Patents by Inventor Peter Danisch
Peter Danisch 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: 10870086Abstract: Disclosed is a method and apparatus for manufacturing a continuous web of polymeric membrane and for continuous downstream processing of said web. The apparatus (10) comprises: a casting station (20) for casting the continuous web (M); a carrier (24) for carrying the web downstream; a membrane drier (30) downstream of the carrier, for drying the web; and a brushing station (40) downstream of the drier for brushing the web. Said drier is located immediately downstream of the carrier, and upstream of said brushing station. The apparatus (10) further includes an additional drying station (50) downstream of the brushing station (40). Brushing after drying retains more surfactant in the membrane which is useful for certain applications. In addition, initial drying eliminates virtually all solvents from the membrane, but leaves some non-solvent (e.g. water) within it, which in turn fixes the surfactant on the nitrocellulose fibers, which improves significantly the consistency and reproducibility of the membrane.Type: GrantFiled: March 24, 2016Date of Patent: December 22, 2020Assignee: Global Life Sciences Solutions Germany GmbHInventors: Marcel Thieme, Klaus Hochleitner, Suzana Kiel, Alexander Schenk, Wolfgang Thamm, Daniela Katarzynski, Georg Peter Danisch
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Publication number: 20180104655Abstract: Disclosed is a method and apparatus for manufacturing a continuous web of polymeric membrane and for continuous downstream processing of said web. The apparatus (10) comprises: a casting station (20) for casting the continuous web (M); a carrier (24) for carrying the web downstream; a membrane drier (30) downstream of the carrier, for drying the web; and a brushing station (40) downstream of the drier for brushing the web. Said drier is located immediately downstream of the carrier, and upstream of said brushing station. The apparatus (10) further includes an additional drying station (50) downstream of the brushing station (40). Brushing after drying retains more surfactant in the membrane which is useful for certain applications. In addition, initial drying eliminates virtually all solvents from the membrane, but leaves some non-solvent (e.g. water) within it, which in turn fixes the surfactant on the nitrocellulose fibers, which improves significantly the consistency and reproducibility of the membrane.Type: ApplicationFiled: March 24, 2016Publication date: April 19, 2018Inventors: Marcel Thieme, Klaus Hochleitner, Suzana Kiel, Alexander Schenk, Wolfgang Thamm, Daniela Katarzynski, Georg Peter Danisch
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Patent number: 8771374Abstract: Process for the production of leather, wherein pelts, pickled pelts or semifinished products are treated with at least one copolymer (A) which is obtainable by copolymerization of the following comonomers: (a) at least one ethylenically unsaturated C3-C10-carboxylic acid or at least one ethylenically unsaturated C4-C10-dicarboxylic acid or its anhydride, (b) at least one (meth)acrylate of an ?-branched C3-C10-alkanol, (c) at least one (meth)acrylate of a primary C4-C20-alkanol.Type: GrantFiled: May 24, 2012Date of Patent: July 8, 2014Assignee: BASF SEInventors: Markus Brym, Audrey Renoncourt, Stephan Huffer, Gerhard Wolf, Ulrike Mahn, Edward Bohres, Petra Schocker, Hubertus Peter Bell, Peter Danisch
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Patent number: 8642185Abstract: A process for producing leather comprises treating part-processed hides, crust leathers or pelts with at least one aqueous float comprising (A) at least one amphiphilic organic copolymer, (B) at least one silicone compound having at least one carboxylic acid group or at least one carboxylic anhydride group per molecule, (C) at least one surface-active compound selected from emulsifiers having at least one phosphorus atom per molecule, (D) at least one surface-active compound selected from N-acylated amino acids, (E) at least one surface-active compound comprising at least one C10-C30-alkyl radical, branched or unbranched, or at least one polyisobutene moiety, and at least one ionic or aqueous-ionizable group, other than amphiphilic copolymer (A) and surface-active compound (C), and which is free of waxes and oils.Type: GrantFiled: November 30, 2011Date of Patent: February 4, 2014Assignee: BASF SEInventors: Edward Bohres, Peter Danisch
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Publication number: 20120227188Abstract: Process for the production of leather, wherein pelts, pickled pelts or semifinished products are treated with at least one copolymer (A) which is obtainable by copolymerization of the following comonomers: (a) at least one ethylenically unsaturated C3-C10-carboxylic acid or at least one ethylenically unsaturated C4-C10-dicarboxylic acid or its anhydride, (b) at least one (meth)acrylate of an ?-branched C3-C10-alkanol, (c) at least one (meth)acrylate of a primary C4-C20-alkanol.Type: ApplicationFiled: May 24, 2012Publication date: September 13, 2012Applicant: BASF SEInventors: MARKUS BRYM, Audrey Renoncourt, Stephan Huffer, Gerhard Wolf, Ulrike Mahn, Edward Bohres, Petra Schöcker, Hubertus Peter Bell, Peter Danisch
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Publication number: 20120141815Abstract: A process for producing leather comprises treating part-processed hides, crust leathers or pelts with at least one aqueous float comprising (A) at least one amphiphilic organic copolymer, (B) at least one silicone compound having at least one carboxylic acid group or at least one carboxylic anhydride group per molecule, (C) at least one surface-active compound selected from emulsifiers having at least one phosphorus atom per molecule, (D) at least one surface-active compound selected from N-acylated amino acids, (E) at least one surface-active compound comprising at least one C10-C30-alkyl radical, branched or unbranched, or at least one polyisobutene moiety, and at least one ionic or aqueous-ionizable group, other than amphiphilic copolymer (A) and surface-active compound (C), and which is free of waxes and oils.Type: ApplicationFiled: November 30, 2011Publication date: June 7, 2012Applicant: BASF SEInventors: Edward BOHRES, Peter Danisch
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Publication number: 20100162490Abstract: Process for the production of leather, wherein pelts, pickled pelts or semifinished products are treated with at least one copolymer (A) which is obtainable by copolymerization of the following comonomers: (a) at least one ethylenically unsaturated C3-C10-carboxylic acid or at least one ethylenically unsaturated C4-C10-dicarboxylic acid or its anhydride, (b) at least one (meth)acrylate of an ?-branched C3-C10-alkanol, (c) at least one (meth)acrylate of a primary C4-C20-alkanol.Type: ApplicationFiled: September 3, 2008Publication date: July 1, 2010Applicant: BASF SEInventors: Markus Brym, Audrey Renoncourt, Stephan Huffer, Gerhard Wolf, Ulrike Mahn, Edward Bohres, Petra Schocker, Hubertus Peter Bell, Peter Danisch
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Publication number: 20100154128Abstract: A process for the production of leather, wherein tanned animal hides are treated in step (A) with an aqueous liquor which comprises (a) at least one copolymer obtainable by copolymerization of (a1) at least one ethylenically unsaturated C4-C8-dicarboxylic acid or at least one derivative of an ethylenically unsaturated C4-C8-dicarboxylic acid and (a2) at least one C8-C100-?-olefin and, if appropriate, hydrolysis and/or at least partial neutralization, (b) at least one paraffin which is liquid at room temperature, (c) at least one synthetic nonionic emulsifier, the aqueous liquor being free of silicones, and furthermore silicone-free aqueous formulations and their use.Type: ApplicationFiled: June 22, 2006Publication date: June 24, 2010Applicant: Basf Aktiengesellschaft Patents, Trademarks and LicensesInventors: Susanne Petrovic, Andreas Seitz, Peter Danisch, Hartmut Bethge, Werner Janson, Hubertus Peter Bell
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Publication number: 20070192962Abstract: Aqueous compositions containing alkoxylated alcohols and hydrophobic components, method for the production and use thereof Compositions comprising, as components, a) at least two alkoxylated alcohols, b) at least one hydrophobic component selected from natural, modified natural and synthetic hydrophobic substances, c) at least 20% by weight, based on the total weight of the composition, of water, wherein the compositions have a mean hydrodynamic radius in the range from 1 to 200 nm, determined by dynamic light scattering.Type: ApplicationFiled: May 13, 2005Publication date: August 23, 2007Applicant: BASF AktiengesellschaftInventors: Rainer Erhardt, Gunther Pabst, Gunter Oetter, Andreas Seitz, Peter Danisch
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Publication number: 20070149696Abstract: Aqueous dispersions of copolymers are obtainable by free radical copolymerization of (A) at least one ethylenically unsaturated dicarboxylic anhydride, derived from at least one dicarboxylic acid of 4 to 8 carbon atoms, (B) at least one oligomer of branched or straight-chain C3-C10-alkene, at least one oligomer having an average molecular weight Mn of from 300 to 5 000 g/mol or being obtainable by oligomerization of at least 3 equivalents of C3-C10-alkene, (C) optionally at least one ethylenically unsaturated comonomer differing from (A), and optionally reaction with (D) at least one compound of the formula I a or I b and subsequent addition of water, where, in formulae I a and I b, A1 are identical or different C2-C20-alkylene, R1 is linear or branched C1-C30-alkyl, phenyl or hydrogen, and n is an integer from 1 to 200, the water content being from 30 to 99.5% by weight, based on aqueous dispersion.Type: ApplicationFiled: September 18, 2004Publication date: June 28, 2007Applicant: Basf AktiengesellschaftInventors: Stephan Hueffer, Darijo Mijolovic, Peter Danisch, Matthias Kluglein, Gunther Pabst, Gerhard Wolf
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Publication number: 20060096036Abstract: Water repellency is imparted to leather and fur skins by a process in which leather or fur skin is treated, before, during or after the retanning, with one or more formulations comprising from 1 to 30% by weight, based on the formulation, of a mixture of polysiloxanes comprising from 10 to 90% by weight, based on the mixture, of one or more carboxyl-containing polysiloxanes, from 90 to 10% by weight, based on the mixture, of one or more carboxyl-free polysiloxanes and from 3 to 25% by weight, based on the formulation, of at least one emulsifier.Type: ApplicationFiled: January 28, 2004Publication date: May 11, 2006Inventors: Ralph Lunkwitz, Peter Danisch, Thorsten Radler, Werner Janson, Friedrich Sattler
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Publication number: 20030109741Abstract: Described are complex mixtures of partial esters of polybasic organic acids and long-chain alkanols, alkoxyalkanols and diols, especially thick oils from the oxo process, their preparation and their use as inexpensive high-performance emulsifiers and especially as assistants in leather manufacture.Type: ApplicationFiled: September 16, 2002Publication date: June 12, 2003Inventors: Peter Weyland, Susanne Demharter, Peter Danisch, Gunter Oetter
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Patent number: 6336942Abstract: Aqueous solutions or aqueous emulsions of copolymers are obtainable by copolymerization of (a) from 20 to 95 mol % of at least one monoethylenically unsaturated C4-C12-dicarboxylic acid or the anhydride thereof with (b) from 5 to 80 mol % of at least one branched oligomer or polymer which has a vinyl, vinylidene or alkylvinylene terminal group and is of at least 9 carbon atoms and (c) from 0 to 50 mol % of at least one further monoethylenically unsaturated compound which is copolymerizable with the monomers (a) and (b) and contain from 0.5 to 70% by weight, based on the total amount of the solutions or emulsions, of these copolymers. These copolymer solutions or emulsions are suitable as leather assistants and as dispersants for pigments.Type: GrantFiled: September 15, 1997Date of Patent: January 8, 2002Assignee: BASF AktiengesellschaftInventors: Peter Danisch, Johannes Peter Dix, Walter Denzinger, Axel Kistenmacher, Michael Kneip, Hans-Joachim Müller, Joachim Rösch, Gunnar Schornick
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Patent number: 6200640Abstract: Aqueous solutions or dispersions of copolymers obtainable by free-radical copolymerization of (a) from 20 to 90% by weight of at least one monoethylenically unsaturated C4-6-dicarboxylic acid or the anhydride thereof, as component A, (b) from 5 to 50% by weight of at least one olefin having 2 to 6 carbon atoms, as component B, (c) from 5 to 50% by weight of at least one hydrophobic comonomer from the group consisting of long-chain olefins, esters of long-chain alcohols with acrylic acid or methacrylic acid, long-chain amides of acrylic acid or methacrylic acid, and long-chain alkyl vinyl ethers, as component C, (d) from 0 to 40% by weight of further comonomers which can be copolymerized with the above monomers, as component D, where the sum of the amounts of components A, B, C and, if used, D is 100% by weight, followed by at least partial esterification or hydrolysis and neutralization and/or reaction of the carboxyl groups formed during the hydrolysis with bases, for treating leather and/or fur skins.Type: GrantFiled: November 9, 1998Date of Patent: March 13, 2001Assignee: BASF AktiengesellschaftInventors: Michael Kneip, Axel Kistenmacher, Peter Danisch, Gerhard Wolf
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Patent number: 5914442Abstract: Aqueous solution or aqueous dispersion of copolymers suitable for the fatliquoring and filling of leather and fur skins are obtained by free-radical copolymerization ofA.sup.1) C.sub.6 -C.sub.40 -monoolefins or C.sub.6 -C.sub.40 -alkyl vinyl ethers or mixtures thereof withB.sup.1) monoethylenically unsaturated C.sub.4 -C.sub.8 -dicarboxylic anhydrides or by free-radical copolymerization ofA.sup.2) C.sub.6 -C.sub.40 -alkyl acrylates or methacrylates or vinyl esters of C.sub.6 -C.sub.40 -carboxylic acids or mixtures thereof withB.sup.2) monoethylenically unsaturated C.sub.3 -C.sub.12 -carboxylic acids, monoethylenically unsaturated C.sub.4 -C.sub.12 -dicarboxylic anhydrides, monoesters or monoamides of monoethylenically unsaturated C.sub.4 -C.sub.12 -dicarboxylic acids, amides of monoethylenically unsaturated C.sub.3 -C.sub.Type: GrantFiled: July 25, 1996Date of Patent: June 22, 1999Assignee: BASF AktiengesellschaftInventors: Hermann Birkhofer, Michael Kneip, Peter Danisch, Walter Denzinger, Axel Kistenmacher, Heinrich Hartmann
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Patent number: 5702490Abstract: Leather and skins are water repellent in aqueous emulsion in the presence of emulsifiers with polysiloxanes which are functionalized with carboxyl groups in a comb-like manner and in which the carboxyl groups are bonded to the polymer main chain via spacer groups in the form of linear or branched C.sub.2 -C.sub.40 -alkylene groups which may be interrupted by up to 8 non-neighboring oxygen atoms or groups of the formula --NR.sup.1 --, CO-- ?sic! or --CO--NR.sup.1 -- and in addition may carry up to 5 carboxyl groups or carboxamido groups of the formula --CO--NR.sup.1 R.sup.2 --, where R.sup.1 and R.sup.2 are each hydrogen or C.sub.1 -C.sub.4 -alkyl, the spacer groups being bonded to the polymer main chain via a direct bond or via an oxygen atom or a group of the formula --NR.sup.1 --, --CO--, --CO--NR.sup.1 -- or --CO--O--.Type: GrantFiled: August 15, 1996Date of Patent: December 30, 1997Assignee: BASF AktiengesellschaftInventors: Michael Kneip, Peter Danisch
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Patent number: 5620748Abstract: Soft leathers with a pleasant hand are obtained on fatliquoring and filling leather and fur skins with water-soluble or water-dispersible graft polymers of vegetable and animal oils, obtainable by radically initiated polymerizationA) of a monomer or monomer mixture comprising(a) from 20 to 100% by weight of monoethylenically unsaturated carboxylic acids and/or monoethylenically unsaturated sulfonic acids and/or monoethylenically unsaturated phosphonic acids or their alkali metal, alkaline earth metal or ammonium salts,(b) from 0 to 80% by weight of other monoethylenically unsaturated monomers which are copolymerizable with the monomers (a), and(c) from 0 to 5% by weight of at least doubly ethylenically unconjugatedly unsaturated monomersin the presence ofB) vegetable and/or animal oils in a weight ratio of A:B of (80-1):(20-99).Type: GrantFiled: March 3, 1994Date of Patent: April 15, 1997Assignee: BASF AktiengesellschaftInventors: Hermann Birkhofer, Peter Danisch, Walter Denzinger, Heinrich Hartmann, Michael Kneip
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Patent number: 5527360Abstract: 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: GrantFiled: April 21, 1995Date of Patent: June 18, 1996Assignee: BASF AktiengesellschaftInventors: Hermann Birkhofer, Peter Danisch, Norbert Greif, Knut Oppenlaender
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Patent number: 5433752Abstract: 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: GrantFiled: August 26, 1994Date of Patent: July 18, 1995Assignee: BASF AktiengesellschaftInventors: Hermann Birkhofer, Peter Danisch, Walter Denzinger, Heinrich Hartmann, Norbert Greif, Knut Oppenlaender