Patents Examined by Brent M. Peebles
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Patent number: 5288677Abstract: Immobilized Lewis Acid catalyst comprising polymer having at least one Lewis Acid immobilized within the structure therein, said polymer having monomer units represented by the structural formula: ##STR1## wherein a represents about 1 to about 99 mole % b represents about 0 to about 50 mole %c represents about 1 to about 99 mole %a+b+c is preferably about 100%; ##STR2## C is selected from the group consisting of: ##STR3## D is OH, halide, OR.sup.4, NH.sub.2, NHR.sup.3, OM', or OM"; E is the residue of the reaction of at least one Lewis Acid with the D substituent of monomer unit B;R.sup.1 represents proton, C.sub.1 -C.sub.24 alkyl group, or C.sub.3 -C.sub.24 cycloalkyl;R.sup.2 represents C.sub.1 -C.sub.24 alkyl group, C.sub.3 -C.sub.24 cycloalkyl, C.sub.6 -C.sub.18 aryl, or C.sub.7 -C.sub.30 alkylaryl;R.sup.3 represents C.sub.6 -C.sub.18 alkyl, C.sub.3 -C.sub.24 cycloalkyl, C.sub.6 -C.sub.18 aryl, or C.sub.7 -C.sub.30 alkylaryl;R.sup.4 represents C.sub.6 -C.sub.18 alkyl, C.sub.3 -C.sub.24 cycloalkyl, C.sub.Type: GrantFiled: June 28, 1991Date of Patent: February 22, 1994Assignee: Exxon Chemical Patents Inc.Inventors: Tze-Chiang Chung, Frank J. Chen, Jon E. Stanat, Alok Kumar
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Patent number: 5288682Abstract: Optically active cyanohydrins are prepared by addition of hydrogen cyanide to aldehydes in the presence of catalysts which comprise the dipeptide derivative represented by the formula ##STR1## wherein R.sup.1 represents an isopropyl group, an isobutyl group, a sec-butyl group, a tert-butyl group, a methyl group, a benzyl group or a phenyl group, R.sup.2 represents a benzyl group, an indol-3-ylmethyl group, an isopropyl group, an isobutyl group or a phenyl group, R.sup.3 represents a lower alkoxy group, a hydroxy group or a mono- or di-lower alkylamino group, R.sup.4 represents a hydrogen atom, or R.sup.2 and R.sup.4 are bonded together at their terminals to form a CH.sub.2 CH.sub.2 CH.sub.2 group, R.sup.5, R.sup.6, R.sup.7 and R.sup.8 are the same or different, and each represents a hydrogen atom, a halogen atom, a lower alkyl group or a lower alkoxy group or R.sup.5 and R.sup.6, R.sup.6 and R.sup.7, or R.sup.7 and R.sup.8 are bonded together at their terminals to form CH.dbd.CH--CH.dbd.CH or OCH.sub.Type: GrantFiled: March 12, 1992Date of Patent: February 22, 1994Assignee: Sumitomo Chemical Co., Ltd.Inventors: Atsunori Mori, Shohei Inoue
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Patent number: 5281354Abstract: A liquid cleanser composition, particularly for use as a hard surface cleanser that comprises a mixture of from about 0.5% to about 10% of a terpene selected from mono- and sesquiterpenes and mixtures thereof, from about 1% to about 10% of a water miscible solvent, and, from about 1% to about 10% of an amide surfactant. The composition can also contain from about 10% to about 70% of a water-insoluble abrasive.Type: GrantFiled: October 24, 1991Date of Patent: January 25, 1994Assignee: Amway CorporationInventor: Robert D. Faber
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Patent number: 5281567Abstract: An improved high activity olefin polymerization catalyst catalyzes the production of polymeric lower .alpha.-olefin having good properties and a relatively narrow particle size distribution. The catalyst is produced from an organoaluminum cocatalyst, a selectivity control agent and a novel olefin polymerization procatalyst which is prepared by contacting a tetravalent titanium halide, a halohydrocarbon, an electron donor and the solid procatalyst precursor obtained by heating an adduct of a carbonated magnesium ethoxide and a phenolic compound of enhanced acidity.Type: GrantFiled: June 29, 1992Date of Patent: January 25, 1994Assignee: Shell Oil CompanyInventor: Robert C. Job
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Patent number: 5278120Abstract: 1. A catalyst system comprising1) an alkali metal or tetralkylammonium carboxylate having the formula ##STR1## and 2) a strontium, barium or zinc carboxylate having the formula ##STR2## wherein M represents an alkali metal or tetralkylammonium, Q represents strontium, barium or zinc and R.sub.1, R.sub.2 and R.sub.3 are the same or different and represent H or lower alkyl, cycloalkyl, phenyl or alkylphenyl and wherein the molar ratio of the alkali metal or tetralkylammonium carboxylate to the strontium, barium or zinc carboxylate is 1:1.1-10. The catalyst system is in particular useful for preparing molded objects according to the SRIM process.Type: GrantFiled: September 9, 1991Date of Patent: January 11, 1994Assignee: Imperial Chemical Industries PLCInventors: Berend Eling, Dominique M. Nachtergaele
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Patent number: 5278121Abstract: The present invention relates to novel catalysts for removing heteroatoms, particularly nitrogen, from hydrocarbonaceous feedstocks. The catalysts are comprised of highly dispersed molybdenum sulfide promoted with a noble metal such that the noble metal is in an oxidation state greater than 0 and coordinated to S. The noble metal is selected from Pt, Pd, Rh, and Ir. It is preferred that the catalysts of be prepared from a precursor composition selected from platinum ethoxyethyl xanthate or platinum dithiocarbamate. Additionally, the catalyst may include a promotor sulfide such as nickel sulfide, cobalt sulfide or iron sulfide, etc. or mixtures thereof.Type: GrantFiled: March 31, 1992Date of Patent: January 11, 1994Assignee: Exxon Research & Engineering CompanyInventors: Gopal H. Singhal, Leo D. Brown, X. B. Cox, III, Thomas R. Halbert
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Patent number: 5276234Abstract: The invention provides a process for producing 2-methylnaphthalene by isomerization of 1-methylnaphthalene in which a Y zeolite having a unit cell constant of less than or equal to 24.37 .ANG. (10.sup.-10 m) is used as an isomerization catalyst.Since the isomerization is effected by the use of the inventive heterogeneous solid catalyst which has a long catalyst life, 2-methylnaphthalene is produced from 1-methylnaphthalene efficiently with less cost and handling steps for regeneration or exchange of the catalyst.Type: GrantFiled: September 10, 1991Date of Patent: January 4, 1994Assignee: Kawasaki Steel CorporationInventors: Tatsuya Nobusawa, Toshihide Suzuki, Akinori Matsuura
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Patent number: 5270274Abstract: A catalyst composition comprising: (a) a bis(cyclopentadienyl) transition metal compound, (b) at least one polarized compound selected from the group consisting of carbonyl group-containing compounds and epoxy group containing compounds, and (c) an organic lithium compound. It has a high hydrogenation activity and is useful for hydrogenating olefinically unsaturated polymers for providing the olefinically unsaturated polymers with excellent characteristics as superior weatherability, good heat resistance, superb oxidation resistance, and the like.Type: GrantFiled: November 25, 1992Date of Patent: December 14, 1993Assignee: Japan Synthetic Rubber Co., Ltd.Inventors: Yoshiharu Hashiguchi, Takashi Ishida, Hiroyuki Sasanuma, Yasuhiko Takemura
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Patent number: 5270275Abstract: A solid component of catalyst for the (co)polymerization of ethylene, including magnesium, halogen and titanium, is prepared:(i) by dissolving a magnesium dialkyl, a silicon halide and at times also an alkyl halide, in an inert organic solvent and maintaining contact until a granular solid precipitates;(ii) putting this granular solid in contact and making it react with a titanium halide, alkoxide or halogen-alkoxide, to produce a solid component of catalyst; and(iii) activating this solid component of catalyst by contact with aluminium alkyl halide, if a titanium alkoxide or halogen-alkoxide has been used in phase (ii).Type: GrantFiled: October 9, 1991Date of Patent: December 14, 1993Assignee: Ecp Enichem Polimeri S.R.L.Inventors: Luciano Luciani, Federico Milani, Maddalena Pondrelli, Italo Borghi, Renzo Invernizzi
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Patent number: 5266545Abstract: A catalyst composition useful in the preparation of a polymer composition includes a Group VIII metal and a phosphorus bidentate ligand of the general formula (R.sub.2)(R.sub.4)P--R.sub.3 --P(R.sub.2)(R.sub.4) wherein R.sub.2 and R.sub.4 are optionally polar substituted alkyl groups, differing from each other in carbon number, and wherein R.sub.3 is a divalent organic bridging group which contains four atoms. Such catalyst compositions are particularly useful for preparing copolymers of carbon monoxide with .alpha.-olefins having at least three carbon atoms.Type: GrantFiled: January 21, 1993Date of Patent: November 30, 1993Assignee: Shell Oil CompanyInventors: Peter A. A. Klusener, Johannes J. M. Snel
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Patent number: 5260246Abstract: A catalyst composition for the polymerization of Nylon 6 from caprolactam comprising a primary catalyst which comprises an alkali metal hypophosphite or an alkaliearth metal hypophosphite, and an amine cocatalyst. The amine cocatalyst can be selected from the group consisting of phenylene diamines, hindered amines, poly(hindered amines), Group I benzotriazoles, and Group I benzotriazoles. The catalyst composition of this invention is most useful when used in conjunction with the reactive extrusion technology which requires a very fast polymerization rate to take full advantage of this evolving technology.Type: GrantFiled: September 18, 1992Date of Patent: November 9, 1993Assignee: Industrial Technology Research InstituteInventors: Wu-Bin Yuo, Mao-Song Lee, Jeng-Yue Wu
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Patent number: 5250486Abstract: The invention provides a process for producing a polyphenylene ether by subjecting a 2,6-disubstituted phenol to oxidative coupling by introducing oxygen in the presence of a catalyst system which comprises a manganese compound, a chelant, a base, and an alpha,beta-unsaturated ketone, a beta-diketone, or a vinyl ether. The polyphenylene oxide produced has substantially no amine odor and more stable molecular weight, and is suitable for blending with styrenic or other resins to make thermoplastic resin blends of low odor and good physical properties.Type: GrantFiled: May 13, 1991Date of Patent: October 5, 1993Assignee: General Electric CompanyInventor: Timothy D. Shaffer
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Patent number: 5244856Abstract: A method for the removal and concentration of desired ions from a source solution which may contain larger concentrations of other ions including H.sup.+ comprises bringing the source solution into contact with a compound comprising a polytetraalkylammonium and/or polytrialkylamine-containing ligand covalently bonded through an organic spacer silicon grouping to a solid inorganic support. The polytetraalkylammonium and/or polytrialkylamine portion(s) of the compound has an affinity for the desired ions to form a complex thereby removing the desired ions from the source solution. The desired ions are removed from the compound by contacting the compound with a much smaller volume of a receiving solution having a greater affinity for the desired ions than does the polytetraalkylammonium and/or polytrialkylamine ligand portion of the compound. The concentrated ions thus removed may be recovered by known methods.Type: GrantFiled: February 12, 1992Date of Patent: September 14, 1993Assignee: Brigham Young UniversityInventors: Ronald L. Bruening, Bryon J. Tarbet, Jerald S. Bradshaw, Reed M. Izatt
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Patent number: 5244857Abstract: Compounds of formula II ##STR1## wherein the groups (R.sub.1).sub.2 P(CH.sub.2).sub.m and n are in o- or m-position to each other and the substituents R.sub.1 are identical or different radicals, m and n are each independently of the other 0 or 1, R.sub.1 is linear or branched C.sub.1 -C.sub.12 alkyl, unsubstituted C.sub.5 -C.sub.6 cycloalkyl or C.sub.5 -C.sub.6 cycloalkyl which is substituted by C.sub.1 -C.sub.4 alkyl or C.sub.1 -C.sub.4 alkoxy, or is phenyl or benzyl, or both substituents R.sub.1 in a group (R.sub.1).sub.2 P together are o,o'-diphenylene, --R.sub.2 --X-- is a bond or --(C.sub.x H.sub.2x --O).sub.y --, or X-- is O-- and R.sub.2 is C.sub.1 -C.sub.6 alkylene, x is an integer from 2 to 6 and y is an integer from 2 to 6, R.sub.3 is C.sub.2 -C.sub.18 alkylene, phenylene or benzylene, and R.sub.4 is C.sub.1 -C.sub.6 alkyl or phenyl, can be applied to solid carriers, such as silica gel or aerosils, and complexed with rhodium or iridium compounds.Type: GrantFiled: January 21, 1992Date of Patent: September 14, 1993Assignee: Ciba-Geigy CorporationInventors: Benoit Pugin, Manfred Muller, Felix Spindler
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Patent number: 5242878Abstract: Polyketones can be formed from carbon monoxide and at least one olefin by using, as a catalytic complex, a catalyst which comprises a Group VIII metal, an anion of an acid having a pK.sub.a of less than about four, and a tin tetradentate phosphine ligand, preferably of the formula Sn(RPR'.sub.2).sub.4 where R is methylene and R' is phenyl.Type: GrantFiled: April 8, 1992Date of Patent: September 7, 1993Assignee: Akzo N.V.Inventor: David L. Kershner
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Patent number: 5238896Abstract: A composition is prepared by mixing at least one aluminum halide (preferably AlCl.sub.3), at least one copper(II) salt (preferably CuCl.sub.2), calcium aluminate and at least one alcohol (preferably ethanol), shaping the mixture, and drying the shaped particles. The thus-obtained catalyst composition can be employed as a catalyst in the isomerization of alkanes and/or cycloalkanes.Type: GrantFiled: December 16, 1992Date of Patent: August 24, 1993Assignee: Phillips Petroleum CompanyInventor: Gyanesh P. Khare
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Patent number: 5238895Abstract: A catalyst system for the liquid-phase production of methanol from synthesis gas is described, consisting of:one or more copper compounds;one or more alkoxides of the lanthanum group of formula (R.sub.1 O).sub.x Ln and/or one or more inorganic oxides of the lanthanum and/or aluminum group;one or more alkaline and/or alkaline-earth alkoxides of formula (R.sub.a O).sub.x M,if at least one alkoxide of the lanthanum group is present, then one or more alkoxides of the titanium group of formula (R.sub.t O).sub.x T,where R.sub.1, R.sub.a and R.sub.t, which can be the same or different, are C.sub.1 -C.sub.10 alkyl groups,M is the alkaline or alkaline-earth metal,Ln is an element of the lanthanum group,T is an element of the titanium group,x is equal to the valency of the metal or element.Type: GrantFiled: March 16, 1992Date of Patent: August 24, 1993Assignee: Eniricerche S.p.A. and Snamprogetti S.p.A.Inventors: Mario Marchionna, Massimo Lami
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Patent number: 5234879Abstract: When asymmetric olefins or a monomer mixture containing asymmetric monomers is polymerized by a catalyst composition containing esters of carboxylic acid e.g. as a so-called donor, and alcohol the ester group can be transesterified with the alcohol to an ester containing another alkyl group during the preparation and/or polymerization of the catalyst. This is advantageous particularly when an adduct of a so-called spray-crystallized Mg-halide and alcohol is used as the catalyst carrier, because the alkoxy group of the alcohol of the carrier and the alkoxy group of the ester of the donor can be transesterified and thus obtain the preferable effects of both esters on the run of the polymerization reaction. Hereby, a solvent having a high boiling point should be used as the intermediate agent, so that the transesterification reaction can take place. Most preferable have been found hydrocarbons having high boiling points, especially nonane and decane.Type: GrantFiled: November 30, 1992Date of Patent: August 10, 1993Assignee: Neste OYInventors: Thomas Garoff, Timo Leinonen, Eero Iiskola
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Patent number: 5234584Abstract: A catalyst for oxidizing aqueous organic contaminants includes about 5 wt % to about 20 wt % noble metal crystallites selected from the group consisting of platinum, palladium, ruthenium, iridium, and combinations thereof deposited on a high surface area catalyst support. The crystallites are about 100 .ANG. or smaller. A system for catalytically oxidizing aqueous organic contaminants has a catalyst bed containing such a catalyst, means for heating a reactor feed stream to a desired reaction temperature, means oxygenating the feed stream, and a phase separator for separating gaseous reaction products from a reactor effluent stream.Type: GrantFiled: February 4, 1991Date of Patent: August 10, 1993Assignee: United Technologies CorporationInventors: Philip J. Birbara, Joseph E. Genovese
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Patent number: 5232888Abstract: Disclosed is a method of preparing a catalyst for hydrogenation of a hydrocarbon oil, in which a hydroxycarboxylic acid is added to a catalyst carrying a metal of the Group VI of the Periodic Table and a metal of the Group VIII of the same, optionally along with phosphoric acid, on a carrier, in an amount of from 0.3 to 5 molar times of the total metal molar number of the metal of the Group VI and the metal of Group VIII, and thereafter the resulting catalyst is dried at a temperature not higher than 200.degree. C. The catalyst has a high catalyst activity and is used for hydrogenation of a hydrocarbon oil, especially satisfying the requirement of reducing the sulfur content in a light oil.Type: GrantFiled: October 10, 1991Date of Patent: August 3, 1993Assignee: Sumitomo Metal Mining Co., Ltd.Inventor: Tetsuro Kamo