Plural Chalcogens Bonded Directly To The Metal (e.g., Alkyl Titanates, Titanic Esters, Etc.) Patents (Class 556/54)
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Patent number: 5349073Abstract: Isopropoxyalkoxytitanium bis(acetylacetonate) compounds are prepared by admixing diisopropoxytitanium bis(acetylacetonate) with a dialkoxytitanium bis(acetylacetonate), and allowing the mixture to react, optionally at elevated temperatures.Type: GrantFiled: September 14, 1993Date of Patent: September 20, 1994Assignee: Huls AktiengesellschaftInventors: Michael Horn, Hans-Joachim Kotzsch
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Patent number: 5290746Abstract: A tetravalent metal diphosphonate-phosphite composition definable by the following general formula:M(O.sub.3 P--R--PO.sub.3).sub.1-x (HPO.sub.3).sub.2x (I)is described where:M is a tetravalent metal;x varies from 0.5 to 0.66;R is an organic radical of bivalent aromatic type, carrying side groups which increase its steric hindrance.The composition is in the form of a crystalline solid with a type .alpha. layered structure with the diphosphonic groups positioned to join said layers together by a covalent bond (pillared compounds). It has a B.E.T. surface area from 300 to 500 m.sup.2 /g depending on the nature of R in formula (I), and a porosity in the micropore radius range of less than 20 .ANG. (Angstrom), such micropores contributing to the extent of more than 95% of the total area for the most crystalline materials.Type: GrantFiled: December 17, 1991Date of Patent: March 1, 1994Assignee: Eniricerche S.p.A.Inventors: Giulio Alberti, Umberto Costantino, Riccardo Vivani, Piergiorgio Zappelli, Antonio Rossodivita
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Patent number: 5286774Abstract: An aqueous composition suitable for use as a printing ink is provided which comprises an aqueous solution or emulsion of a film-forming polymer containing a titanium compound which is the reaction product of a titanium orthoester, a beta-diketone and a dihydric alcohol.Preferably the composition also contains a pigment or dye and other conventional printing ink additives.The titanium compounds enhance the adhesion and heat resistance properties of the compositions and in contrast to known additives do not lose their efficacy when the ink is stored for more than a few hours.Type: GrantFiled: July 27, 1992Date of Patent: February 15, 1994Assignee: Tioxide Specialties LimitedInventors: Graeme McGibbon, Julie E. Robinson
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Patent number: 5264590Abstract: Ti(III) coordination complexes with ethers are prepared by the steps of (a) forming an ether complex of a Ti(IV) salt by adding a stoichiometric excess of an ether to said salt, and then (b) reducing said complex with an organometallic reducing agent such as an aluminum alkyl or a lithium compound to form a Ti(III)-ether coordination complex.Type: GrantFiled: April 1, 1993Date of Patent: November 23, 1993Assignee: Ethyl CorporationInventor: Jamie R. Strickler
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Patent number: 5221797Abstract: A process for the purification of pseudo-ionone, which comprises preparing pseudo-ionone by a reaction of citral with acetone, followed by bringing the reaction medium into contact with a metal derivative and thereafter distilling the pseudo-ionone.Type: GrantFiled: April 17, 1992Date of Patent: June 22, 1993Assignee: Rhone-Poulenc Nutrition AnimaleInventors: Pierre Chabardes, Noel Crenne
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Patent number: 5169969Abstract: Mixed bimetallic alkoxide-caraboxylate compositions are formed by reaction of at least two metal alkoxides and a carboxylic acid with elimination of distillable ester by-product therefrom. Hydrolysis of said compositions produce bimetallic hydroxy-carboxylates which, upon calcination, give bimetallic oxides.Type: GrantFiled: July 19, 1991Date of Patent: December 8, 1992Assignee: Akzo nvInventor: Fawzy G. Sherif
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Patent number: 5166380Abstract: The present invention discloses a compound comprising a diphosphonate/phosphite of a tetravalent metal:M[(O.sub.3 P--R--PO.sub.3).sub.1-(x+y) (HPO.sub.3).sub.2X (O.sub.3 P--R--PO.sub.3 H.sub.2).sub.2y ](where M, R, x and y have the meaning given in the description), in the form of a crystalline solid with an alpha-type lamellar structure with a distance between layers of 7.4 to 20.ANG. (depending on the dimensions of radical R), a BET surface area of 250 to 400m.sup.2 /g, and porosity within the mesopore range, with at least 50% of the pores measuring 20 to 30.ANG.. The compound, depending on the radical R used, may or may not have microporosity in the region between layers. Such a diphosphonate/phosphite of a tetravalent metal is obtained by reaction between diphosphonic acid, phosphorous acid and an oxyhalide of a tetravalent metal, in a solvent comprising dimethyl-sulphoxide/water containing hydrofluoric acid.Type: GrantFiled: August 1, 1991Date of Patent: November 24, 1992Assignee: Eniricerche S.p.A.Inventors: Giulio Alberti, Umberto Costantino, Riccardo Vivani, Piergiorgio Zappelli, Antonio Rossodivita, Luciano Bassignani
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Patent number: 5134104Abstract: A liquid catalyst component for copolymerization of ethylene with .alpha.-olefin comprising a titanium compound represented by the following general formula:(R.sup.1 R.sup.2 N).sub.4-(m+n) TiX.sub.m Y.sub.nwherein R.sup.1 and R.sup.2 each represents a saturated hydrocarbon group having 8 to 30 carbon atoms; X represents halogen; Y represents an alkoxy group; m represents a number satisfying 1.ltoreq.m.ltoreq.3; n represents a number satisfying 0.ltoreq.n.ltoreq.2; and (m+n) satisfies 1.ltoreq.(m+n).ltoreq.3.Said liquid catalyst component is used in combination with an organoaluminum compound as a catalyst system for copolymerization of ethylene with .alpha.-olefin.Type: GrantFiled: May 28, 1991Date of Patent: July 28, 1992Assignee: Sumitomo Chemical Company, LimitedInventors: Toshio Sasaki, Hirofumi Jyohouji, Yoshihiro Miyoshi, Takeshi Ebara, Kiyoshi Kawai
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Patent number: 5089149Abstract: An organometallic compound which is the reaction product of (a) a zirconium halide or oxyhalide, (b) a polyol and (c) an alpha-hydroxy acid is claimed. The preferred polyol is sorbitol and preferred alphahydroxy acids are citric, malic or lactic acid. The compounds find use as cross-linking agents in fracturing fluids employed in the hydraulic fracturing of oil or gas-containing subterranean strata. The claimed compounds can be used to produce a slow or delayed gel formation in such fluids.Type: GrantFiled: December 1, 1989Date of Patent: February 18, 1992Assignee: Tioxide Group plcInventors: John Ridland, David A. Brown
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Patent number: 5064641Abstract: Polyvalent metal salt of a sulphonated derivative of benzylidenecamphor having the general formula: ##STR1## in which M.sup.n+ denotes a polyvalent metal cation in which n is equal to 2, 3 or 4; andOne of the symbols X.sub.1 or X.sub.2 denotes a hydrogen atom, the other denoting one of the following radicals Y.sub.1 Y.sub.2 : ##STR2## where M.sup.n+ has the same meaning as above. Cosmetic composition screening out UV rays of wavelengths 280-380 nm, containing the compound of formula (I) as well as, optionally, other sunscreens.Type: GrantFiled: November 22, 1989Date of Patent: November 12, 1991Assignee: L'OrealInventors: Gerard Lang, Serge Forestier, Claudine Morie, Alain Lagrange
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Patent number: 5034550Abstract: Mixed heavy bimetallic alkoxide-carboxylate compositions are formed by reaction of a heavy metal tetraalkoxide (e.g., a zirconium alkoxide) and a heavy metal tricarboxylate (e.g., yttrium acetate) with elimination of distillable ester by-product therefrom. Hydrolysis of said compositions produced novel bimetallic hydroxy-carboxylates. Calcination of the hydrolysis products give bimetallic oxides.Type: GrantFiled: June 7, 1990Date of Patent: July 23, 1991Assignee: Akzo N.V.Inventor: Fawzy G. Sherif
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Patent number: 4909846Abstract: Titanium chelate - based compositions are used as additives for liquid or pasty coating agents, especially printing inks; they consist of a mixture of titanium chelates of saturated diols and titanium acylates of saturated monocarboxylic acids.Type: GrantFiled: October 31, 1988Date of Patent: March 20, 1990Assignee: Huels Troisdorf AGInventors: Dieter Barfurth, Heinz Nestler
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Patent number: 4910348Abstract: Polyfluoroenolates, R.sup.1 CX.dbd.CR.sup.2 OM (R.sup.1 is F or a perfluoroalkyl group, R.sup.2 is a perfluoroalkyl group, X is F, Cl or Br), are easily formed at good yields by dehydrohalogenation reaction of polyfluoroalcoholates, R.sup.1 CXY--CR.sup.2 HOM (Y is F, Cl or Br), with a strong base such as, e.g., an alkyl metal or an aryl metal. A typical example of the polyfluoroenolates is lithium pentafluoro-2-propenolate which is obtained from hexafluoro-2-propanolate. A polyfluoroenolate of the above general formula can be converted into another polyfluoroenolate having an alkyl or aryl group in place of the halogen X by reaction with an alkyl or aryl metal.Type: GrantFiled: October 5, 1987Date of Patent: March 20, 1990Assignee: Central Glass Company, LimitedInventors: Takeshi Nakai, Masamichi Maruta
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Patent number: 4891439Abstract: Disclosed are very pure zirconium and hafnium orthoesters and a method for their preparation. In this method the reaction between the halides of these metals and the alcohols is performed in the presence of hydrocarbons or chlorinated hydrocarbons, and the alcohol is not use in excess. The obtained orthoesters are in very pure form and not as addition products with alcohol. They can be isolated as solids.Type: GrantFiled: July 12, 1988Date of Patent: January 2, 1990Assignee: Huels Troisdorf AGInventors: Udo Horns, Hans-Gunther Srebny, Hans-Joachim Yahlensieck
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Patent number: 4885376Abstract: New chiral catalysts for asymmetric synthesis reactions. The catalysts induce chirality in desired fashion in product molecules. The catalysts are rigid quadruped or triped ligands which provide a rigid asymmetric enantio-face at the active catalyst cite, thus inducing preparation of enantiomer molecules.Type: GrantFiled: October 13, 1987Date of Patent: December 5, 1989Assignee: Iowa State University Research Foundation, Inc.Inventor: John G. Verkade
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Patent number: 4851142Abstract: An additive for drilling fluids employed in the deep well drilling industry, which additive comprises an organometal compound of titanium, zirconium or vanadium with humic acid and a further organic moiety which is at least one of fatty acid alkoxylates, fatty alcohol polyalkylene glycol ethers, long-chain amine alkoxylates optionally substituted with a hydroxyl group, or water-insoluble polyalkoxylate all of which are optionally mixed with fatty acids, and fatty acids alone, these having optionally been applied onto an inorganic carrier, mandatorily in the case of fatty acids alone. The fluid loss additive prevents the drilling fluid from streaming into porous drill formations. The additive may be prepared by the reaction of a metal alcoholate with a compound providing the organic moiety and humic acid or a humic acid-containing product.Type: GrantFiled: May 9, 1988Date of Patent: July 25, 1989Assignee: Henkel Kommanditgesellschaft auf AktienInventors: William C. Scoggins, Claus P. Herold, Heinz Mueller
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Patent number: 4824979Abstract: Disclosed is a new method for the preparation of metallic acid esters of titanium, zirconium or hafnium wherein a halide of the metal reacts with an organosilane ester, resulting in the formation of partial esters of the metallic acids. The degree of esterification of the metallic acid ester can be controlled based on the organosilane ester and it is possible to obtain complete esterification of the metal halides. The metallic acid partial esters prepared by the method are very pure, and can be separated selectively from the mixture in a simple manner. The metallic acid alkyl esters obtained can very easily be further esterified to the metallic acid tetraalkyl esters with the formation of very pure tetraalkyl esters.Type: GrantFiled: December 18, 1985Date of Patent: April 25, 1989Assignee: Huels Troisdorf AGInventors: Hans-Joachim Kotzsch, Hans-Gunther Srebny, Hans-Joachim Vahlensieck
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Patent number: 4816522Abstract: Halocarbons are readily bonded to a variety of substrates, including metals, polyolefins, styrenics, polyamides and thermoplastic polyesters, by treating the surface(s) to be bonded with a neoalkoxy zirconate compound. The articles produced by the aforesaid process resist delamination. Applicable fluorinated compounds include fluorinated polymers such as Teflon. The specific zirconate compound preferred is dependent on the particular substrate and the halogenated organic compound to be bonded. Preferred are organo-zirconates having the formula: ##STR1## wherein R, R.sup.1 and R.sup.2 are each monovalent hydrocarbon groups or substantive derivatives thereof; the A groups are independently selected from diester phosphates, diester pyrophosphates, oxyalkylamino, oxyalkylarylamino, or sulfonyl groups; B is an R'.sub.2 C group or a carbonyl group; R' is a hydrogen group or an alkyl group having from 1 to 6 carbon atoms; and n is 1 or 2.Type: GrantFiled: March 24, 1988Date of Patent: March 28, 1989Assignee: Kenrich PetrochemicalsInventors: Gerald Sugerman, Salvatore J. Monte
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Patent number: 4798902Abstract: A water-soluble zirconium chelate formed from a tetraalkyl zirconate and hydroxyethyl-tris-(hydroxypropyl) ethylene diamine, and use of the chelate as cross-linking agents in hydraulic fracturing fluids and in gels that are used for selectively plugging permeable zones in subterranean formations or for plugging subterranean leaks.Type: GrantFiled: February 9, 1987Date of Patent: January 17, 1989Assignee: E. I. Du Pont de Nemours and CompanyInventor: Donald E. Putzig
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Patent number: 4789752Abstract: The present invention relates to the esterification of the halides of titanium, zirconium or hafnium. The esterification takes place in two steps. The first step is performed in the absence of acid acceptors, and the alcohol is introduced into the metal halide dissolved in a solvent, without any appreciable contact with the gas phase. The reactor must be held at the boiling temperature. In this step at least half of the alcohol needed for the entire reaction is used. The second esterification step is performed in a known manner with the addition of acid acceptors after the hydrogen halide that formed in the first esterification step has been removed.Type: GrantFiled: June 25, 1986Date of Patent: December 6, 1988Assignee: Huels Troisdorf AktiengesellschaftInventors: Hans-Joachim Kotzsch, Hans-Gunther Srebny, Hans-Joachim Vahlensieck
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Patent number: 4788172Abstract: New compositions and methods of preparing hydrolyzed titanium chelates are disclosed. New chelates of tetra-isopropyl titanate with alkanolamines in 1/1 mole ratios have high activity as catalysts and exhibit surprising chemical characteristics as reactive intermediates. New partially hydrolized chelates are water soluble, chemically reactive and highly active as esterification catalysts.Type: GrantFiled: July 27, 1987Date of Patent: November 29, 1988Inventor: Donald L. Deardorff
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Patent number: 4717772Abstract: The color of alkyl zirconate compounds that have become discolored is improved by treating the zirconate with a nitrogen oxide oxidant, such as nitric acid, to achieve the desired color improvement.Type: GrantFiled: February 17, 1987Date of Patent: January 5, 1988Assignee: Stauffer Chemical CompanyInventor: Fritzbert Edouard
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Patent number: 4705764Abstract: Esterification and/or ester interchange reaction catalysts composed respectively of a highly-crosslinked polyol polytitanate, a highly-crosslinked high-molecular polytitanate and a polyol polytitanate having the polytitanic acid structure as well as processes for their preparation.Type: GrantFiled: September 26, 1986Date of Patent: November 10, 1987Assignee: Research Development Corporation of JapanInventor: Satoshi Matsumoto
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Patent number: 4704377Abstract: Described are novel bimetallic complexes particularly useful as homogeneous catalysts for the metathesis of alkynes and metathesizable functionally substituted alkynes, and methods for the preparation of such complexes. The complexes are formed from (i) a Group VI-B metal compound having (a) quadruple metal to metal bonds between a pair of Group VI-B metal atoms at least one of which has an atomic number above 24, and (b) four monovalent anions with a k.sub.A greater than 10.sup.-14, and (ii) a Group III-A phenoxide, a Group III-A alkoxide or a Group IV-B metal alkoxide. Displacement of two of the anions appears to occur during formation of the complex. Usually the complexes can be produced very easily and quickly. All that is required is to establish intimate contact between components (i) and (ii), preferably in an innocuous liquid organic solvent. Addition of a small amount of a nitrile gives a faster and cleaner reaction. In some cases use of slightly elevated temperatures is desirable.Type: GrantFiled: May 19, 1986Date of Patent: November 3, 1987Assignee: Ethyl CorporationInventor: Steven P. Diefenbach
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Patent number: 4692254Abstract: Novel aqueous crosslinked gels are described herein which are useful for fracturing subterranean formations. The novel gels are comprised of a solvatable polysaccharide and a soluble zirconium crosslinking agent. The zirconium crosslinking agents are novel and are prepared by reacting a zirconium alkoxide with certain alkanolamines under anhydrous conditions. The zirconium compounds are activated by contact with water. As an example, a zirconium crosslinker was prepared by reacting zirconium tetra(n-propoxide) with triethanolamine in an n-propanol solvent under anhydrous conditions. The zirconium compound thus prepared was activated with water and used to form a stable aqueous crosslinked gel by blending the aqueous crosslinker into an aqueous hydroxypropylguar solution.Type: GrantFiled: March 13, 1986Date of Patent: September 8, 1987Assignee: Dowell Schlumberger IncorporatedInventor: Clare H. Kucera
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Patent number: 4683068Abstract: Novel aqueous crosslinked gels are described herein which are useful for fracturing subterranean formations. The novel gels are comprised of a solvatable polysaccharide and a soluble zirconium crosslinking agent. The zirconium crosslinking agents are novel and are prepared by reacting a zirconium alkoxide with certain alkanolamines under anhydrous conditions. The zirconium compounds are activated by contact with water. As an example, a zirconium crosslinker was prepared by reacting zirconium tetra(n-propoxide) with triethanolamine in an n-propanol solvent under anhydrous conditions. The zirconium compound thus prepared was activated with water and used to form a stable aqueous crosslinked gel by blending the aqueous crosslinker into an aqueous hydroxypropylguar solution.Type: GrantFiled: October 20, 1984Date of Patent: July 28, 1987Assignee: Dowell Schlumberger IncorporatedInventor: Clare H. Kucera
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Patent number: 4681959Abstract: A number of processes for the formation of insoluble metal alkoxides are disclosed. In one embodiment, there is disclosed a two step process wherein a halide of an at least divalent metal is reacted with an appropriate alcohol in the first step. In the second step, the intermediate compound formed is then reacted with more alcohol, said alcohol forming part of a solvent system in which the final metal alkoxide formed is insoluble. In another embodiment, a two step process is disclosed wherein the intermediate formed in the first step is isolated, and then in the second step the intermediate is reacted with an appropriate alcohol to yield the final product. The final embodiment of the present invention comprises a one step process for the production of insoluble metal alkoxides wherein a halide of an at least divalent metal is reacted with an appropriate alcohol in the presence of an excess amount of a hydrogen halide acceptor in a solvent in which the hydrogen halide compound formed is soluble.Type: GrantFiled: April 22, 1985Date of Patent: July 21, 1987Assignee: Stauffer Chemical CompanyInventors: Richard J. Ayen, Johst H. Burk, Carl C. Greco
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Patent number: 4675421Abstract: Compound of the general formula ##STR1## wherein R represents an ether protecting group useful as intermediates.Type: GrantFiled: August 23, 1985Date of Patent: June 23, 1987Assignee: Hoffmann-La Roche Inc.Inventors: Richard Barner, Josef Hubscher
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Patent number: 4650895Abstract: High purity organometallic compounds can be obtained by the process which comprises subjecting an organometallic compound in a liquid state under stirring to preliminary oxidation or hydrolysis in a proportion of about 0.1 to 50% by weight of the organometallic compound to form solid reaction products, and separating by distillation the unreacted organometallic compound from the solid reaction products to recover the purified organometallic compound; and high purity metallic compounds such as a solid metallic hydroxide or oxide can be obtained by the process which comprises following the process as mentioned above, oxidizing or hydrolyzing completely the recovered purified organometallic compound.Type: GrantFiled: January 30, 1984Date of Patent: March 17, 1987Assignee: Sumitomo Chemical Company, LimitedInventors: Hidekimi Kadokura, Hiroshi Umezaki, Yoshihiro Higuchi
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Patent number: 4623738Abstract: A composition of matter comprising neoalkoxy compounds having the following formula: ##STR1## wherein M is titanium or zirconium, R, R.sup.1 and R.sup.2 are each a monovalent alkyl, alkenyl, alkynyl, aralkyl, aryl or alkaryl group having up to twenty carbon atoms or a halogen or ether substituted derivative thereof, and, in addition, R.sup.2 may also be an oxy derivative or an ether substituted oxy derivative of said groups; A, B, and C are each a monovalent aroxy, thioaroxy, diester phosphate, diester pyrophosphate, oxyalkylamino, sulfonyl or carboxyl containing up to 30 carbon atoms; and a+b+c=3.Type: GrantFiled: April 22, 1985Date of Patent: November 18, 1986Assignee: Kenrich Petrochemicals, Inc.Inventors: Gerald Sugerman, Salvatore J. Monte
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Patent number: 4621148Abstract: New titanium chelates containing triethanolamine as chelating agent, plus one or two glycol ether groups bound to the titanium atom are disclosed. Solutions of these new titanium chelates, pure or solved in glycol ether, can be diluted with water such that even 1% aqueous solutions are stable and show no turbidity or precipitation even after several weeks of standing. The new compounds are obtained by the reaction of the known triethanolamine titanates with glycol ethers, followed by distillation of the alcohol that forms, plus the alcohol serving as solvent, if any.Type: GrantFiled: October 9, 1984Date of Patent: November 4, 1986Assignee: Dynamit Nobel AGInventors: Dieter Barfurth, Heinz Nestler
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Patent number: 4609755Abstract: An ester interchange process, preferably for the formation of vinyl higher esters from methyl acrylate or methacrylate, is conducted in the presence of a novel alcoholate of the formula[M.sup.1 (OR.sup.4).sub.2-a R.sub.a.sup.6 ].sub.x [M.sup.2 (OR.sup.4).sub.n-b R.sub.b.sup.6 ].sub.y IwhereinM.sup.1 is selected from Mg, Ca and BaM.sup.2 is selected from Ti, Zr and Aln is 3 or 4 and is the valency of M.sup.2a is a number from 0 to 1.5b is a number from 0 to 0.75nx+Y=1 and each is a number from 0.005 to 0.995 and is such that the compound is liquid at 30.degree.0 C.R.sup.4 is selected from alkyl having at least 4 carbon atoms, cycloalkyl having at least 4 carbon atoms and aminoalkyl, andeach group R.sup.6 is individually selected from C.sub.1-3 alkoxy and blocking groups that are substantially less reactive in the ester interchange reaction than the groups OR.sup.4.Type: GrantFiled: April 15, 1985Date of Patent: September 2, 1986Assignee: Allied Colloids LimitedInventor: David Farrar
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Patent number: 4600789Abstract: A composition of matter comprising neoalkoxy organo-titanates having the following formula: ##STR1## wherein R, R.sup.1 and R.sup.2 are each a monovalent alkyl, alkenyl, alkynyl, aralkyl, aryl or alkaryl group having up to twenty carbon atoms or a halogen or ether substituted derivative thereof, and, in addition, R.sup.2 may also be an oxy derivative or an ether substituted oxy derivative of said groups; A, B, and C are each a monovalent aroxy, thioaroxy, diester phosphate, diester pyrophosphate, oxyalkylamino, sulfonyl or carboxyl containing up to 30 carbon atoms; and a+b+c=3.Type: GrantFiled: May 14, 1984Date of Patent: July 15, 1986Assignee: Kenrich Petrochemicals, Inc.Inventors: Gerald Sugerman, Salvatore J. Monte
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Patent number: 4578487Abstract: The present invention relates to binding agents for coating compositions which can be used for making foundry molds. The new compositions contain known polymeric titanic acid esters which are treated with chelating agents. The preferred chelating agents are beta-dioxo compounds. The chelating agents are contained in the binding agent in amounts between 0.2 and 1 gram molecule per gram atom of titanium. The new binding agents can be prepared in a simple manner from titanic acid esters, water and the chelating agent, the amount of water being selected in accordance with the degree of condensation desired in the polymeric titanic acid ester.Type: GrantFiled: January 26, 1983Date of Patent: March 25, 1986Assignee: Dynamit Nobel AktiengesellschaftInventors: Dieter Barfurth, Heinz Nestler
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Patent number: 4555497Abstract: Novel titanium compounds or complexes are prepared by reacting a titanium compound such as titanium tetraisopropoxide with a mixture comprising (a) at least one compound containing at least one aromatic hydroxyl group and (b) at least one compound having at least one aliphatic hydroxyl group. These compounds and/or complexes are useful as the transition metal component in Ziegler-Natta catalysts.Type: GrantFiled: October 26, 1984Date of Patent: November 26, 1985Assignee: The Dow Chemical CompanyInventors: William M. Coleman, III, Morris S. Edmondson
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Patent number: 4544760Abstract: Reaction products of a difunctional compound and an organotitanate, process for the preparation thereof and the use of these reaction products as crosslinking agents in the preparation of cured products based on alkylene-alkyl acrylate copolymers. The cured products are especially useful as protective coatings about wires and cables.Type: GrantFiled: February 17, 1984Date of Patent: October 1, 1985Assignee: Union Carbide CorporationInventor: Michael J. Keogh
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Patent number: 4529552Abstract: Composite oxyalkoxides and their derivatives are novel organometallic compounds which give alkaline earth metal titanates such as barium titanate or strontium titanate by hydrolysis or thermal decomposition. The oxyalkoxides are synthesized by the reaction between an alkoxytitanium and an alkaline earth metal hydroxide, and their derivatives are synthesized by the reaction between the composite oxyalkoxide and a chelating agent.Type: GrantFiled: January 24, 1983Date of Patent: July 16, 1985Assignee: Nippon Soda Company LimitedInventors: Iwao Kato, Yoshihiko Nakamura, Tetsuo Yoshimoto, Masanori Iwamori, Kazuo Ozawa, Makoto Asai
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Patent number: 4524201Abstract: The disclosure is directed to preformed, reactive catalysts, which are the reaction products of a mixture containing an organo titanate, a polyol and a monohydric alcohol. These catalysts can be admixed with alkylene-alkyl acrylate copolymers to provide compositions which can be extruded about electrical wires and cables and cured, at improved cure rates, to crosslinked products characterized by improved physical properties.Type: GrantFiled: August 2, 1983Date of Patent: June 18, 1985Assignee: Union Carbide CorporationInventors: Austin E. Barnabeo, Michael J. Keogh