Patents by Inventor Wolfgang Wehner

Wolfgang Wehner 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).

  • Patent number: 5534566
    Abstract: Use of a di- or polysaccharide alcohol and an inorganic or organic zinc, aluminum or rare-earth compound allows a high degree of stabilization of a halogen-containing polymer or polymer recyclate.
    Type: Grant
    Filed: April 10, 1995
    Date of Patent: July 9, 1996
    Assignee: Ciba-Geigy Corporation
    Inventors: Wolfgang Wehner, Rolf Drewes, Karl J. Kuhn, Hans-Jurgen Sander, Markus Kolb
  • Patent number: 5519077
    Abstract: A high degree of stabilization of polyvinyl chloride is achieved by using a perchlorate, a terminal epoxide compound and an antioxidant.
    Type: Grant
    Filed: April 10, 1995
    Date of Patent: May 21, 1996
    Assignee: Ciba-Geigy Corporation
    Inventors: Rolf Drewes, Markus Kolb, Karl J. Kuhn, Hans-Jurgen Sander, Wolfgang Wehner
  • Patent number: 5492949
    Abstract: Use of an inorganic or organic zinc compound and a terminal epoxide compound, optionally with chalk, gives a high level of stabilization of PVC.
    Type: Grant
    Filed: April 12, 1994
    Date of Patent: February 20, 1996
    Assignee: Ciba-Geigy Corporation
    Inventors: Rolf Drewes, Markus Kolb, Karl Kuhn, Wolfgang Wehner
  • Patent number: 5350785
    Abstract: Stabilized chlorine-containing polymer compositions comprising a chlorine-containing polymer and a stabilizer mixture comprising:a) at least one cyclic or non-cyclic, sterically hindered amine,b) at least one organic zinc compound and/or inorganic zinc compound from the series consisting of carbonates, chlorides, sulfates, oxides, hydroxides, basic oxides and mixed oxides, andc) at least one compound from the series consisting of the crystalline alkali metal/alkaline earth metal aluminosilicates, and, if desired,d) at least one 1,3-diketone and/ore) at least one organic or inorganic calcium compound.Polymer compositions of this type are preferably employed for slush mould and crash pad applications.
    Type: Grant
    Filed: May 6, 1993
    Date of Patent: September 27, 1994
    Assignee: Ciba-Geigy Corporation
    Inventors: Hans J. Sander, Olaf-Rene Hartmann, Hermann O. Wirth, Wolfgang Wehner
  • Patent number: 5272192
    Abstract: Compositions containinga) a chlorine-containing polymer,b) 0.01 to 1% by weight, relative to the chlorine-containing polymer, of a compound of the formula I and/or its hydrochloride, ##STR1## in which R is C.sub.6 -C.sub.20 alkyl, C.sub.3 -C.sub.20 alkyl interrupted by 1 to 5 oxygen atoms, C.sub.1 -C.sub.20 alkyl substituted by 1 to 5 OH, C.sub.3 -C.sub.20 alkenyl, C.sub.3 -C.sub.8 cycloalkyl, C.sub.1 -C.sub.4 alkyl-substituted C.sub.3 -C.sub.8 cycloalkyl, C.sub.7 -C.sub.11 phenylalkyl, C.sub.7 -C.sub.11 phenylalkyl which is substituted on the phenyl by 1 to 3 radicals, these radicals, independently of one another, being hydroxyl, chlorine, C.sub.1 -C.sub.4 alkyl, methoxy or ethoxy, or R is furthermore a group of the formula IIa or IIb, ##STR2## in which X is C.sub.1 -C.sub.20 alkyloxy, C.sub.1 -C.sub.20 alkylthio, phenyloxy, phenylthio, benzyloxy or benzylthio, and R.sub.1, R.sub.2 and R.sub.3, independently of one another, are hydrogen, C.sub.1 -C.sub.20 alkyl, C.sub.1 -C.sub.20 alkyloxy, C.sub.1 -C.sub.
    Type: Grant
    Filed: April 13, 1992
    Date of Patent: December 21, 1993
    Assignee: Ciba-Geigy Corporation
    Inventors: Wolfgang Wehner, Hans-Gunter Kostler
  • Patent number: 5177135
    Abstract: A composition comprisinga) a chlorinated polymer,b) at least one Me(II) carboxylate and/or Me(II) phenolate and/or Me(II) alkylphenolate, wherein Me(II) is Ba, Ca, Mg, Cd, Sr or Zn, andc) at least one compound of formula (I) ##STR1## wherein n is 1, 2, 3, 4 or 6 and, when n=1, R is phenyl and X is an alkyl group of 10 to 20 carbon atoms, when n=2, R is alkyl of 1 to 4 carbon atoms or phenyl, and X is alkylene of 4 to 12 carbon atoms, alkylene of 2 to 12 carbon atoms which is substituted by at least one C.sub.1 -C.sub.8 alkyl group, or is --CH.sub.2 --CH.sub.2 --S--CH.sub.2 --CH.sub.2 --S--CH.sub.2 --CH.sub.2 -- or --CH.sub.2 --CH.sub.2 --S--CH.sub.2 --CH.sub.2 --, when n=3, R is alkyl of 1 to 4 carbon atoms of phenyl and X is CH.sub.3 CH.sub.2 C(CH.sub.2 --).sub.
    Type: Grant
    Filed: December 3, 1990
    Date of Patent: January 5, 1993
    Assignee: Ciba-Geigy Corporation
    Inventors: Wolfgang Wehner, Hermann O. Wirth
  • Patent number: 5155152
    Abstract: The compounds of formula I ##STR1## wherein n is 1 or 2, R.sub.1 is C.sub.1 -C.sub.4 alkyl, R.sub.2 and R.sub.3 are, for example, alkanoyl or alkanoyloxy or R.sub.3 may also be, for example, alkanedioyl, are suitable for stabilizing chlorine-containing polymers against thermal and light-induced degradation.Some of the compounds of formula I are novel.
    Type: Grant
    Filed: March 19, 1990
    Date of Patent: October 13, 1992
    Assignee: Ciba-Geigy Corporation
    Inventors: Wolfgang Wehner, Hermann O. Wirth
  • Patent number: 5118346
    Abstract: Compounds of the formulaR.sup.1 3Y.sup..sym. R.sup.2 X.sup..crclbar. (I)in which the radicals R.sup.1 are identical or different and are C.sub.2 -C.sub.6 alkyl, phenyl, C.sub.1 -C.sub.2 alkyl-substituted phenyl or C.sub.5 -C.sub.7 cycloalkyl, benzyl, tolyl, or hydroxy-C.sub.1 -C.sub.4 alkyl and R.sup.2 is straight-chain or branched C.sub.8 -C.sub.2 alkyl, and Y is P or N, or R.sup.1 3Y.sup..sym. R.sup.2 is ##STR1## in which R.sup.4 is H or --CH.sub.3, or ##STR2## and X is BF.sub.4 or PF.sub.6, which are used as biocides, in particular in industrial solutions, in paints or in solid materials.
    Type: Grant
    Filed: January 23, 1991
    Date of Patent: June 2, 1992
    Assignee: Ciba-Geigy Corporation
    Inventors: Wolfgang Wehner, Joachim Lorenz, Reinhardt Grade
  • Patent number: 5030671
    Abstract: A composition containing a) a chlorine-containing polymer, b) at least one Me(II) carboxylate and/or Me(II) phenolate, wherein Me(II) represents Ba, Ca, Mg, Sr or Zn, and c) at least one compound of formula I ##STR1## wherein n is 1, 2, 3, 4 or 6 and, when n is 1, X is C.sub.1 -C.sub.20 alkyl, C.sub.3 -C.sub.20 -alkenyl, C.sub.5 -C.sub.12 cycloalkyl, C.sub.5 -C.sub.12 cycloalkyl substituted by C.sub.1 -C.sub.4 alkyl, phenyl, C.sub.7 -C.sub.9 phenylalkyl, phenyl substituted by from 1 to 3 radicals or C.sub.7 -C.sub.9 phenylalkyl substituted on the phenyl ring by from 1 to 3 radicals, the radicals being selected from the group consisting of C.sub.1 -C.sub.4 alkyl, chlorine, hydroxy, methoxy and ethoxy; when n is 2, X is C.sub.2 -C.sub.12 alkylene, C.sub.2 -C.sub.12 alkylene substituted by phenyl, or C.sub.2 -C.sub.12 alkylene interrupted by oxygen or sulfur atoms; when n is 3, X is, for example, C.sub.3 -C.sub.7 alkanetriyl; when n is 4, X is, for example, C.sub.4 .varies.C.sub.
    Type: Grant
    Filed: October 16, 1989
    Date of Patent: July 9, 1991
    Assignee: Ciba-Geigy Corporation
    Inventors: Wolfgang Wehner, Gerd Abeler
  • Patent number: 4786672
    Abstract: Stabilized chlorine-containing polymers containing at least one anilinotriazine of the formula I ##STR1## in which R.sub.1 is phenyl or a group of the formula II ##STR2## in which R.sub.4, R.sub.5 and R.sub.6 independently of one another are chlorine, bromine, cyano, methoxycarbonyl, ethoxycarbonyl, carbamoyl, hydroxyl, methoxy, ethoxy or C.sub.1 -C.sub.18 -alkyl and n.sub.1, n.sub.2 and n.sub.3 are 0, 1, 2, or 3, subject to the proviso that the sum of n.sub.1 +n.sub.2 +n.sub.3 is an integer from 1 to 3, and R.sub.2 and R.sub.3 independently of one another are C.sub.2 -C.sub.4 -hydroxyalkyl, and also novel anilinotriazines and the use thereof for stabilizing chlorine-containing polymers against the harmful effects of light and/or heat.
    Type: Grant
    Filed: July 21, 1987
    Date of Patent: November 22, 1988
    Assignee: Ciba-Geigy Corporation
    Inventor: Wolfgang Wehner
  • Patent number: 4727104
    Abstract: Compounds of formula I ##STR1## wherein R is --COOCH.sub.3, --COOC.sub.2 H.sub.5 or methyl, R.sub.1 is --COOR.sub.3, R.sub.2 is hydrogen, methyl or ethyl and R.sub.3 is C.sub.1 -C.sub.22 alkyl, are suitable for stabilizing organic polymers, in particular chlorinated thermoplastics, against the influence of heat and/or light.
    Type: Grant
    Filed: January 27, 1986
    Date of Patent: February 23, 1988
    Assignee: Ciba-Geigy Corporation
    Inventors: Wolfgang Wehner, Klaus-Peter Michaelis, Rainer Schneider
  • Patent number: 4656209
    Abstract: The invention relates to thermoplastic molding compositions based on vinyl chloride polymers and containing, as stabilizer, 0.1 to 5% by weight of an aminouracil of the formula I ##STR1## wherein R.sup.1 is hydrogen, C.sub.1 -C.sub.8 alkyl, C.sub.5 -C.sub.8 cycloalkyl, phenyl, benzyl, C.sub.1 -C.sub.4 hydroxyalkyl, hydroxyphenyl, C.sub.2 -C.sub.8 alkoxyalkyl, C.sub.2 -C.sub.8 alkylthioalkyl, C.sub.6 -C.sub.10 cycloalkoxyalkyl, C.sub.6 -C.sub.10 cycloalkylthioalkyl, C.sub.8 -C.sub.14 aralkoxyalkyl, C.sub.8 -C.sub.14 aralkylthioalkyl, C.sub.7 -C.sub.14 aryloxyalkyl, C.sub.7 -C.sub.14 arylthioalkyl, --NHR.sup.4, in which R.sup.4 is hydrogen, phenyl or chlorine-substituted phenyl, and R.sup.2 and R.sup.3, each independently of the other, are C.sub.2 -C.sub.21 alkyl, C.sub.6 -C.sub.12 aryl or C.sub.7 -C.sub.19 aralkyl, while one of R.sup.2 and R.sup.3 may also be hydrogen.The addition of such aminouracils gives vinyl chloride polymers which are very well protected against heat-induced degradation.
    Type: Grant
    Filed: May 17, 1982
    Date of Patent: April 7, 1987
    Assignee: Ciba-Geigy Corporation
    Inventors: Wolfgang Wehner, Hermann O. Wirth
  • Patent number: 4642322
    Abstract: Chlorine-containing thermoplastics containing, as the stabilizer, at least one compound of the formula I ##STR1## wherein m is the number 0, 1 or 2, n is the number 1, 2 or 3, P is the number 1 or 2, Hal is --F, --Cl, --Br or --I, X is --NH.sub.2, --NHCH.sub.3, --NH--NH.sub.2, --OCH.sub.3, --OC.sub.2 H.sub.5, --CH.sub.3 or --C.sub.2 H.sub.5, Y is --CO-- and R is as defined in claim 1, are described. A process for the preparation of (substituted) anthranilic acid amides is also described.
    Type: Grant
    Filed: January 2, 1986
    Date of Patent: February 10, 1987
    Assignee: Ciba-Geigy Corporation
    Inventors: Wolfgang Wehner, Horst Muller, deceased, Rainer Schneider
  • Patent number: 4639482
    Abstract: Compositions for the stabilization of polyvinylchloride comprising blends or tri- and tetrathiophosphoric acid esters and at least one polyvinylchloride stabilizer of the type Me(II)-carboxylate and/or Me(II)-phenolate as well as the polyvinylchloride stabilized therewith.
    Type: Grant
    Filed: March 21, 1983
    Date of Patent: January 27, 1987
    Assignee: Ciba-Geigy Corporation
    Inventors: Horst Muller, Horst Zinke, Wolfgang Wehner
  • Patent number: 4578489
    Abstract: Ammonium stannates of the formula[(R.sup.1).sub.a (R.sup.2).sub.b N(R.sup.3).sub.c (R.sup.4).sub.d ].sub.n.sup..sym. [(R.sup.7).sub.q SnX.sub.r Y.sub.t ].sub.w.sup.n.crclbar.(I)in which the symbols R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.7, X, Y, a, b, c, d, n, q, r, t and w are as defined in the description, are effective biocides. They can be used both for the protection of materials and for protecting crop plants. Their good solubility in water and their low volatility are particularly valuable properties.
    Type: Grant
    Filed: September 26, 1983
    Date of Patent: March 25, 1986
    Assignee: Ciba-Geigy Corporation
    Inventors: Wolfgang Wehner, Reinhardt Grade
  • Patent number: 4554367
    Abstract: Phosphonium stannates of the formula I[(R.sup.1).sub.a (R.sup.2).sub.b P].sub.n.sup..sym. [R.sub.q.sup.3 SnX.sub.r Y.sub.t ].sub.w.sup.n.crclbar. (I),in which the symbols R.sup.1, R.sup.2, R.sup.3, X, Y, a, b, n, q, r, t and w are as defined in the description, are active biocides. They can be used both in the preservation of materials and for protecting crop plants. Their water-solubility and their low volatility are particularly valuable properties.
    Type: Grant
    Filed: September 26, 1983
    Date of Patent: November 19, 1985
    Assignee: Ciga-Geigy Corporation
    Inventors: Wolfgang Wehner, Reinhardt Grade
  • Patent number: 4486424
    Abstract: Triorganotin hydantoin compounds of the formula ##STR1## wherein R is C.sub.1 -C.sub.8 -alkyl, C.sub.5 -C.sub.8 -cycloalkyl, phenyl or ##STR2## R.sub.1 and R.sub.2 are each hydrogen, C.sub.1 -C.sub.8 -alkyl, phenyl, hydroxyphenyl, or together they are C.sub.5 -C.sub.7 -alkylene or oxygen,X is oxygen or sulfur, andY is hydrogen or --Sn--(R).sub.3, as well as a process for producing these compounds, and the use thereof for combating pests are described.
    Type: Grant
    Filed: October 4, 1982
    Date of Patent: December 4, 1984
    Assignee: Ciga-Geigy Corporation
    Inventors: Wolfgang Wehner, Peter Ackermann
  • Patent number: 4472396
    Abstract: There are described triorganotin-isocyanuric compounds of the formula ##STR1## wherein R is C.sub.1 -C.sub.6 -alkyl, phenyl, C.sub.5 -C.sub.8 -cycloalkyl or ##STR2## X is oxygen or sulfur, and Y.sub.1 and Y.sub.2 are each hydrogen or --Sn--R).sub.3,as well as a process for producing this compound, and the use thereof for combating pests.
    Type: Grant
    Filed: October 4, 1982
    Date of Patent: September 18, 1984
    Assignee: Ciba-Geigy Corporation
    Inventors: Wolfgang Wehner, Peter Ackermann
  • Patent number: 4396552
    Abstract: Metal mercaptides of the formula ##STR1## wherein Me is a metal, oxometal, alkoxymetal or organo-metal cation from the 1st-5th group of the periodic system, n is 0, 1 or 2, m is an integer from 1 to 4, R.sup.1 is hydrogen, alkyl, acyloxymethyl or alkoxymethyl, R.sup.2 is a sterically hindered phenol group, and R.sup.3 is a monovalent organic radical, are stabilizers for organic materials which are sensitive to heat and oxygen. They can be used in particular as stabilizers for chlorine-containing thermoplasts, for elastomers and for lubricants. Preferred cations are organotin cations.
    Type: Grant
    Filed: January 28, 1981
    Date of Patent: August 2, 1983
    Assignee: Ciba-Geigy Corporation
    Inventors: Gerrit Knobloch, Wolfgang Wehner, Hermann O. Wirth
  • Patent number: 4390538
    Abstract: The invention relates to triorgano-tin triazine compounds of the formula ##STR1## wherein X' is --S--Y--COOSn(R').sub.3, --O--Y--COOSn(R').sub.3 or --NH--Y--COOSn(R').sub.3, each of X" and X'" has the same meaning as X' or is halogen, (C.sub.1 -C.sub.6 alkyl).sub.2 N--, (C.sub.1 -C.sub.6 alkyl)--NH--, (C.sub.1 -C.sub.6 alky)--O-- or (C.sub.1 -C.sub.6 alkyl)--S--, Y is C.sub.1 -C.sub.6 alkylene, and the radicals R' can be the same or different and are C.sub.1 -C.sub.6 alkyl, bennzyl, phenyl or cycohexyl, each of which is unsubstituted or substituted.A process for the production of thee compounds, starting compounds suitable for this process, and the use of the compounds of formula I in pest control are also described.
    Type: Grant
    Filed: August 31, 1981
    Date of Patent: June 28, 1983
    Assignee: Ciba-Geigy Corporation
    Inventors: Wolfgang Wehner, Saleem Farooq, Hans-Gunter Kostler