Patents by Inventor Sandor Nagy
Sandor Nagy has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 6008394Abstract: A novel metallocene catalyst for the polymerization of olefin (co)polymers is of the general formula:R--SO.sub.2 --L--M--(X).sub.m T.sub.nwherein,M is a metal selected from Groups 3-10;T is a polymerization-stable anionic ancillary ligand;m+n is the valency of M minus 1;R is a C.sub.1 -C.sub.20 alkyl group, a C.sub.6 -C.sub.20 aryl ring or a C.sub.6 -C.sub.20 alkaryl or aralkyl group, optionally substituted with a halogen or an alkoxy group up to 10 carbon atoms;X is a halogen, alkoxy from C.sub.1 to C.sub.20, siloxy from C.sub.1 to C.sub.20, N(R).sub.2, a hydrocarbyl group containing up to about 12 carbon atoms, hydrogen or another univalent anionic ligand, or mixtures thereof;L is T as defined above with the proviso that one of the sites available for substitution is the attachment site of the sulfonyl group; andwherein L and T may be bridged.Type: GrantFiled: August 7, 1998Date of Patent: December 28, 1999Assignee: ARCO Chemicals Technology, L.P.Inventors: Sandor Nagy, John Tyrell, Bradley P. Etherton
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Patent number: 5914408Abstract: A novel metallocene catalyst for the polymerization of olefin (co)polymers is of the general formula:Benzothiazole--E--M--X.sub.m L.sub.nwhere,M is a transition metal of Groups 3-10 of the Periodic Table;E is sulfur or oxygen; E being bond to the transition metal and to the carbon atom between sulfur and nitrogen of the benzothiazole moiety;L is a polymerization-stable anionic ancillary ligand;X is a halogen, alkoxy from C.sub.1 to C.sub.20, siloxy from C.sub.1 to C.sub.20, N(R.sub.1).sub.2, a hydrocarbyl group containing up to about 12 carbon atoms or hydrogen or mixtures thereof; preferably X is halogen, methoxy, ethoxy or siloxy (R.sub.1).sub.3 SiO--, where R.sub.1 is alkyl from C.sub.1 to C.sub.20 ; andm+n equals the valency of the M minus 1.Type: GrantFiled: August 7, 1998Date of Patent: June 22, 1999Assignee: Equistar Chemicals, LPInventors: Ramesh Krishnamurti, Sandor Nagy, John Tyrell, Bradley P. Etherton
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Patent number: 5902866Abstract: Disclosed is a catalyst having the general formula ##STR1## where L is a ligand having the formula ##STR2## L' is L, Cp, Cp*, indenyle fluorenyl, NR.sub.2, OR, or halogen, L can be bridged to L; X is halogen, NR.sub.2, OR, or alkyl from C.sub.1 to C.sub.12, M is zirconium or hafnium, R is alkyl from C.sub.1 to C.sub.12 or aryl from C.sub.6 to C.sub.12, R.sub.1 is R, alkaryl from C.sub.6 to C.sub.12, aralkyl from C.sub.6 to C.sub.12, hydrogen, or Si(R).sub.3, R.sub.2 is R.sub.1, halogen, COR, COOR, SOR, or SOOR, R.sub.3 is R.sub.2, OR, N(R).sub.2, SR, or a fused ring system, Cp is cyclopentadienyl, Cp* is pentamethylcyclopentadienyl, n is 0 to 3, and L.sub.B is an optional Lewis base. Also disclosed is a method of making a poly-.alpha.-olefin comprising polymerizing an .alpha.-olefin monomer using a catalyst such as that described above where M can be titanium, zirconium, or hafnium.Type: GrantFiled: November 13, 1996Date of Patent: May 11, 1999Assignee: Equistar Chemicals, L.P.Inventors: Sandor Nagy, Ramesh Krishnamurti, Bradley P. Etherton
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Patent number: 5817835Abstract: Novel benzothioxepanone and benzothioxepane thione compounds are characterized by the formula ##STR1## wherein Z is: ##STR2## R is Cl, Br, F, C.sub.1 to C.sub.8 alkyl, or C.sub.1 to C.sub.8 alkoxy; X and Y are each hydrogen, or taken together form a fused cyclopentyl or cyclohexyl ring, with the proviso that when Z is ?1!, X and Y represent a fused cyclopentyl or cyclohexyl ring; and n is 0, 1, or 2. The compounds are useful as co-catalysts in the para-directed nuclear chlorination of toluene.Type: GrantFiled: October 22, 1997Date of Patent: October 6, 1998Assignee: Occidental Chemical CorporationInventors: Ramesh Krishnamurti, Sandor Nagy, Thomas F. Smolka
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Patent number: 5756611Abstract: A catalyst useful in the polymerization of .alpha.-olefins comprises the reaction product of an alcohol having the general formula ##STR1## with an organometallic compound having the general formulaLM(X).sub.v-1wherein Q is --COR.sup.12, --CR"R"(OR.sup.12) and --CR"R"N(R").sub.2 ;wherein each R" is independently selected from H and R, R is a C.sub.1 to C.sub.12 alkyl group or a C.sub.6 to C.sub.24 aryl group, R.sup.12 is R or a radical of the formula --(CH.sub.2).sub.w --O--(CH.sub.2).sub.y H, w and y being independently selected from 1 to 4;L is a .pi.-bonded ligand selected from (i.) a cyclopentadienyl or substituted cyclopentadienyl ring; (ii.) a boraaryl ring; (iii) a 1,2-azaborolinyl ring; or (iv.) a 5-membered heterocyclic ring;M is a Group 3 to 7 metal of the Periodic Table;v is the valence of M; andeach X is independently selected from halogen or a C.sub.1 -C.sub.6 alkyl group or a C.sub.6 -C.sub.24 aryl group.Type: GrantFiled: February 21, 1997Date of Patent: May 26, 1998Assignee: Lyondell Petrochemical CompanyInventors: Bradley P. Etherton, Ramesh Krishnamurti, John A. Tyrell, Sandor Nagy
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Patent number: 5747404Abstract: Disclosed is a catalyst having the formula ##STR1## where each R is independently selected from aliphatic from C.sub.1 to C.sub.6 and aromatic from C.sub.6 to C.sub.10, each R.sub.5 is independently selected from H, R, and L', each L' is independently selected from LM'L.sub.r X.sub.3-r or two L' groups form the bridge --LM'X.sub.2-r L.sub.r --, each L is independently selected from cyclopentadienyl, indenyl, and fluorenyl, X is chlorine or bromine, M' is zirconium, titanium, or hafnium, n is 5 to 500, the ratio of R to H+L in R.sub.5 is 0 to 100, the ratio of H to L' in R.sub.5 is 0 to 4, and r is 0 or 1.Type: GrantFiled: May 28, 1996Date of Patent: May 5, 1998Assignee: Lyondell Petrochemical CompanyInventors: Sandor Nagy, John A. Tyrell
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Patent number: 5744417Abstract: Disclosed is a supported catalyst which is the reaction product of(a) a silylamine polymer having the general formula ##STR1## where each R is independently selected from alkyl from C.sub.1 to C.sub.6 or aryl from C.sub.6 to C.sub.10, R.sub.1 is a divalent aliphatic or aromatic group from C.sub.2 to C.sub.20, "m" is 1 to about 100, and "n" is 2 to about 500, with(b) an organometallic compound having the general formulaQ--M--(X).sub.3where Q is a stabilizing ligand, each X is independently selected from halogen, alkyl from C.sub.1 to C.sub.6, or dialkylamino from C.sub.1 to C.sub.6, M is zirconium, titanium, or hafnium and M is bonded to a nitrogen in said silylamine polymer, and the ratio nitrogens bondable to M in said silylamine polymer to M atoms is 1:1 to 3:1.Type: GrantFiled: May 2, 1996Date of Patent: April 28, 1998Assignee: Lyondell Petrochemical CompanyInventors: Sandor Nagy, John A. Tyrell
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Patent number: 5714603Abstract: A process for the pare-directed nuclear chlorination of an alkylbenzene, such as toluene, comprises reacting the alkylbenzene with chlorine in the presence of a Lewis acid catalyst and a novel co-catalyst of the formula: ##STR1## where Z is ##STR2## and R is Cl, Br, F, C.sub.1 to C.sub.8 alkyl to C.sub.1 to C.sub.8 alkoxy; x and y are each hydrogen, or taken together form a fused cyclopentyl or cyclohexyl ring; n is 0, 1 or 2, with the proviso that when Z is ?3!, n is 0 or 1.Type: GrantFiled: December 2, 1996Date of Patent: February 3, 1998Assignee: Occidental Chemical CorporationInventors: Ramesh Krishnamurti, Sandor Nagy, Thomas F. Smolka
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Patent number: 5637659Abstract: Disclosed is a catalyst having the general formula ##STR1## where Q is a ligand containing the ring ##STR2## R is hydrogen, N(R').sub.2, OR', or R', each R' is independently selected from alkyl from C.sub.1 to C.sub.10, aryl from C.sub.6 to C.sub.15, alkaryl C.sub.7 to C.sub.15, and aralkyl from C.sub.7 to C.sub.15, each X is independently selected from hydrogen, halogen, alkoxy from C.sub.1 to C.sub.10.sub., dialkylamino from C.sub.1 to C.sub.10, methyl, ##STR3## each R.sub.1 is independently selected from halogen, alkoxy from C.sub.1 to C.sub.10, and R', L is ##STR4## Q, or X, where L can be bridged to Q, B is an optional base, "n" is 0 to 5, and M is titanium, zirconium, or hafnium.Type: GrantFiled: May 17, 1996Date of Patent: June 10, 1997Assignee: Lyondell Petrochemical CompanyInventors: Ramesh Krishnamurti, Sandor Nagy, Bradley P. Etherton
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Patent number: 5637660Abstract: Disclosed is a novel bidentate pyridine transition metal catalyst having the general formula ##STR1## where Y is O, S, NR, ##STR2## each R is independently selected from hydrogen or C.sub.1 to C.sub.6 alkyl, each R' is independently selected from C.sub.1 to C.sub.6 alkyl, C.sub.1 to C.sub.6 alkoxy, C.sub.6 to C.sub.16 aryl, halogen, or CF.sub.3, M is titanium, zirconium, or hafnium, each X is independently selected from halogen, C.sub.1 to C.sub.6 alkyl, C.sub.1 to C.sub.6 alkoxy, or ##STR3## L is X, cyclopentadienyl, C.sub.1 to C.sub.6 alkyl substituted cyclopentadienyl, indenyl, fluorenyl, or ##STR4## and "n" is 1 to 4. Also disclosed is a method of making a poly-.alpha.-olefin comprising polymerizing an .alpha.-olefin monomer using that catalyst or a catalyst that has the general formula ##STR5## where Y, M, L, X, and R' were previously defined.Type: GrantFiled: April 17, 1995Date of Patent: June 10, 1997Assignee: Lyondell Petrochemical CompanyInventors: Sandor Nagy, Ramesh Krishnamurti, John A. Tyrell, Leonard V. Cribbs, Mary Cocoman
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Patent number: 5621153Abstract: A process for the para-directed nuclear chlorination of an alkylbenzene, such as toluene, comprises reacting the alkylbenzene with chlorine in the presence of a Lewis acid catalyst and a novel co-catalyst of the formula: ##STR1## where Z is ##STR2## ; and R is Cl, Br, F, C.sub.1 to C.sub.8 alkyl to C.sub.1 to C.sub.8 alkoxy; x and y are each hydrogen, or taken together form a fused cyclopentyl or cyclohexyl ring; n is 0, 1 or 2, with the proviso that when Z is [3], n is 0 or 1.Type: GrantFiled: April 21, 1995Date of Patent: April 15, 1997Assignee: Occidental Chemical CorporationInventors: Ramesh Krishnamurti, Sandor Nagy, Thomas F. Smolka
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Patent number: 5554775Abstract: Disclosed is a catalyst having the general formula ##STR1## where Q is a ligand containing the ring ##STR2## R is hydrogen, N(R').sub.2, OR', or R', each R' is independently selected from alkyl from C.sub.1 to C.sub.10, aryl from C.sub.6 to C.sub.15, alkaryl C.sub.7 to C.sub.15, and aralkyl from C.sub.7 to C.sub.15, each X is independently selected from hydrogen, halogen, alkoxy from C.sub.1 to C.sub.10, dialkylamino from C.sub.1 to C.sub.10, methyl, ##STR3## each R.sub.1 is independently selected from halogen, alkoxy from C.sub.1 to C.sub.10, and R', L is ##STR4## Q, or X, where L can be bridged to Q, B is an optional base, "n" is 0 to 5, and M is titanium, zirconium, or hafnium.Type: GrantFiled: January 17, 1995Date of Patent: September 10, 1996Assignee: Occidental Chemical CorporationInventors: Ramesh Krishnamurti, Sandor Nagy, Bradley P. Etherton
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Patent number: 5539124Abstract: Disclosed is an azametallocene polymerization catalyst having the general formula ##STR1## where L is a ligand, or mixture of ligands, each having 4 to 30 carbon atoms and containing at least two fused rings, one of which is a pyrrolyl ring, Cp is a ligand containing a cyclopentadienyl group, B is a Lewis acid, Y is a halogen, alkoxy from C.sub.1 to C.sub.20, siloxy from C.sub.1 to C.sub.20, or mixtures thereof, M is titanium, zirconium, or mixtures thereof, m is 1 to 4, and n is 0 to 2, p is 0 to 2, q is 0 to 1, and m+n+q=4. The catalyst is useful in polymerizing unsaturated olefinic monomers such as ethylene.Type: GrantFiled: December 19, 1994Date of Patent: July 23, 1996Assignee: Occidental Chemical CorporationInventors: Bradley P. Etherton, Sandor Nagy
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Patent number: 4614540Abstract: The invention relates to a process for the removal of contaminating chemical elements from pig-iron, steel and other metals and metal alloys in course of the refining process with oxygen blast, as well as for accelerating hydrometallurgical processes.The essence of the process lies in that quantity of free oxygen radicals and temperature of smelting bath are controlled.Type: GrantFiled: July 31, 1985Date of Patent: September 30, 1986Assignee: Vasipari Kutato es Fejleszto VallalatInventors: Sandor Nagy, Jozsef Meszaros, Akos Ban, Janos Horvath, Andras Pethes, Lajos Schottner, Janos Sziklavari
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Patent number: 4193922Abstract: Herbicidal and fungicidal compounds of the formula ##STR1## wherein R.sub.1 is substituted or unsubstituted phenyl or naphthyl and R.sub.2 and R.sub.3 are the same or different and are C.sub.1 -C.sub.5 alkyl or from a five- or six-membered ring.Type: GrantFiled: June 8, 1976Date of Patent: March 18, 1980Assignee: Eszakmagyarorszagi VegyimuvekInventors: Pal Agocs, Istvan Fabian, Andras Gajdacsi, Sandor Nagy, Zoltan Pinter
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Patent number: 4113287Abstract: End fitting or armature for multi-channel hoses having a positioning plate and a guiding plate extending perpendicularly to the longitudinal axis of the hose and apertured to receive hose coupling elements. Means are provided for varying the axial spacing of the plates. A resilient element is disposed between the plates, a part of which seats in a groove formed in the internal surface of the end fitting when the plates are pulled towards each other under load.Type: GrantFiled: April 14, 1977Date of Patent: September 12, 1978Assignees: Banyaszati Kutato Intezet, Skotchinksy Institut Gornogo Dela, Taurus Gumiipari VallalatInventors: Nikolai Tikhonovich Bogatirev, Jevgeny Grigorievich Filianovich, Alexandr Dmitrievich Ignatyev, Alexandr Nikolaevich Merkulov, Jury Filippovich Ponomarenko, Jury Gheorghievich Shein, Jozsef Baso, Bela Frituz, Jozsef Korbuly, Sandor Nagy, Sandor Mikes, Zsolt Pap
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Patent number: 4027024Abstract: Pharmaceutical compositions of synergistic analgesic activity are provided which comprise an azido compound of the following formula: ##STR1## or a salt thereof wherein R is hydrogen, methyl, ethyl, acetyl or morpholino-methyl and a compound of the formula: ##STR2## wherein R.sup.1, R.sup.2, R.sup.3 are hydrogen or lower alkyl and the dotted lines represent hydrogenated bonds or olefinic bonds and pharmaceutically acceptable salts and quaternary salts thereof, in admixture with suitable inert solid or liquid carriers or dilutents.Type: GrantFiled: January 15, 1976Date of Patent: May 31, 1977Assignee: Chinoin Gyogyszer-es Vegyeszeti Termekek Gyara RTInventors: Jozsef Knoll, Zsuzsanna Furst, Zoltan Meszaros, Peter Szentmiklosi, Agoston David, Istvan Hermecz, Attila Mandi, Rezso Bognar, Sandor Makleit, Gyula Valovics, Laszlo Szavik, Sandor Nagy
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Patent number: 3954986Abstract: An analgesic substitute for morphine comprising the synergistic combination of azidomorphine or azidocodeine with a pyrimidazolium.Type: GrantFiled: November 14, 1973Date of Patent: May 4, 1976Assignee: Chinoin Gyogyszer es Vegyeszeti Termekek Gyara RT.Inventors: Jozsef Knoll, Zsuzsanna Furst, Zoltan Meszaros, Peter Szentmiklosi, Agoston David, Istvan Hermecz, Attila Mandi, Rezso Bognar, Sandor Makleit, Gyula Valovics, Laszlo Szlavik, Sandor Nagy