalyst forms stable mixtures with olefinically unsaturated organopolysiloxanes.Type: GrantFiled: March 2, 1987Date of Patent: November 10, 1987Assignee: General Electric CompanyInventor: Larry N. Lewis
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Patent number: 4689422Abstract: A novel ligand system useful in preparation of dimethyl carbonate is prepared by complexing a metal salt such as cuprous chloride Cu.sub.2 Cl.sub.2 with a ligand formed by reacting a carbonyl-containing compound such as ethyl formate with an organosilicon compound such as ethyl formate with an organosilicon compound containing alkoxy and amine functionality, such as 3-aminopropyltriethoxysilane or [3-(2-aminoethyl)aminopropyl]trimethoxysilane.Type: GrantFiled: December 27, 1985Date of Patent: August 25, 1987Assignee: Texaco Inc.Inventors: Robert A. Sawicki, Harry Chafetz
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Patent number: 4668651Abstract: Transition metal-poly-phosphite complex catalyzed carbonylation processes, especially hydroformylation, as well as transition metal-poly-phosphite ligand complex compositions.Type: GrantFiled: September 5, 1985Date of Patent: May 26, 1987Assignee: Union Carbide CorporationInventors: Ernst Billig, Anthony G. Abatjoglou, David R. Bryant
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Patent number: 4656149Abstract: The present invention relates to a process for the activation of siliceous catalysts selected among zeolites with a high silica content, organosilicates, polymorphous crystalline silicas and zeolites deactivated by treatment with water vapor.According to the invention, the catalyst is activated by reacting aluminum chloride and hydrogen chloride, both in gaseous phase with the catalyst, at a temperature between about 150.degree. and 600.degree. C. in the same reactor, the possible excess of gaseous hydrogen chloride being removed by means of an inert gas, such as nitrogen.Type: GrantFiled: October 29, 1985Date of Patent: April 7, 1987Assignee: Katholieke Universiteit LeuvenInventors: Pierre A. Jacobs, Mia Tielen, Jan B. Uytterhoeven
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Patent number: 4579837Abstract: A solid phase photosensitizer and method of use for photochemical generation of singlet oxygen. The sensitizer comprises one or more layers of an organic polycrystalline dye solid which absorbs radiant energy to release triplet excitons. Where multiple layers are employed, triplet state energies of the layers decrease toward the outer surface. A sub-monomolecular surface layer of organic molecules has a triplet state energy which is less than that of the adjacent dye-solid layer but greater than that of molecular oxygen. The sub-monomolecular layer thus functions to trap exciton energy at the sensitizer surface for reaction with gaseous molecular ground state oxygen directed thereover.Type: GrantFiled: October 22, 1984Date of Patent: April 1, 1986Assignee: KMS Fusion, Inc.Inventors: George E. Busch, Allen J. Twarowski
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Patent number: 4579689Abstract: Processes are described wherein formaldehyde or formic acid and similar materials are oxidized to produce carbon dioxide and water by contact with oxygen in the presence of a noble metal catalyst on a carbon support that is protected from poisonous amines by a polymer coating.Type: GrantFiled: February 11, 1985Date of Patent: April 1, 1986Assignee: Monsanto CompanyInventors: Arnold Hershman, David E. Gross, Robert M. Friedman
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Patent number: 4578220Abstract: A novel charge transfer complex of an N,N'-biscyanoquinone bisimine of the formula ##STR1## and a fulvalene derivative of the formula ##STR2## where, in formula I, R.sup.1, R.sup.2, R.sup.3 and R.sup.4 independently of one another are --H, --CH.sub.3, --C.sub.2 H.sub.5, --OCH.sub.3, --OC.sub.2 H.sub.5, --Cl and/or --Br, and one of the radicals R.sup.1 and R.sup.2 and/or one of the radicals R.sup.3 and R.sup.4 may furthermore be phenyl or tert.-butyl, or R.sup.1 and R.sup.2 and/or R.sup.3 and R.sup.4 together form ##STR3## and the fused-on aromatic ring is unsubstituted or substituted, and, in formula (II), R.sup.5, R.sup.6, R.sup.7 and R.sup.8 independently of one another are each --H, --CH.sub.3, --C.sub.2 H.sub.5, phenyl, methylphenyl or methoxyphenyl, or R.sup.5 and R.sup.6 and/or R.sup.7 and R.sup.8 together form ##STR4## where n=3, 4 or 5, ##STR5## and X and Y indendently of one another are each S or Se.Type: GrantFiled: October 18, 1984Date of Patent: March 25, 1986Assignee: BASF AktiengesellschaftInventors: Siegfried Huenig, Alexander Aumueller