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).
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Patent number: 5201998Abstract: 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: GrantFiled: February 28, 1990Date of Patent: April 13, 1993Assignee: Ciba-Geigy CorporationInventors: Rosemarie Topfl, Michael Bernheim, Hubert Meindl, Hans Wegmuller, Peter Rohringer, Dieter Werthemann
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Patent number: 4627889Abstract: 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: GrantFiled: May 23, 1983Date of Patent: December 9, 1986Assignee: Ciba-Geigy CorporationInventors: Michael Bernheim, Hubert Meindl, Peter Rohringer, Hans Wegmuller, Dieter Werthemann
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Patent number: 4623428Abstract: 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: GrantFiled: October 22, 1984Date of Patent: November 18, 1986Assignee: Ciba-Geigy CorporationInventors: Michael Bernheim, Hubert Meindl, Peter Rohringer, Hans Wegmuller, Dieter Werthemann
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Patent number: 4407976Abstract: 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: GrantFiled: June 9, 1981Date of Patent: October 4, 1983Assignee: Ciba-Geigy CorporationInventors: Jurg Merz, Hans Wegmuller, Rudolf F. Wurster
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Patent number: 4395546Abstract: 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: GrantFiled: August 31, 1981Date of Patent: July 26, 1983Assignee: Ciba-Geigy CorporationInventors: Jeroslav Haase, Peter Liechti, Hans Wegmuller, Rudolf F. Wurster, Quentin Bowes
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Patent number: 4306080Abstract: 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: GrantFiled: February 9, 1979Date of Patent: December 15, 1981Assignee: Ciba-Geigy CorporationInventors: Jaroslav Haase, Peter Liechti, Hans Wegmuller, Rudolf F. Wurster, Quentin Bowes
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Patent number: 4301217Abstract: 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: GrantFiled: October 17, 1979Date of Patent: November 17, 1981Assignee: Ciba-Geigy CorporationInventors: Peter Rohringer, Hans Wegmuller
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Patent number: 4263146Abstract: 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: GrantFiled: June 21, 1979Date of Patent: April 21, 1981Assignee: Ciba-Geigy CorporationInventors: Hans Wegmuller, Rudolf F. Wurster
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Patent number: 4180084Abstract: 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: GrantFiled: April 25, 1978Date of Patent: December 25, 1979Assignee: Ciba-Geigy CorporationInventors: Hans Wegmuller, Ulrich Horn, Walter Hungerbuhler, Jaroslav Haase
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Patent number: 4178438Abstract: 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: GrantFiled: September 11, 1978Date of Patent: December 11, 1979Assignee: Ciba-Geigy AktiengesellschaftInventors: Jaroslav Haase, Peter Liechti, Hans Wegmuller, Rudolf F. Wurster, Quentin Bowes
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Patent number: 4136039Abstract: 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: GrantFiled: June 28, 1977Date of Patent: January 23, 1979Assignee: Ciba-Geigy CorporationInventors: Horst Jager, Hans Wegmuller
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Patent number: 4104160Abstract: A novel process for purifying industrial effluents which comprises bringing said effluents into contact with cellulosic absorbent which has been pretreated with precipitants.Type: GrantFiled: February 25, 1977Date of Patent: August 1, 1978Assignee: Ciba-Geigy CorporationInventors: Hans Wegmuller, Jaroslav Haase
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Patent number: 4097376Abstract: A novel process for purifying industrial effluents which comprises bringing said effluents into contact with cellulosic absorbent which has been pretreated with precipitants.Type: GrantFiled: February 24, 1977Date of Patent: June 27, 1978Assignee: CIBA-GEIGY CorporationInventors: Hans Wegmuller, Jaroslav Haase
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Patent number: 4026796Abstract: A novel process for purifying industrial effluents which comprises bringing said effluents into contact with cellulosic absorbent which has been pretreated with precipitants.Type: GrantFiled: May 27, 1976Date of Patent: May 31, 1977Assignee: Ciba-Geigy CorporationInventors: Hans Wegmuller, Jaroslav Haase
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Patent number: 4025428Abstract: A novel process for purifying industrial effluents which comprises bringing said effluents into contact with cellulosic absorbent which has been pretreated with precipitants.Type: GrantFiled: May 7, 1975Date of Patent: May 24, 1977Assignee: Ciba-Geigy CorporationInventors: Hans Wegmuller, Jaroslav Haase
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Patent number: 3979285Abstract: A novel process for purifying industrial effluents which comprises bringing said effluents into contact with cellulosic absorbent which has been pretreated with precipitants.Type: GrantFiled: May 29, 1975Date of Patent: September 7, 1976Assignee: Ciba-Geigy CorporationInventors: Hans Wegmuller, Jaroslav Haase