Patents by Inventor Hubert Meindl

Hubert Meindl 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: 5110582
    Abstract: A hair-setting preparation which contains(1) a solution of at least one terpolymer in an anhydrous or water-containing organic solvent, the terpolymer having been prepared by the copolymerization of(a) an N-alkylacrylamide or N-alkylmethacrylamide having 1 to 4 carbon atoms in the alkyl moiety, with(b) a C.sub.1 -C.sub.4 -alkyl ester or C.sub.1 -C.sub.4 -hydroxyalkyl ester of acrylic acid or methacrylic acid, and with(c) an .alpha.,.beta.-unsaturated moncarboxylic acid or dicarboxylic acid, and at least 50% of the carboxyl groups in the terpolymer having been neutralized by a lower organic base, and(2) a propellent which consists of at least 30% by weight, based on the total propellent, of a halogen-free propellent gas, in particular a hydrocarbon.
    Type: Grant
    Filed: August 3, 1987
    Date of Patent: May 5, 1992
    Assignee: BASF Aktiengesellschaft
    Inventors: Walter Hungerbuhler, Hubert Meindl
  • Patent number: 4737239
    Abstract: Sizing agents devoid of anhydride groups, some of which are known and others are novel compounds, and which carry a single N,N-C.sub.6 -C.sub.22 alkyl(or alkenyl)amide group as hydrophobic substituent and at least one anionic group, in particular N,N-C.sub.6 -C.sub.22 dialkyl or N,N-C.sub.6 -C.sub.22 dialkenyl partial amides of a dicarboxylic acid, tricarboxylic acid or sulfocarboxylic acid, or the salts thereof, are particularly suitable, together with commercially available retention aids, for use in a process for pulp-sizing paper or cardboard at a pH of at least 6.5 of the fibre suspension, in the absence of e.g. aluminium sulfate, or in a process for surface-sizing paper.
    Type: Grant
    Filed: September 9, 1985
    Date of Patent: April 12, 1988
    Assignee: Ciba-Geigy Corporation
    Inventors: Michael Bernheim, Hubert Meindl, Peter Rohringer
  • Patent number: 4735685
    Abstract: Anionic sizing agents containing anhydride groups, which are novel compounds and which contain a single N,N-C.sub.6 -C.sub.22 di(alkyl- or alkenyl)amido group, a N-C.sub.6 -C.sub.22 (alkyl- or alkenyl)amido group or a C.sub.6 -C.sub.22 -(alkyl or alkenyl) ester group as hydrophobic substituent, and at least one anionic group in acid or salt form, in particular the anhydride of a N,N-C.sub.6 -C.sub.22 dialkylamido- or N,N-C.sub.6 -C.sub.22 dialkenylamidocarboxylic acid, the anhydride of a N-C.sub.6 -C.sub.22 alkylamido- or N,N-C.sub.6 -C.sub.22 alkenylamidocarboxylic acid, or the C.sub.6 -C.sub.22 alkyl ester or C.sub.6 -C.sub.22 alkenyl ester of an aromatic tetracarboxylic acid anhydride or a salt thereof, are particularly suitable, together with commerically available retention aids, for use in a process for pulp-sizing or surface-sizing paper or cardboard.
    Type: Grant
    Filed: September 9, 1985
    Date of Patent: April 5, 1988
    Assignee: Ciba-Geigy Corporation
    Inventors: Michael Bernheim, Hubert Meindl, Peter Rohringer
  • 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: 4460568
    Abstract: Novel copolymeric ammonium salts which are soluble or form microemulsions in aqueous surfactant systems and which can be obtained by water-in-oil emulsion polymerization or solution polymerization of a quaternary ammonium salt of the acrylic acid series and at least one other acrylic comonomer and reaction with an anionic optionally zwitterionic surfactand, ion exchange taking place, and has a molecular weight distribution of 10.sup.4 to 10.sup.9, the molecular weight of at least 5 percent by weight of the copolymer being 10.sup.7 to 10.sup.9, can be used as cosmetics, in particular as hair cosmetics, hair treated according to the invention having excellent ease of dry combing and, in particular, ease of wet combing.
    Type: Grant
    Filed: September 28, 1982
    Date of Patent: July 17, 1984
    Assignee: Ciba-Geigy Corporation
    Inventors: Dieter Strasilla, Hubert Meindl, Laszlo Moldovanyi, Charles Fearnley
  • Patent number: 4460567
    Abstract: Novel copolymeric ammonium salts which are soluble or form microemulsions in aqueous surfactant systems and which can be obtained by water-in-oil emulsion polymerization or solution polymerization of a quaternary ammonium salt of the acrylic acid series and at least one other acrylic comonomer and reaction with an anionic optionally zwitterionic surfactand, ion exchange taking place, and has a molecular weight distribution of 10.sup.4 to 10.sup.9, the molecular weight of at least 5 percent by weight of the copolymer being 10.sup.7 to 10.sup.9, can be used as cosmetics, in particular as hair cosmetics, hair treated according to the invention having excellent ease of dry combing and, in particular, ease of wet combing.
    Type: Grant
    Filed: September 28, 1982
    Date of Patent: July 17, 1984
    Assignee: Ciba-Geigy Corporation
    Inventors: Dieter Strasilla, Hubert Meindl, Laszlo Moldovanyi, Charles Fearnley
  • Patent number: 4460570
    Abstract: Novel copolymeric ammonium salts which are soluble or form microemulsions in aqueous surfactant systems and which can be obtained by water-in-oil emulsion polymerization or solution polymerization of a quaternary ammonium salt of the acrylic acid series and at least one other acrylic comonomer and reaction with an anionic optionally zwitterionic surfactant, ion exchange taking place, and has a molecular weight distribution of 10.sup.4 to 10.sup.9, the molecular weight of at least 5 percent by weight of the copolymer being 10.sup.7 to 10.sup.9, can be used as cosmetics, in particular as hair cosmetics, hair treated according to the invention having excellent ease of dry combing and, in particular, ease of wet combing.
    Type: Grant
    Filed: September 28, 1982
    Date of Patent: July 17, 1984
    Assignee: Ciba-Geigy Corporation
    Inventors: Dieter Strasilla, Hubert Meindl, Laszlo Moldovanyi, Charles Fearnley
  • Patent number: 4460569
    Abstract: Novel copolymeric ammonium salts which are soluble or form microemulsions in aqueous surfactant systems and which can be obtained by water-in-oil emulsion polymerization or solution polymerization of a quaternary ammonium salt of the acrylic acid series and at least one other acrylic comonomer and reaction with an anionic optionally zwitterionic surfactant, ion exchange taking place, and has a molecular weight distribution of 10.sup.4 to 10.sup.9, the molecular weight of at least 5 percent by weight of the copolymer being 10.sup.7 to 10.sup.9, can be used as cosmetics, in particular as hair cosmetics, hair treated according to the invention having excellent ease of dry combing and, in particular, ease of wet combing.
    Type: Grant
    Filed: September 28, 1982
    Date of Patent: July 17, 1984
    Assignee: Ciba-Geigy Corporation
    Inventors: Dieter Strasilla, Hubert Meindl, Laszlo Moldovanyi, Charles Fearnley
  • Patent number: 4454114
    Abstract: Novel copolymeric ammonium salts which are soluble or form microemulsions in aqueous surfactant systems and which can be obtained by water-in-oil emulsion polymerization or solution polymerization of a quaternary ammonium salt of the acrylic acid series and at least one other acrylic comonomer and reaction with an anionic optionally zwitterionic surfactand, ion exchange taking place, and has a molecular weight distribution of 10.sup.4 to 10.sup.9, the molecular weight of at least 5 percent by weight of the copolymer being 10.sup.7 to 10.sup.9, can be used as cosmetics, in particular as hair cosmetics, hair treated according to the invention having excellent ease of dry combing and, in particular, ease of wet combing.
    Type: Grant
    Filed: September 28, 1982
    Date of Patent: June 12, 1984
    Assignee: Ciba-Geigy Corporation
    Inventors: Dieter Strasilla, Hubert Meindl, Laszlo Moldovanyi, Charles Fearnley
  • Patent number: 4440744
    Abstract: Novel copolymeric ammonium salts which are soluble or form microemulsions in aqueous surfactant systems and which can be obtained by water-in-oil emulsion polymerization or solution polymerization of a quaternary ammonium salt of the acrylic acid series and at least one other acrylic comonomer and reaction with an anionic optionally zwitterionic surfactand, ion exchange taking place, and has a molecular weight distribution of 10.sup.4 to 10.sup.9, the molecular weight of at least 5 percent by weight of the copolymer being 10.sup.7 and 10.sup.9, can be used as cosmetics, in particular as hair cosmetics, hair treated according to the invention having excellent ease of dry combing and, in particular, ease of web combing.
    Type: Grant
    Filed: September 28, 1982
    Date of Patent: April 3, 1984
    Assignee: Ciba-Geigy Corporation
    Inventors: Dieter Strasilla, Hubert Meindl, Laszlo Moldovanyi, Charles Fearnley
  • Patent number: 4419344
    Abstract: Novel copolymeric ammonium salts which are soluble or form microemulsions in aqueous surfactant systems and which can be obtained by water-in-oil emulsion polymerization or solution polymerization of a quaternary ammonium salt of the acrylic acid series and at least one other acrylic comonomer and reaction with an anionic optionally zwitterionic surfactant, ion exchange taking place, and has a molecular weight distribution of 10.sup.4 to 10.sup.9, the molecular weight of at least 5 percent by weight of the copolymer being 10.sup.7 to 10.sup.9, can be used as cosmetics, in particular as hair cosmetics, hair treated according to the invention having excellent ease of dry combing and, in particular, ease of wet combing.
    Type: Grant
    Filed: July 27, 1981
    Date of Patent: December 6, 1983
    Assignee: Ciba-Geigy Corporation
    Inventors: Dieter Strasilla, Hubert Meindl, Laszlo Moldovanyi, Charles Fearnley
  • Patent number: 4393886
    Abstract: Mixtures which contain(a) polymeric ammonium salts which are soluble or give microemulsions in aqueous surfactant systems and which can be obtained by water-in-oil emulsion polymerization or solution polymerization of a quaternary ammonium salt of the acrylic acid series and optionally at least one other acrylic monomer, and which has a molecular weight distribution of 10.sup.4 to 10.sup.9, the molecular weight of at least 5 percent of the polymer being 10.sup.7 to 10.sup.9, and(b) a non-ionic surfactant or a surfactant with one positive and one negative charge within the molecule, can be used as cosmetics, in particular as hair cosmetics, the hair treated according to the invention having an excellent ease of dry combing and, in particular, wet combing.
    Type: Grant
    Filed: July 27, 1981
    Date of Patent: July 19, 1983
    Assignee: Ciba-Geigy Corporation
    Inventors: Dieter Strasilla, Laszlo Moldovanyi, Charles Fearnley, Hubert Meindl
  • Patent number: 4158662
    Abstract: Novel phthalimides substituted by alkenylamino groups, processes for their preparation and hot-curable mixtures which are stable on storage and contain at least one phthalimide according to the invention and a polyimide which has at least two groupings containing a C.dbd.C double bond are described. These hot-curable mixtures which are stable on storage are distinguished by improved processing characteristics, in particular a prolonged pot life, and are suitable for the production of various mouldings and especially also for the production of complicated castings.
    Type: Grant
    Filed: December 5, 1977
    Date of Patent: June 19, 1979
    Assignee: Ciba-Geigy Corporation
    Inventors: Roland Darms, Hubert Meindl
  • Patent number: 4140703
    Abstract: Novel phthalic acid derivatives, especially phthalic anhydrides, which are substituted by alkenylamino groups, and a process for their preparation are described. The novel phthalic acid derivatives are valuable intermediates for the preparation of corresponding esters, ester-amides or imides, which, in turn, are used in hot-curable mixtures which are stable on storage and have improved processing characteristics, in particular a prolonged pot life, for the production of mouldings of various types. Phthalic anhydrides substituted by alkenylamino groups, according to the invention, are also suitable as curing agents for epoxide resins. Products or materials cured therewith are distinguished by good mechanical and/or electrical properties.
    Type: Grant
    Filed: December 5, 1977
    Date of Patent: February 20, 1979
    Assignee: Ciba-Geigy Corporation
    Inventors: Roland Darms, Hubert Meindl
  • Patent number: 4127712
    Abstract: Novel phthalic acid diesters or ester-amides substituted by alkenylamino groups, processes for their preparation and hot-curable mixtures which are stable on storage and contain at least one phthalic acid diester according to the invention or a phthalic acid ester-amide according to the invention and a polyimide which has at least two groupings containing a C.dbd.C double bond are described. These hot-curable mixtures which are stable on storage are distinguished by improved processing characteristics, in particular a prolonged pot life, and are suitable for the production of various mouldings and especially also for the production of complicated castings.
    Type: Grant
    Filed: December 5, 1977
    Date of Patent: November 28, 1978
    Assignee: Ciba-Geigy Corporation
    Inventors: Roland Darms, Hubert Meindl
  • Patent number: 4049656
    Abstract: Fibre-reactive anthraquinone dyestuffs are disclosed which are of the formula ##STR1## wherein X and Y represent independently of each other hydrogen or SO.sub.3.sup.- M.sup.+,Z represents a fibre-reactive radical bound to -NH- directly or via a bridging member selected from carbonyl, sulphonyl or carbonylimino; and forming with the substrate especially polyamide or cellulose at least one covalent bond, andM.sup.+ represents one equivalent of a colorless cation.These dyestuffs are useful for the pad-dyeing and printing of organic materials, especially materials made from polyamide or cellulose.The resulting dyeings are distinguished by excellent fastness to wet processing such as, in particular to washing, water, perspiration, alkali and rubbing, as well as by a good fastness to light.
    Type: Grant
    Filed: July 7, 1975
    Date of Patent: September 20, 1977
    Assignee: Ciba-Geigy AG
    Inventors: Peter Hindermann, Hubert Meindl