Patents by Inventor Eduard Troxler
Eduard Troxler 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: 5401845Abstract: Compounds of the formula I ##STR1## in which x is 1, 2 or 3, and, if x=1, R.sup.1 is C.sub.1 -C.sub.30 alkyl, C.sub.1 -C.sub.18 alkyl substituted by halogen, --COOR.sup.2, --CN, --NR.sup.3 R.sup.4 or by --CONR.sup.3 R.sup.4, C.sub.2 -C.sub.18 alkyl which is interrupted by --NR.sup.5 --, --O-- or --S--, C.sub.3 -C.sub.18 alkenyl, C.sub.5 -C.sub.12 cycloalkyl, phenyl-C.sub.1 -C.sub.4 alkyl, phenyl which is unsubstituted or substituted by C.sub.1 -C.sub.12 alkyl, halogen, phenyl-C.sub.1 -C.sub.4 alkyl and/or C.sub.1 -C.sub.4 alkoxy, or R.sub.1 is naphthyl, a radical of the formula ##STR2## R.sub.2, R.sub.3, R.sub.4 and R.sub.5, independently of one another, are hydrogen, C.sub.1 -C.sub.18 alkyl, C.sub.5 -C.sub.12 cycloalkyl or phenyl-C.sub.1 -C.sub.4 alkyl, R.sup.6 is hydrogen, methyl, allyl or benzyl, R.sup.7 is hydrogen or --OR.sup.9, R.sup.8 is hydrogen or methyl, R.sup.9 is hydrogen or C.sub.1 -C.sub.30 alkyl, R.sup.10 and R.sup.11, independently of one another, are hydrogen or C.sub.1 -C.sub.Type: GrantFiled: March 11, 1994Date of Patent: March 28, 1995Assignee: Ciba-Geigy CorporationInventors: Rita Pitteloud, Peter Hofmann, Rudolf Maul, Volker Schenk, Eduard Troxler, Horst Zinke
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Patent number: 5322871Abstract: Compounds of the formula I ##STR1## in which x is 1, 2 or 3, and, if x=1, R.sup.1 is C.sub.1 -C.sub.30 alkyl, C.sub.1 -C.sub.18 alkyl substituted by halogen, --COOR.sup.2, --CN, --NR.sup.3 R.sup.4 or by --CONR.sup.3 R.sup.4, C.sub.2 -C.sub.18 alkyl which is interrupted by --NR.sup.5 --, --O-- or --S--, C.sub.3 -C.sub.18 alkenyl, C.sub.5 -C.sub.12 cycloalkyl, phenyl-C.sub.1 -C.sub.4 alkyl, phenyl which is unsubstituted or substituted by C.sub.1 -C.sub.12 alkyl, halogen, phenyl-C.sub.1 -C.sub.4 alkyl and/or C.sub.1 -C.sub.4 alkoxy, or R.sub.1 is naphthyl, a radical of the formula ##STR2## R.sub.2, R.sub.3, R.sub.4 and R.sub.5, independently of one another, are hydrogen, C.sub.1 -C.sub.18 alkyl, C.sub.5 -C.sub.12 cycloalkyl or phenyl-C.sub.1 -C.sub.4 alkyl, R.sup.6 is hydrogen, methyl, allyl or benzyl, R.sup.7 is hydrogen or --OR.sup.9, R.sup.8 is hydrogen or methyl, R.sup.9 is hydrogen or C.sub.1 -C.sub.30 alkyl, R.sup.10 and R.sup.11, independently of one another, are hydrogen or C.sub.1 -C.sub.Type: GrantFiled: April 20, 1993Date of Patent: June 21, 1994Assignee: Ciba-Geigy CorporationInventors: Rita Pitteloud, Peter Hofmann, Rudolf Maul, Volker Schenk, Eduard Troxler, Horst Zinke
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Patent number: 4863982Abstract: Compounds of the formula I ##STR1## R.sup.4 is C.sub.5 -C.sub.7 -cycloalkyl which can be substituted by C.sub.1 -C.sub.4 -alkyl, and R.sup.5 to R.sup.9 are independently of one another C.sub.1 -C.sub.18 alkyl, unsubstituted or C.sub.1 -C.sub.4 -alkyl-substituted C.sub.5 -C.sub.7 -cycloalkyl, phenyl, benzyl or allyl, are suitable for stabilizing organic material against thermal, oxidative and/or actinic degradation.Type: GrantFiled: July 6, 1988Date of Patent: September 5, 1989Assignee: Ciba-Geigy CorporationInventors: Werner Stegmann, Eduard Troxler, Peter Hofmann, Hans-Rudolf Meier, Paul Dubs
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Patent number: 4536593Abstract: If the transesterification of esters of the formula ##STR1## with alcohols of the formula III A--(OH).sub.m is catalyzed by successive treatment with catalytic amounts (a) of a tin compound of a metal of the fourth main group or the fourth sub-group of the periodic system and (b) of an acid earth, compounds of the formula I ##STR2## are obtained in virtually quantitative yield. The products thus obtained contain no troublesome by-products and do not have to be additionally purified.R is methyl or ethyl, A is a radical derived from an m-hydric aliphatic alcohol, n is 0 to 2, and m is 1 to 4.Type: GrantFiled: July 5, 1983Date of Patent: August 20, 1985Assignee: Ciba-Geigy CorporationInventors: Ivan Orban, Eduard Troxler
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Patent number: 4535145Abstract: The invention relates to a novel process for the preparation of compounds of the formula I ##STR1## by polycondensation of a diol of the formula II ##STR2## with a dicarboxylic acid ester of the formula III ##STR3## In the above formulae, the substituents and symbols R.sub.1, R.sub.2, R.sub.3 and n are as defined in claim 1.The process comprises stirring the reaction medium which contains an excess of 2 to 50 mol. %, based on the diol of formula II, of the dicarboxylic acid ester of the formula III, in the presence of at least 0.03 mol. % of a suitable catalyst, until the bulk of the alkanol of the formula R.sub.3 OH formed during the reaction is distilled off, under a pressure of 0.7 to 1.3 bar, and thereafter stirring under a pressure of less than 5 mbar, in the temperature range from 100.degree. to 170.degree. C., and subsequently working up the resultant melt in conventional manner.Type: GrantFiled: June 29, 1984Date of Patent: August 13, 1985Assignee: Ciba-Geigy CorporationInventors: Eduard Troxler, Thomas Kainmuller, Rudolf Maul
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Patent number: 4492791Abstract: The known reaction of dichlorotriazines of the formula II ##STR1## in which Q is an ether or amino radical, with diamines of the formula IIIPip--NH--R--NH--Pip (III)in which Pip is a radical of the formula ##STR2## in which R.sup.1 is hydrogen, C.sub.1 -C.sub.12 -alkyl, C.sub.3 -C.sub.8 -alkenyl, C.sub.7 -C.sub.11 -phenylalkyl, C.sub.2 -C.sub.8 -alkanoyl or C.sub.3 -C.sub.5 -alkenoyl and R is a divalent organic radical leads to undesirable, sparingly soluble by-products. The formation of these by-products can be suppressed if the reaction is carried out in a water-immiscible organic solvent with the addition of an aqueous base--preferably NaOH or KOH--under pressure at 140.degree.-220.degree. C.Type: GrantFiled: April 25, 1983Date of Patent: January 8, 1985Assignee: Ciba-Geigy CorporationInventors: Ivan Orban, Eduard Troxler
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Patent number: 4461898Abstract: Mixtures of esters of polyalkylpiperidine derivatives, of the formulae I and II ##STR1## in which the proportions of I to II are 95 to 70% by weight and 5 to 30% by weight, are obtained by reacting about 2 mols of a piperidine of the formula III ##STR2## with 0.9 to 1.3 mols of a diester of the formula IV ##STR3## in the melt at between 100.degree. and 145.degree. C., in the presence of an alkali metal amide as a catalyst.The mixtures of esters thus obtained are very suitable as light stabilizers for plastics.Type: GrantFiled: November 1, 1982Date of Patent: July 24, 1984Assignee: Ciba-Geigy CorporationInventors: Anton Meier, Eduard Troxler
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Patent number: 4357476Abstract: New nonadienylamines, nonatrienylamines and nonylamines are described, as well as a new process for their manufacture by reacting a 1,3-diolefine with a Schiff's base in the presence of certain nickel catalysts. The new compounds are suitable for combating micro-organisms, for example in the protection of materials.Type: GrantFiled: November 22, 1978Date of Patent: November 2, 1982Assignee: Ciba Geigy Corporation, N.Y.Inventors: Dieter Reinchr, Bernard Hugelin, Eduard Troxler
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Patent number: 4310483Abstract: A process for producing a granulate of difficultly fusible additives for plastics, particularly of pigments, by thermal tumbling granulation, which process comprises mixing the additive in powder form with a granulating auxiliary which softens between 30.degree. and 200.degree. C. and which has a particle size of 0.1-2.0 mm; and subjecting this mixture to a gentle rotary motion, with heating by means of a source of heat being simultaneously applied at least until softening of the granulating auxiliary commences.Type: GrantFiled: August 3, 1979Date of Patent: January 12, 1982Assignee: Ciba-Geigy CorporationInventors: Werner H. Dorfel, Bernhard Medinger, Eduard Troxler
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Patent number: 4275211Abstract: A process for producing piperidines of the formula (I) ##STR1## in which R.sub.1 is hydrogen or C.sub.1 -C.sub.4 -alkyl, from a ketone of the formula (II) R.sub.1 --CH.sub.2 --C(O)--CH.sub.3, wherein R.sub.1 has the meaning given above, and ammonia, in which process there is used as catalyst a strongly acid ion exchanger having a medium or large mesh size or having large macropores.Type: GrantFiled: November 5, 1979Date of Patent: June 23, 1981Assignee: Ciba-Geigy CorporationInventors: Ivan Orban, Eduard Troxler
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Patent number: 4151163Abstract: (Pyrazolinylphenylsulfonyl)-piperazines of the formula ##STR1## wherein R.sub.1 is unsubstituted or substituted alkyl, aralkyl or alkenyl, R.sub.2 is unsubstituted or substituted alkyl, aryl or aralkyl R.sub.3, R.sub.4, R.sub.5, R.sub.6, R.sub.7 and R.sub.8 are certain substituents and Y is an anion, their preparation as well as their use as optical brighteners are disclosed.Type: GrantFiled: December 5, 1977Date of Patent: April 24, 1979Assignee: Ciba-Geigy CorporationInventors: Eduard Troxler, Christian Luthi
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Patent number: 4139560Abstract: New nonadienylamines, nonatrienylamines and nonylamines are described, as well as a new process for their manufacture by reacting a 1,3-diolefine with a Schiff's base in the presence of certain nickel catalysts. The new compounds are suitable for combating micro-organisms, for example in the protection of materials.Type: GrantFiled: March 3, 1977Date of Patent: February 13, 1979Assignee: Ciba Geigy CorporationInventors: Dieter Reinehr, Bernard Hugelin, Eduard Troxler
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Patent number: 4100111Abstract: The invention relates to curable mixtures which contain 1,10-substituted 1,10-diaminodecanes, as the curing agents, new 1,10-substituted 1,10-diaminodecanes and a process for the manufacture of the latter.The new 1,10-diaminodecanes are manufactured by catalytic hydrogenation of corresponding 3,12-substituted 1,2-diazo-1,5,9-cyclododecatrienes in the presence of an inert organic solvent, while raising the temperature to at least 120.degree. C.Type: GrantFiled: October 29, 1975Date of Patent: July 11, 1978Assignee: Ciba-Geigy CorporationInventors: Heinz Peter, Dieter Reinehr, Eduard Troxler
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Patent number: 3939147Abstract: New unsaturated 1,2-diazacyclododecanes, more particularly 1,2-diazacyclododecatrienes-1,5,9 and 1,2-diazacyclododecanes-1 and a novel process for the preparation thereof are disclosed which process comprises reacting a 1,3-diolefin with an azine in the presence of certain nickel catalysts. Said process unexpectedly yields 12-membered ring compounds only, and more especially oligomerization products of 2 mols of a 1,3-diolefin and 1 mol of an azine, while deactivation of the nickel catalyst by the -N=N-bond is avoided.Type: GrantFiled: June 14, 1973Date of Patent: February 17, 1976Assignee: Ciba-Geigy CorporationInventors: Bernard Hugelin, Eduard Troxler