Patents by Inventor Hans Wegmuller

Hans Wegmuller 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: 5201998
    Abstract: Sizing agents of which some are novel and which have at least one anionic or acidic group which is optionally in the form of a salt and at least two hydrophobic substituents which each have at least 5 carbon atoms, at least two of the most adjacent hydrophobic substituents being bonded to each other with a linking member which has at least 2 hetero atoms, are particularly suitable for use, together with commercially available polymeric, cationic retention aids, in a process for sizing paper or cardboard.
    Type: Grant
    Filed: February 28, 1990
    Date of Patent: April 13, 1993
    Assignee: Ciba-Geigy Corporation
    Inventors: Rosemarie Topfl, Michael Bernheim, Hubert Meindl, Hans Wegmuller, Peter Rohringer, Dieter Werthemann
  • Patent number: 4627889
    Abstract: Sizing agents which are novel compounds and have at least one anionic or acidic group which is optionally in salt form and at least two hydrophobic substituents of which at least two of the most adjacent ones are bonded to each other with a bridging member which has at least 1 carbon atom and 2 hetero atoms, at least one sulfur atom being present as hetero atom, in particular sulfimides or bisulfimides of fatty acid derivatives, are highly suitable for use, together with commercially available retention aids, in a process for sizing paper or cardboard.
    Type: Grant
    Filed: May 23, 1983
    Date of Patent: December 9, 1986
    Assignee: Ciba-Geigy Corporation
    Inventors: Michael Bernheim, Hubert Meindl, Peter Rohringer, Hans Wegmuller, Dieter Werthemann
  • Patent number: 4623428
    Abstract: Sizing agents, which are novel compounds and contain at least one anionic or acidic sulfonylcarbonylimide group which may be in salt form and at least two hydrophobic substituents of which at least two are linked to each other through a bridge member of the formula --CO--NH--A.sub.1 --(SO.sub.2 --NH--CO).sub.t, where A.sub.1 is a divalent or trivalent aliphatic, cycloaliphatic or aromatic radical of up to 10 carbon atoms, and t is 1 or 2, are particularly suitable, together with commercially available retention aids, for use in a process for sizing paper or cardboard.
    Type: Grant
    Filed: October 22, 1984
    Date of Patent: November 18, 1986
    Assignee: Ciba-Geigy Corporation
    Inventors: Michael Bernheim, Hubert Meindl, Peter Rohringer, Hans Wegmuller, Dieter Werthemann
  • Patent number: 4407976
    Abstract: An anionic adsorbent which has been prepared by reacting (a) a monomeric compound which contains at least one anionic group and at least one amide group, especially a carboxamide group, which can be methylolated, with (b) an aminoplast precondensate which is free from salt-forming anionic groups.The novel adsorbent is particularly suitable for removing cationic substances, such as cationic dyes, and a heavy metal ions from aqueous solutions, especially from effluents.
    Type: Grant
    Filed: June 9, 1981
    Date of Patent: October 4, 1983
    Assignee: Ciba-Geigy Corporation
    Inventors: Jurg Merz, Hans Wegmuller, Rudolf F. Wurster
  • Patent number: 4395546
    Abstract: A novel process for the purification of industrial effluents, wherein the effluents are brought into contact with cationically modified cellulose-containing materials, the cationic constituent of which is bonded to the cellulose part via the grouping of the general formula--O--CH.sub.2 --N<in which the nitrogen belongs to an amide group of the cationic constituent and the oxygen is bonded to the cellulose part.
    Type: Grant
    Filed: August 31, 1981
    Date of Patent: July 26, 1983
    Assignee: Ciba-Geigy Corporation
    Inventors: Jeroslav Haase, Peter Liechti, Hans Wegmuller, Rudolf F. Wurster, Quentin Bowes
  • Patent number: 4306080
    Abstract: A novel process for the purification of industrial effluents, wherein the effluents are brought into contact with cationically modified, cellulose-containing materials, the cationic constituent of which is bonded to the cellulose part via the grouping of the general formula--O--CH.sub.2 --N<in which the nitrogen belongs to an amide group of the cationic constituent and the oxygen is bonded to the cellulose part.
    Type: Grant
    Filed: February 9, 1979
    Date of Patent: December 15, 1981
    Assignee: Ciba-Geigy Corporation
    Inventors: Jaroslav Haase, Peter Liechti, Hans Wegmuller, Rudolf F. Wurster, Quentin Bowes
  • Patent number: 4301217
    Abstract: A process for flameproofing wood is claimed, which comprises treating the wood with aqueous preparations which contain(a) at least one water-soluble ammonium salt of a non-volatile inorganic acid, e.g. ammonium sulfate or ammonium phosphate,(b) at least one water-soluble cationic reaction product of dicyandiamide, formaldehyde, optionally an ammonium salt and/or an alkylenepolyamine containing at most 18 carbon atoms, or the acid salt thereof.Components (a) and (b) are applied in succession or preferably simultaneously and the wood is subsequently dried. The flameproof finish obtained is resistant to rinsing. The wood provided with the flameproof finish is used in particular as mine timber.
    Type: Grant
    Filed: October 17, 1979
    Date of Patent: November 17, 1981
    Assignee: Ciba-Geigy Corporation
    Inventors: Peter Rohringer, Hans Wegmuller
  • Patent number: 4263146
    Abstract: A process for removing cationic substances from an aqueous solution, which comprises bringing the solution into contact with a cellulose-containing material which has been chemically modified anionically and in which the anionic constituent is bonded to the cellulose moiety by a grouping of the general formula--O--CH.sub.2 --N<wherein the nitrogen belongs to an amide group of the anionic constituent and the oxygen atom is bonded to the cellulose.
    Type: Grant
    Filed: June 21, 1979
    Date of Patent: April 21, 1981
    Assignee: Ciba-Geigy Corporation
    Inventors: Hans Wegmuller, Rudolf F. Wurster
  • Patent number: 4180084
    Abstract: Hair-care compositions in the form of aqueous, alcoholic or aqueous alcoholic solutions, creams, gels, emulsions, or of aerosols which optionally contain a propellant are provided which contain at least one polymeric quaternary ammonium salt which contains cationic units of the formula ##STR1## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are the same or different and represent alkyl, cycloalkyl or alkenyl, aryl or aralkyl, or (R.sub.1 and R.sub.2) and/or (R.sub.3 and R.sub.4) together with the nitrogen atom to which they are bonded, form an unsubstituted or substituted heterocyclic ring containing 3 to 6 ring members,A.sub.1 represents an optionally substituted alkylene, cycloalkylene or aralkylene bridging group and A.sub.2 is a group of the formula ##STR2## The compositions are especially useful as shampoos.
    Type: Grant
    Filed: April 25, 1978
    Date of Patent: December 25, 1979
    Assignee: Ciba-Geigy Corporation
    Inventors: Hans Wegmuller, Ulrich Horn, Walter Hungerbuhler, Jaroslav Haase
  • Patent number: 4178438
    Abstract: A novel process for the purification of industrial effluents, wherein the effluents are brought into contact with cationically modified, cellulose-containing materials, the cationic constituent of which is bonded to the cellulose part via the grouping of the general formula--O--CH.sub.2 --N<in which the nitrogen belongs to an amide group of the cationic constituent and the oxygen is bonded to the cellulose part, and the cationically modified, cellulose-containing materials possessing such a constituent, are disclosed.
    Type: Grant
    Filed: September 11, 1978
    Date of Patent: December 11, 1979
    Assignee: Ciba-Geigy Aktiengesellschaft
    Inventors: Jaroslav Haase, Peter Liechti, Hans Wegmuller, Rudolf F. Wurster, Quentin Bowes
  • Patent number: 4136039
    Abstract: The present invention relates to boric acid/amine reaction products of (a) boric acid and (b) an amine of the formula ##STR1## in which R denotes optionally substituted alkyl, alkenyl, aryl or cycloalkyl or an optionally substituted heterocyclic radical and m and n are each a number from 1 to 6. These products are used as auxiliaries in the textile, leather, detergent and cosmetics industry.
    Type: Grant
    Filed: June 28, 1977
    Date of Patent: January 23, 1979
    Assignee: Ciba-Geigy Corporation
    Inventors: Horst Jager, Hans Wegmuller
  • Patent number: 4104160
    Abstract: A novel process for purifying industrial effluents which comprises bringing said effluents into contact with cellulosic absorbent which has been pretreated with precipitants.
    Type: Grant
    Filed: February 25, 1977
    Date of Patent: August 1, 1978
    Assignee: Ciba-Geigy Corporation
    Inventors: Hans Wegmuller, Jaroslav Haase
  • Patent number: 4097376
    Abstract: A novel process for purifying industrial effluents which comprises bringing said effluents into contact with cellulosic absorbent which has been pretreated with precipitants.
    Type: Grant
    Filed: February 24, 1977
    Date of Patent: June 27, 1978
    Assignee: CIBA-GEIGY Corporation
    Inventors: Hans Wegmuller, Jaroslav Haase
  • Patent number: 4026796
    Abstract: A novel process for purifying industrial effluents which comprises bringing said effluents into contact with cellulosic absorbent which has been pretreated with precipitants.
    Type: Grant
    Filed: May 27, 1976
    Date of Patent: May 31, 1977
    Assignee: Ciba-Geigy Corporation
    Inventors: Hans Wegmuller, Jaroslav Haase
  • Patent number: 4025428
    Abstract: A novel process for purifying industrial effluents which comprises bringing said effluents into contact with cellulosic absorbent which has been pretreated with precipitants.
    Type: Grant
    Filed: May 7, 1975
    Date of Patent: May 24, 1977
    Assignee: Ciba-Geigy Corporation
    Inventors: Hans Wegmuller, Jaroslav Haase
  • Patent number: 3979285
    Abstract: A novel process for purifying industrial effluents which comprises bringing said effluents into contact with cellulosic absorbent which has been pretreated with precipitants.
    Type: Grant
    Filed: May 29, 1975
    Date of Patent: September 7, 1976
    Assignee: Ciba-Geigy Corporation
    Inventors: Hans Wegmuller, Jaroslav Haase