Patents by Inventor Ulrich Riebeling
Ulrich Riebeling 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: 8097124Abstract: Aqueous alkyl ketene dimer dispersions which comprise at least 15% by weight of an alkyl ketene dimer and at least one water-soluble cationic starch, aluminum sulfate and at least one condensate of naphthalenesulfonic acid and formaldehyde or lignin sulfonic acid or in each case salts thereof, the dispersions comprising, based in each case on alkyl ketene dimer, from 2 to 50% by weight of aluminum sulfate, and in which the dispersions additionally comprise from 0.1 to 5% by weight of a saturated carboxylic acid having 1 to 10 carbon atoms, benzenesulfonic acid, p-toluenesulfonic acid and/or a mineral acid at an aluminum sulfate content of from 2 to 15% by weight, and the use of the dispersions as engine size and surface size for paper and paper products.Type: GrantFiled: June 1, 2007Date of Patent: January 17, 2012Assignee: BASF AktiengesellschaftInventors: Christoph Hamers, Andreas Brockmeyer, Markus Schmid, Klaus Lorenz, Ulrich Riebeling
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Patent number: 7709052Abstract: Alkyldiketene-containing aqueous polymer dispersions which are obtainable by miniemulsion polymerization of hydrophobic monoethylenically unsaturated monomers in the presence of alkyldiketenes, processes for the preparation of such polymer dispersions and the use of the thus obtainable dispersions as sizes for paper or as water repellents for leather, natural and/or manmade fibers and textiles.Type: GrantFiled: October 9, 2003Date of Patent: May 4, 2010Assignee: BASF AktiengesellschaftInventors: Rainer Dyllick-Brenzinger, Roland Ettl, Franca Tiarks, Ulrich Riebeling
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Publication number: 20090139677Abstract: Aqueous alkyl ketene dimer dispersions which comprise at least 15% by weight of an alkyl ketene dimer and at least one water-soluble cationic starch, aluminum sulfate and at least one condensate of naphthalenesulfonic acid and formaldehyde or lignin sulfonic acid or in each case salts thereof, the dispersions comprising, based in each case on alkyl ketene dimer, from 2 to 50% by weight of aluminum sulfate, and in which the dispersions additionally comprise from 0.1 to 5% by weight of a saturated carboxylic acid having 1 to 10 carbon atoms, benzenesulfonic acid, p-toluenesulfonic acid and/or a mineral acid at an aluminum sulfate content of from 2 to 15% by weight, and the use of the dispersions as engine size and surface size for paper and paper products.Type: ApplicationFiled: June 1, 2007Publication date: June 4, 2009Applicant: BASF SEInventors: Christoph Hamers, Andreas Brockmeyer, Markus Schmid, Klaus Lorenz, Ulrich Riebeling
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Publication number: 20060009571Abstract: Alkyldiketene-containing aqueous polymer dispersions which are obtainable by miniemulsion polymerization of hydrophobic monoethylenically unsaturated monomers in the presence of alkyldiketenes, processes for the preparation of such polymer dispersions and the use of the thus obtainable dispersions as sizes for paper or as water repellents for leather, natural and/or manmade fibers and textiles.Type: ApplicationFiled: October 9, 2003Publication date: January 12, 2006Applicant: BASF AktiengesellschaftInventors: Rainer Dyllick-Brenzinger, Roland Ettl, Franca Tiarks, Ulrich Riebeling
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Patent number: 5672392Abstract: A process for the preparation of recording materials for inkjet printers by applying aqueous coating compositions to one or both sides of a sheet of paper which has been treated with size, where the coating compositions contain from 20 to 200 g/l of starch and from 1 to 50 g/l of a copolymer which is obtainable by emulsion copolymerization of 100 parts by weight of a monomer mixture comprising(a) from 10 to 65 parts by weight of styrene, .alpha.-methylstyrene, acrylonitrile and/or methacrylonitrile,(b) from 30 to 85 parts by weight of acrylic and/or methacrylic esters of alcohols having 1 to 18 carbon atoms,(c) from 5 to 25 parts by weight of monomers containing tertiary and/or quaternary amino groups, and(d) from 0 to 20 parts by weight of other monoethylenically unsaturated monomersin an aqueous medium in the presence of from 12 to 300% by weight, based on the monomers, of at least one natural or synthetic protective colloid.Type: GrantFiled: May 8, 1996Date of Patent: September 30, 1997Assignee: BASF AktiengesellschaftInventors: Arnold De Clercq, Lothar Hohr, Ulrich Riebeling
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Patent number: 5498648Abstract: Paper size mixtures which are prepared by mixing an aqueous suspension of a digested cationic starch with a finely divided, aqueous polymer dispersion which is the paper size and emulsifying the C.sub.14 -C.sub.22 -alkyldiketene in this mixture at not less than 70.degree. C. are used for engine and surface sizing of the paper.Type: GrantFiled: March 1, 1995Date of Patent: March 12, 1996Assignee: BASF AktiengesellschaftInventors: Arnold de Clercq, Roland Ettl, Carlos A. Goncalves, Lothar Hoehr, Andreas Hohmann, Ulrich Riebeling
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Patent number: 5266165Abstract: 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: GrantFiled: October 1, 1992Date of Patent: November 30, 1993Assignee: BASF AktiengesellschaftInventors: Arnold DeClercq, Walter Denzinger, Norbert Greif, Heinrich Hartmann, Knut Oppenlaender, Ulrich Riebeling
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Patent number: 5154763Abstract: Stabilized aqueous C.sub.14 -C.sub.22 -alkyldiketene emulsions containing, as essential components:(a) from 10 to 60% w/w of at least one C.sub.14 -C.sub.22 -alkyldiketene,(b) from 1 to 10% w/w of at least one protective colloid and(c) from 0.1 to 20% w/w of at least one ester of formula I ##STR1## in which R.sup.1 and R.sup.2 each denote C.sub.14 -C.sub.22 -alkyl, R.sup.1 differing in this case from R.sup.2 by at least 4 carbon atoms in the alkyl chain, and/or the same or different C.sub.14 -C.sub.22 -alkenyl groups, or at least one ester of the formula R.sup.3 --O--CO--O--R.sup.4 (II), in which R.sup.3 and R.sup.4 are alkyl or alkenyl radicals of from 2 to 22 carbon atoms or at least one urethane of formula III ##STR2## in which R.sup.5, R.sup.6 and R.sup.7 are the same or different alkyl or alkenyl radicals of from 2 to 22 carbon atoms and one of the substituents R.sup.5, R.sup.6 and R.sup.Type: GrantFiled: January 9, 1991Date of Patent: October 13, 1992Assignee: BASF AktiengesellschaftInventors: Peter Ksoll, Erwin Hahn, Peter Wittmer, Andreas Hohmann, Arnold De Clercq, Ulrich Riebeling
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Patent number: 4908240Abstract: The printability of paper is improved by applying an aqueous coating agent consisting of(a) 100 parts by weight of a finely divided pigment,(b) from 5 to 70 parts by weight, based on solids, of a cationic aqueous polymer dispersion of a paper size and(c) from 0.01 to 10 parts by weight of a surfactant which interferes with the formation of the surface size and/or of a polymeric dispersantin an amount of from 0.5 to 4 g/m.sup.2 to one or both surfaces of the paper and drying the coated paper.Type: GrantFiled: September 15, 1988Date of Patent: March 13, 1990Assignee: BASF AktiengesellschaftInventors: Werner Auhorn, Hans-Juergen Degen, Lothar Hoehr, Ulrich Riebeling
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Patent number: 4855343Abstract: Sizes for paper are based on finely divided aqueous dispersions of copolymers which are obtainable by copolymerization of from 10 to 56 parts by weight of a monomer mixture of(a) from 20 to 65% by weight of (meth)acrylonitrile,(b) from 35 to 80% by weight of one or more acrylates of monohydric, saturated C.sub.3 -C.sub.8 -alcohols and(c) from 0 to 10% by weight of other ethylenically unsaturated copolymerizable monomers by an emulsion polymerization method in 100 parts by weight of an aqueous solution of from 1.7 to 25% by weight of a degraded starch having a viscosity .eta..sub.i of from 0.12 to 0.50 dl/g, at from 40.degree. to 100.degree. C. in the presence of a peroxide-containing initiator.Type: GrantFiled: July 16, 1987Date of Patent: August 8, 1989Assignee: BASF AktiengesellschaftInventors: Hans-Juergen Degen, Fritz Reichel, Ulrich Riebeling, Lothar Hoehr
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Patent number: 4835212Abstract: Sizing agents for paper are based on finely divided aqueous dispersions of copolymers obtainable by copolymerizing from 40 to 140 parts by weight of a monomer mixture of(a) from 20 to 65% by weight of (meth)acrylonitrile,(b) from 35 to 80% by weight of one or more acrylates of monohydric saturated C.sub.3 -C.sub.8 -alcohols and(c) from 0 to 10% by weight of other ethylenically unsaturated copolymerizable monomers,the weight percentages (a), (b) and (c) always adding up to 100, in the manner of an emulsion polymerization in 100 parts by weight of an aqueous solution containing in solution from 2.7 to 15% by weight of a degraded starch having a viscosity n.sub.i from 0.04 to less than 0.12 dl/g at from 40.degree. to 100.degree. C. in the presence of a peroxide initiator.Type: GrantFiled: January 20, 1988Date of Patent: May 30, 1989Assignee: BASF AktiengesellschaftInventors: Hans-Juergen Degen, Fritz Reichel, Ulrich Riebeling, Lothar Hoehr
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Patent number: 4770743Abstract: Engine sizes for paper are based on aqueous emulsions of C.sub.14 -C.sub.20 -alkyl diketenes and cationic copolymers of(a) from 40 to 99% by weight of acrylamide and/or methacrylamide,(b) from 1 to 40% by weight of an unsubstituted or substituted N-vinylimidazoline and(c) from 0 to 30% by weight of an unsubstituted or substituted N-vinylimidazole.Type: GrantFiled: July 10, 1987Date of Patent: September 13, 1988Assignee: BASF AktiengesellschaftInventors: Volkmar Weberndoerfer, Enrique Freudenberg, Hans-Juergen Degen, Ulrich Riebeling