Patents by Inventor Norbert Greif

Norbert Greif 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: 6033442
    Abstract: The use of aqueous solutions or dispersions of copolymers composed ofA) from 5 to 95 mol % of ethylenically unsaturated mono- or dicarboxylic acids having 3 to 10 carbons, their anhydrides, their alkali metal, alkaline earth metal or ammonium salts, or mixtures thereof,B) from 5 to 95 mol % of ethylenically unsaturated acetals, ketals or orthocarboxylic esters of the formula I ##STR1## where R.sup.1 to R.sup.12 independently are hydrogen or an organic radical anda to d independently are 0 or 1, andC) from 0 to 70 mol % of other copolymerizable monomersor their hydrolysis products or polymer-analogous reaction products, as tanning agents for the self-tanning, pretanning or assist tanning of leather pelts and skin pelts or for the retanning of leather and skins.
    Type: Grant
    Filed: June 10, 1998
    Date of Patent: March 7, 2000
    Assignee: BASF Aktiengesellschaft
    Inventors: Walter Denzinger, Axel Kistenmacher, Gerhard Wolf, Michael Kneip, Norbert Greif, Knut Oppenlander
  • Patent number: 6007801
    Abstract: A cosmetic composition comprising a carboxyl-containing polysiloxane and a cosmetically acceptable auxiliary; in which the carboxyls are amidated by a compound selected from the group consisting of 2-amino-2-methyl-1-propanol, ethanolamine, morpholine and triethanolamine, and said amidation is up to 50 mol % of the carboxyls.
    Type: Grant
    Filed: September 23, 1997
    Date of Patent: December 28, 1999
    Assignee: BASF Aktiengesellschaft
    Inventors: Peter Hossel, Michael Kneip, Norbert Greif
  • Patent number: 5798147
    Abstract: A process for coating or printing substrates with a coating or printing composition comprises applying a polymerizable material containing liquid-crystalline, polymerizable monomers which carryat least two polymerizable groups for coating andat least one polymerizable group for printing,to the substrate, and subsequently carrying out the polymerization, where the coating composition or the printing composition comprisesa.sub.1) a chiral liquid-crystalline monomer andb) a polymeric binder and/or monomeric compounds which can be converted into the polymeric binder by polymerization, or, in the case of emulsion coatings and printing inks, a dispersion auxiliary d),or the coating composition or the printing composition comprisesa.sub.
    Type: Grant
    Filed: May 23, 1997
    Date of Patent: August 25, 1998
    Assignee: BASF Aktiengesellschaft
    Inventors: Erich Beck, Frank Meyer, Ulrich Poth, Karl Siemensmeyer, Claudia Sierakowski, Norbert Greif, Werner Ostertag, Michael Zirnstein, Reinhold Leyrer, Ekkehard Jahns, Karl-Heinz Etzbach, Peter Schuhmacher
  • Patent number: 5527360
    Abstract: A process for fatliquoring, filling and hydrophobicizing leathers and furs, comprises using ene adducts of maleic anhydride with unsaturated fatty acids of from 12 to 24 carbon atoms or their C.sub.1 - to C.sub.20 -alkyl or C.sub.2 - to C.sub.20 -alkenylesters, triglycerides, amides, mono- or di(C.sub.2 - to C.sub.4 -alkanol)amides, mono- or dipolyetheramides or polyetheresters, or ene adducts partially or completely derivatized by reaction with amines or alcohols to form amides or esters, respectively.
    Type: Grant
    Filed: April 21, 1995
    Date of Patent: June 18, 1996
    Assignee: BASF Aktiengesellschaft
    Inventors: Hermann Birkhofer, Peter Danisch, Norbert Greif, Knut Oppenlaender
  • Patent number: 5433752
    Abstract: Products useful for fatliquoring and filling leather and fur skins are obtained on reactingA) homo- or copolymers based on monoethylenically unsaturated dicarboxylic anhydrides and obtainable by free-radically initiated polymerization ofa) from 30 to 100 mol % of one or more monoethylenically unsaturated dicarboxylic anhydrides of from 4 to 10 carbon atoms,b) from 0 to 70 mol % of one or more aromatic vinyl compounds of the general formula I ##STR1## where R.sup.1, R.sup.2 and R.sup.3 are each hydrogen, methyl or ethyl and k is 1 or 2,(c) from 0 to 70 mol % of one or more vinyl esters of C.sub.1 - to C.sub.8 -carboxylic acids,(d) from 0 to 50 mol % of one or more C.sub.2 - to C.sub.6 -olefins, and(e) from 0 to 30 mol % of one or more monoethylenically unsaturated C.sub.3 - to C.sub.5 -carboxylic acids,which mixture of monomers (a) to (e) may additionally contain up to 10% by weight of further copolymerizable monomers, withB) amines of the general formula R.sub.4 R.sub.5 NH, where R.sup.4 is hydrogen, C.sub.
    Type: Grant
    Filed: August 26, 1994
    Date of Patent: July 18, 1995
    Assignee: BASF Aktiengesellschaft
    Inventors: Hermann Birkhofer, Peter Danisch, Walter Denzinger, Heinrich Hartmann, Norbert Greif, Knut Oppenlaender
  • Patent number: 5420207
    Abstract: Polyisobutylsuccinic anhydrides having an average molar ratio of succinic anhydride groups to polyisobutyl groups of from 1.05:1 to 1.3:1 are prepared by reacting polyisobutene having an average molecular weight M.sub.w of 600-5000 and containing at least 70% of terminal double bonds with maleic anhydride in a molar ratio of maleic anhydride to polyisobutene of from 1.05:1 to 3:1 at 160.degree.-210.degree. C. in the presence of a catalytic amount of a dicarboxylic acid of 2 to 6 carbon atoms.
    Type: Grant
    Filed: June 14, 1994
    Date of Patent: May 30, 1995
    Assignee: BASF Aktiengesellschaft
    Inventors: Norbert Greif, Knut Oppenlaender
  • Patent number: 5286263
    Abstract: Copolymers which are obtainable by free radical copolymerization of (a) C.sub.8 -C.sub.40 -alkyl vinyl ethers, if necessary as a mixture with not more than 50 mol % of C.sub.8 -C.sub.40 -monoolefins, with (b) ethylenically unsaturated C.sub.4 -C.sub.8 -dicarboxylic anhydrides at from 80.degree. to 300.degree. C. to give copolymers having molecular weights of from 500 to 20,000 g/mol, subsequent solvolysis of the anhydride groups of the copolymers and partial or complete neutralization of the carboxyl groups formed during the solvolysis, in an aqueous medium by means of a base, and which are present in the form of aqueous dispersions or solutions, are used as agents for imparting water repellency to leathers and skins.
    Type: Grant
    Filed: February 10, 1992
    Date of Patent: February 15, 1994
    Assignee: BASF Aktiengesellschaft
    Inventors: Ortwin Schaffer, Herbert Bay, Karl Stork, Norbert Greif, Knut Oppenlaender, Walter Denzinger, Heinrich Hartmann
  • Patent number: 5279613
    Abstract: Copolymers which are obtainable by free radical copolymerization of (a) C.sub.8 --C.sub.40 -monoolefins with (b) ethylenically unsaturated C.sub.4 -C.sub.8 -dicarboxylic anhydrides by mass polymerization at from 80.degree. to 300.degree. C. to give copolymers having molecular weights of from 500 to 20,000 g/mol, subsequent solvolysis of the anhydride groups of the copolymers and partial or complete neutralization of the carboxyl groups formed during the solvolysis, in an aqueous medium by means of a base, and which are present in the form of aqueous dispersions or solutions, are used as agents for rendering leathers and skins water-repellent.
    Type: Grant
    Filed: February 5, 1992
    Date of Patent: January 18, 1994
    Assignee: BASF Aktiengesellschaft
    Inventors: Ortwin Schaffer, Herbert Bay, Karl Stork, Norbert Greif, Knut Oppenlaender, Walter Denzinger, Heinrich Hartmann
  • Patent number: 5266165
    Abstract: Abstract of the Disclosure: Copolymers of (a) C.sub.12 - to C.sub.24 -monoolefins and (b) maleic anhydride or itaconic anhydride, having molecular weights of from 800 to 100,000 g/mol, in the form of partially or completely neutralized semiamides with morpholine, in aqueous solution or dispersion, can be used as sizes for paper.
    Type: Grant
    Filed: October 1, 1992
    Date of Patent: November 30, 1993
    Assignee: BASF Aktiengesellschaft
    Inventors: Arnold DeClercq, Walter Denzinger, Norbert Greif, Heinrich Hartmann, Knut Oppenlaender, Ulrich Riebeling
  • Patent number: 5124181
    Abstract: Copolymers which containa) from 50 to 90% by weight of C.sub.8 -C.sub.40 -alkyl methacrylates, vinyl esters of C.sub.8 -C.sub.40 -carboxylic acids or mixtures thereof andb) from 10 to 50% by weight of monoethylenically unsaturated C.sub.3 -C.sub.12 -carboxylic acids, monoethylenically unsaturated dicarboxylic anhydrides, monoesters or monoamides of monoethylenically unsaturated C.sub.4 -C.sub.12 -dicarboxylic acids, amides of C.sub.3 -C.sub.12 -monocarboxylic acids or mixtures thereofas copolymerized units and have molecular masses of from 500 to 30,000 are used in at least partially neutralized form in aqueous solution or dispersion for making leather and furs water repellent.
    Type: Grant
    Filed: September 14, 1990
    Date of Patent: June 23, 1992
    Assignee: BASF Aktiengesellschaft
    Inventors: Ortwin Schaffer, Herbert Bay, Karl Stork, Norbert Greif, Knut Oppenlaender, Walter Denzinger, Heinrich Hartmann
  • Patent number: 5009670
    Abstract: Fuels for gasoline engines contain small amounts of copolymers of alkyl (meth)-acrylates where the alkyl radical is of 8 to 40 carbon atoms and/or vinyl esters of carboxylic acids of 8 to 40 carbon atoms and monoethylenically unsaturated mono- and/or dicarboxylic acids of 3 to 12 carbon atoms and/or monoethylenically unsaturated compounds having sulfo and/or phosphonic acid groups, having a total molecular weight of from 500 to 20,000 g per mole, some or all of the carboxyl, sulfo and phosphonic acid groups of the copolymers having been reacted with an alkali or alkaline earth with formation of the alkali metla salts or alkaline earth metal salts and the remainder of the acid groups having been reacted with ammonia and/or amines of not more than 50 carbon atoms to give the corresponding amide groups and/or ammonium salts.
    Type: Grant
    Filed: May 16, 1989
    Date of Patent: April 23, 1991
    Assignee: BASF Aktiengesellschaft
    Inventors: Franz-Dieter Martischius, Hans-Henning Vogel, Norbert Greif, Knut Oppenlaender, Walter Denzinger, Heinrich Hartmann
  • Patent number: 4978780
    Abstract: A process for the preparation of ether sulfonates or polyglycol ether sulfonates by reacting an organic alcoholic or phenolic compound or the corresponding alkoxylate in aqueous solution with vinyl sulfonate in the presence of from 0.1 to 3.0% by weight of an alkaline catalyst and, if required, additionally in the presence of a phase-transfer catalyst, and ether sulfonates or polyglycol ether sulfonates prepared by this process and of the general formulaR--O(C.sub.n H.sub.2n O).sub.z --CH.sub.2 CH.sub.2 SO.sub.3 Xwhere R is H or an aliphatic or aromatic hydrocarbon radical (which may contain nitrogen as a heteroatom) of 1 to 30 carbon atoms, n is from 2 to 30, z is from 0 to 300 and X is an alkali metal.
    Type: Grant
    Filed: September 11, 1989
    Date of Patent: December 18, 1990
    Assignee: BASF Aktiengesellschaft
    Inventors: Rolf Fikentscher, Norbert Greif, Knut Oppenlaender, Karl Stork
  • Patent number: 4959077
    Abstract: A fuel for gasoline engines contains a small amount of a copolymer of an olefin of from 2 to 40 carbon atoms and/or a cycloolefin of from 3 to 10 carbon atoms with maleic anhydride and/or a copolymer of an alkyl vinyl ether of from 1 to 30 carbon atoms in the alkyl group and/or a cycloalkyl vinyl ether of from 3 to 10 carbon atoms in the alkyl group with maleic anhydride and/or a copolymer of an alkyl vinyl ether of from 1 to 30 carbon atoms in the alkyl group and/or a cycloalkyl vinyl ether of from 3 to 10 carbon atoms in the alkyl group and an olefin of from 2 to 40 carbon atoms and/or a cycloolefin of from 3 to 10 carbon atoms with maleic anhydride having a total molecular weight of from 500 to 20,000 g per mole, the carboxyl groups on the copolymer having been wholly or partly converted with an alkali metal or alkaline earth metal to form an alkali metal or alkaline earth metal salt and the remaining carboxyl groups having been converted with an alcohol and/or an amine of up to 50 carbon atom into the cor
    Type: Grant
    Filed: September 12, 1988
    Date of Patent: September 25, 1990
    Assignee: BASF Aktiengesellschaft
    Inventors: Franz-Dieter Martischius, Hans P. Rath, Hans-Henning Vogel, Norbert Greif, Knut Oppenlaender, Walter Denzinger, Heinrich Hartmann
  • Patent number: 4767707
    Abstract: Enzymes are immobilized by mixing the following components with one another in aqueous solution:(a) an enzyme or a dispersed microorganism,(b) a water-soluble glycidyl ether, prepared by subjecting from 1 to 30 equivalents of an epoxide of the formula I ##STR1## where R.sup.1, R.sup.2 and R.sup.3 are each hydrogen, methyl or ethyl, to an addition reaction with 1 equivalent (based on OH groups) of a polyfunctional alcohol of 2 to 6 carbon atoms or of a mono- or disaccharide to produce an adduct, reacting the adduct with epichlorohydrin and, if required, then carrying out cyclization to give the epoxide, and(c) a water-soluble amine possessing two or more NH groups, if necessary in a partially neutralized form,and allowing the mixture thus obtained to gel.
    Type: Grant
    Filed: July 25, 1986
    Date of Patent: August 30, 1988
    Assignee: BASF Aktiengesellschaft
    Inventors: Stefan Marcinowski, Axel Sanner, Chung-Ji Tschang, Wolfgang Ladner, Norbert Greif
  • Patent number: 4734535
    Abstract: Aliphatic chlorine compounds of the formulaX--R.sup.1 --Cl Iwhere R.sup.1 is alkylene which may be interrupted by one or more oxygen atoms and which may be substituted by halogen, alkyl or aryl, and X is hydrogen, chlorine or OR.sup.2, where R.sup.2 is alkyl, cycloalkyl, aryl or aralkyl, are prepared by decarboxylating chloroformic acid esters or diesters at elevated temperatures by decarboxylating in the presence of a quaternary ammonium or phosphonium salt as catalyst.
    Type: Grant
    Filed: March 25, 1987
    Date of Patent: March 29, 1988
    Assignee: BASF Aktiengesellschaft
    Inventors: Norbert Greif, Knut Oppenlaender
  • Patent number: 4496439
    Abstract: In an aqueous acidic plating bath for the electrolytic deposition of zinc, which contains conventional conductive salts, brighteners and surfactants, one of the surfactants is a surfactant of the formula I ##STR1## where R.sup.1 is C.sub.4 -C.sub.20 -alkyl, R.sup.2 is identical to R.sup.1 or is hydrogen, X and Y are each a radical --SO.sub.3 H, where the hydrogen atom can be replaced by an alkali metal or alkaline earth metal atom or by one equivalent of zinc and n is an integer from 5 to 50.
    Type: Grant
    Filed: December 23, 1983
    Date of Patent: January 29, 1985
    Assignee: BASF Aktiengesellschaft
    Inventors: Norbert Greif, Knut Oppenlaender, Albert Hettche, Christos Vamvakaris
  • Patent number: 4375565
    Abstract: The subject invention relates to compositions of matter having the following structural formula: ##STR1## In this formula, R.sup.1 represents a C.sub.8 -C.sub.20 alkyl radical, R.sup.2 stands for a C.sub.1 -C.sub.5 alkyl radical, and n is a number, 4 through 15. These compounds are low foaming and have acceptable biodegradability. They are particularly useful in the formulation of automatic dishwashing detergents.
    Type: Grant
    Filed: October 15, 1981
    Date of Patent: March 1, 1983
    Assignee: BASF Aktiengesellschaft
    Inventors: Norbert Greif, Erhard Klahr, Wolfgang Trieselt
  • Patent number: 4239491
    Abstract: An improved process for dyeing or printing water-swellable cellulosic fibers and mixtures of said cellulosic fibers with synthetic fibers by contacting the fibers throughout with a dye liquor or print paste which contains, as essential ingredients, water in an amount sufficient to swell the cellulosic fibers, a water-insoluble disperse dye and a water-soluble solvent which maintains swelling of the cellulose if water is removed and which is a solvent for the disperse dye, and heating the contacted fibers to effect fixation of the dye, the improvement comprising using as water-soluble solvent a mixture of(a) polyethylene oxide, a block copolymer of ethylene oxide and propylene oxide or an ether, ester or carbamate derivative thereof and(b) a polyoxyethylated amine.
    Type: Grant
    Filed: December 12, 1979
    Date of Patent: December 16, 1980
    Assignee: BASF Aktiengesellschaft
    Inventors: Ulrich Baumgarte, Knut Oppenlaender, Harald Schlueter, Harro Petersen, Norbert Greif, Rainer Strickler
  • Patent number: 4229174
    Abstract: A process for dyeing textile materials, containing natural and/or synthetic fibers, in an aqueous liquor by means of dyes which are sparingly soluble or insoluble in water, in the presence of dyeing assistants, wherein the dispersant used is a water-soluble sulfonic acid which is derived from a random copolymer of olefins of 3 to 6 carbon atoms and styrene and/or substituted styrenes and/or their alkali metal salts or ammonium salts.
    Type: Grant
    Filed: December 27, 1978
    Date of Patent: October 21, 1980
    Assignee: BASF Aktiengesellschaft
    Inventors: Paul Boerzel, Peter Freyberg, Norbert Greif, Rudi Widder
  • Patent number: 4200733
    Abstract: Iodine-containing block copolymers which contain from 5 to 25% by weight of bonded iodine, and which are based on iodine-free compounds of the formula IR(AB).sub.z Iwhereif z=1, R is hydrogen or a C.sub.1 -C.sub.18 -aliphatic hydrocarbon radical,if z.noteq.1, R is a z-valent aliphatic hydrocarbon radical of 2 to 8 carbon atoms, which may or may not carry up to z ethylene oxide units,z is from 1 to 6,A is a polymer or copolymer block of from 4 to 100 1,4-butylene oxide units and from 0 to 25 ethylene oxide units andB is a polymer or copolymer block of from 0 to 50 1,4-butylene oxide units and from 1 to 100 ethylene oxide units, the proportion of 1,4-butylene oxide being >50 mole % in A and <50 mole % in B.
    Type: Grant
    Filed: March 29, 1979
    Date of Patent: April 29, 1980
    Assignee: BASF Aktiengesellschaft
    Inventors: Johannes Perner, Norbert Greif, Rolf Fikentscher, Paul Diessel