Patents by Inventor Gerhard Auchter
Gerhard Auchter 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: 6254985Abstract: Pressure-sensitive adhesives comprising an aqueous polymer dispersion wherein the polymer is composed of from 60 to 95% by weight of a mixture comprising at least one C4-alkyl acrylate and at least one C6-C12-alkyl acrylate (monomers a) from 5 to 30% by weight of ethylenically unsaturated com- pounds having a glass transition temperature of above 0° C.Type: GrantFiled: April 12, 1999Date of Patent: July 3, 2001Assignee: BASF AktiengesellschaftInventors: Matthias Gerst, Gerhard Auchter, Alexander Zettl
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Patent number: 6225401Abstract: Readily filterable and deodorizable aqueous dispersions of pressure-sensitive adhesive, especially for self-adhesive labels, having solids contents of more than 65%, can be prepared with readily reproducible properties by copolymerizing esters of acrylic and/or methacrylic acid in the presence of less than 50 ppm of inhibitor and, preferably, in the presence of from 0.01 to 5% by weight of reducing agent by a special emulsion technique. The highly concentrated pressure-sensitive adhesive dispersion, subsequently deodorized with steam, is free from coagulum and seediness.Type: GrantFiled: February 22, 1999Date of Patent: May 1, 2001Assignee: BASF AktiengesellschaftInventors: Gerd Rehmer, Bernd Stanger, Gerhard Auchter, Johannes Türk, Oral Aydin, Rüdiger Füssl
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Patent number: 6214925Abstract: A polymer which is composed of from 50 to 99.98% by weight of a C1-C12 alkyl (meth)acrylate a), from 0.02 to 1.8% by weight of a vinyl-aromatic compound b), from 0 to 10% by weight of an ethylenically unsaturated acid or an ethylenically unsaturated acid anhydride c), and from 0 to 40% by weight of other monomers d), the percentages by weight being based on the polymer.Type: GrantFiled: February 9, 1999Date of Patent: April 10, 2001Assignee: BASF AktiengesellschaftInventors: Bernhard Schuler, Gerhard Auchter, Johannes Türk, Rik Noordijk, Johannes Dobbelaar, Reinhard Bächer, Wolfgang Hümmer
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Patent number: 5532329Abstract: Copolymers which are self-curable with atmospheric humidity and are based on acrylic, methacrylic and/or vinyl esters which have been prepared using silicon-containing regulators, and mixtures of such polymers with crosslinkers, are suitable as adhesive, sealing and coating compositions which are self-curable with atmospheric humidity.Type: GrantFiled: December 28, 1994Date of Patent: July 2, 1996Assignee: BASF AktiengesellschaftInventors: Ulrich Filges, Oral Aydin, Gerhard Auchter, Juergen Barwich, Hermann Anders, Werner Langer, Klaus Vorspohl
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Patent number: 5470907Abstract: Aqueous polyurethane dispersions contain, at a pH of the dispersing medium of .gtoreq.6, an anionically stabilized polyurethane present in disperse form as well as an added polymer having acidic functions and intended for reducing the flow resistance.Type: GrantFiled: June 21, 1994Date of Patent: November 28, 1995Assignee: BASF AktiengesellschaftInventors: Alexander Wallon, Gerhard Auchter, Ulrike Licht, Karl Haeberle, Angelika Funhoff
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Patent number: 5308914Abstract: Aqueous dispersions containing a polyurethane and from 5 to 60% by weight, based on the polyurethane, of an adhesion-improving polymer, the polyurethane consisting essentially of(a) organic diisocyanates,(b) dihydroxy compounds which have a molecular weight of from more than 500 to 5,000 g/mol and contain no ionic groups or groups convertible into ionic groups,(c) compounds having one or two functional groups reactive toward isocyanate and at least one ionic group or group convertible into an ionic group and(d) compounds having at last 3 isocyante groups or at least 3 functional groups reactive toward isocyanate,(e) optionally compounds which differ from (c) and have two functional groups reactive toward isocyanate and a molecular weight of from 60 to 500 g/mol, the compounds (d) being used in amounts such that the functionality F of all components is from 2.01 to 2.5, and the polyurethane or a prepolymer thereof is prepared in a water-miscible solvent boiling below 100.degree. C.Type: GrantFiled: November 9, 1992Date of Patent: May 3, 1994Assignee: BASF AktiengesellschaftInventors: Alexander Wallon, Lothar Maempel, Gerhard Auchter, Horst Seibert
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Patent number: 5298554Abstract: Abstract of the Disclosure: Polymers of olefinically unsaturated monomers and solutions of these polymers are obtainable by a process in which the olefinically unsaturated monomers are polymerized in the presence of a free radical initiator in solution under polymerization conditions which are otherwise predetermined, in such a way that the solvent and/or a liquid part of one or more reactants of the polymerization batch are initially taken and heated to the polymerization temperature, and some or the total amount of the monomers to be polymerized is fed continuously to the agitated initially taken part of the polymerization batch via one or more feeds, with maintenance or initiation of the polymerization, in such a way that the outlet orifice of the one or more feeds is located below the surface of the initially taken liquid part of the polymerization batch.Type: GrantFiled: June 26, 1991Date of Patent: March 29, 1994Assignee: BASF AktiengesellschaftInventors: Gerd Rehmer, Juergen Barwich, Gerhard Auchter
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Patent number: 5294688Abstract: The invention relates to UV-crosslinkable copolymers built up fromA) from 99.5 to 75% by weight of olefinically unsaturated monomers,B) from 0.5 to 25% by weight of unsaturated compounds of the formula I ##STR1## and C) from 0.01 to 10% by weight of copolymerizable, olefinically unsaturated acetophenone and/or benzophenone derivatives containing no phenyl group having a free hydroxyl group in the ortho-position to the carbonyl group, whereX is O, S or NR.sup.1 andR is unsubstituted or substituted C.sub.2 - to C.sub.6 -alkylene, andR.sup.1 is C.sub.1 - to C.sub.8 -alkyl or phenyl.The copolymers according to the invention are suitable, after crosslinking, as coating agents, impregnants or adhesives and in particular as contact adhesives.Type: GrantFiled: November 16, 1992Date of Patent: March 15, 1994Assignee: BASF AktiengesellschaftInventors: Gerd Rehmer, Gerhard Auchter, Andreas Boettcher, Lothar Franz, Helmut Jaeger
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Patent number: 5276069Abstract: Synthetic resins are obtainable by chemically bonding one or more compounds of the general formula I ##STR1## where R.sup.1 is --OH, --NH.sub.2, ##STR2## --NHR.sup.3 or ##STR3## R.sup.2 is --H, --CH.sub.3 or --C.sub.2 H.sub.5, R.sup.3 is --C.sub.m H.sub.2m+1, where m is from 1 to 6, R.sup.4 is --H or --CH.sub.3 and n is from 1 to 12, via the oxygen or nitrogen atom of R.sup.1 to one or more polymers A which consist ofa) from 50 to 100% by weight of one or more esters of acrylic or methacrylic acid with monohydric alcohols of 1 to 18 carbon atoms or a mixture of these esters (monomers a) andb) from 0 to 50% by weight of other copolymerizable monomers (monomers b) in polymerized form,in amounts such that the synthetic resin contains from 0.01 to 1 mole of double bonds per kg of polymer A.After exposure to ultraviolet light or to electrons, these synthetic resins are suitable as contact adhesives.Type: GrantFiled: May 3, 1991Date of Patent: January 4, 1994Assignee: BASF AktiengesellschaftInventors: Gerd Rehmer, Gerhard Auchter, Helmut Jaeger
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Patent number: 5244950Abstract: An aqueous synthetic resin dispersion consisting of (A) from 35 to 60% by weight of a synthetic resin prepared by free radical solution polymerization of a monomer mixture A1 and monomer mixture A2, wherein mixture A1 is (a) from 1.5 to 15% by weight of at least one C.sub.3-5 unsaturated monocarboxylic acid, maleic or itaconic acid or anhydride and half-esters of maleic acid or itaconic acid with a C.sub.1-8 ankanol or with glycol monoethers, (b) from 65 to 98.5% by weight of at least one C.sub.1-10 alkyl (meth)acrylate, and optionally at least one C.sub.Type: GrantFiled: October 15, 1991Date of Patent: September 14, 1993Assignee: BASF AktiengesellschaftInventors: Bernhard Schlarb, Gerhard Auchter, Peter Pfoehler
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Patent number: 5173523Abstract: Aqueous polymer emulsions whose polymer component essentially consists ofA) from 15 to 50% by weight of copolymer A ofI from 25 to 98.5% by weight of a C.sub.1 -C.sub.20 -alkyl acrylate or methacrylate or a mixture of these esters,II from 0 to 60% by weight of a monomer I or a vinylaromatic,III from 1.Type: GrantFiled: February 20, 1990Date of Patent: December 22, 1992Assignee: BASF AktiengesellschaftInventors: Gerhard Auchter, Gerhard Neubert, Rolf Osterloh
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Patent number: 5128386Abstract: UV-crosslinkable materials based on (meth)acrylate copolymers contain copolymerized monomers of the general formula I ##STR1## where R is a certain alkyl radical, an aryl radical or a radical R.sup.1 and R.sup.1 is a radical ##STR2## where R.sup.2 to R.sup.6 are each H, alkyl, a non-ortho OH group, OCH.sub.3, OC.sub.2 H.sub.3, SH, SCH.sub.3, Cl, F, CN, COOH, COO(C.sub.1 -C.sub.3 -alkyl), CF.sub.3, N(CH.sub.3).sub.2, N(C.sub.2 H.sub.5).sub.2, N(CH.sub.3)C.sub.6 H.sub.5, .sup.+ N(CH.sub.3).sub.3 X.sup.- or .sup.+N(CH.sub.3).sub.X X.sup.-, where X.sup.- is an acid anion, and one or more of the radicals R.sup.2 to R.sup.Type: GrantFiled: December 15, 1989Date of Patent: July 7, 1992Assignee: BASF AktiengesellschaftInventors: Gerd Rehmer, Andreas Boettchher, Gerhard Auchter
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Patent number: 5082884Abstract: Silicon-containing polymers consist ofa) from 65 to 99.95 parts by weight of one or more acrylates and/or methacrylates of an aliphatic alcohol of 1 to 12 carbon atoms (monomers A),b) from 0 to 30 parts by weight of one or more ethylenically unsaturated monomers capable of undergoing free radical copolymerization (monomers B),c) from 0.05 to 10 parts by weight of one or more anhydrides of an .alpha.,.beta.-monoethylenically unsaturated dicarboxylic acid of 4 to 10 carbon atoms (monomers C) or from 0.1 to 10 parts by weight of one or more monomers containing one or more isocyanate groups and capable of undergoing free radical copolymerization (monomers D) andd) effective amounts of one or more silanes of the general formula INH.sub.2 --R.sup.1 --Si(R.sup.2).sub.3-m (R.sup.3).sub.m (I)where m is 0, 1 or 2, R.sup.1 is a hydrocarbon chain of not more than 10 carbon atoms which may be interrupted by oxygen or nitrogen, the radicals R.sup.2 are identical or different hydrolyzable groups and the radicals R.sup.Type: GrantFiled: February 22, 1990Date of Patent: January 21, 1992Assignee: BASF AktiengesellschaftInventors: Ulrich Filges, Oral Aydin, Andreas Otterbach, Gerhard Auchter
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Patent number: 5041495Abstract: Aqueous secondary dispersions containing phosphate groups are obtainable by copolymerization of(A) 25-98% by weight of acrylates and/or methacrylates,(B) 1-10% by weight of acrylic and/or methacrylic acid,(C) 1-8% by weight of a compound of the general formula ##STR1## where R.sup.1 and R.sup.2 are each hydrogen and/or a C.sub.1 -C.sub.8 -hydrocarbon radical and Z is a straight-chain or branched C.sub.1 -C.sub.8 -alkylene, and(D) 0-60% by weight of a copolymerizable olefinically unsaturated compound, in an organic solvent, neutralization of the copolymer solution and dilution with water and, if required, removal of solvent by distillation.Type: GrantFiled: August 6, 1990Date of Patent: August 20, 1991Assignee: BASF AktiengesellschaftInventors: Thomas Schwerzel, Gerhard Auchter, Eckehardt Wistuba
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Patent number: 4952623Abstract: Aqueous polymer dispersions which have a long shelf life are obtainable by dispersing a mixture of 15-50% by weight of a copolymer (A) of(I) 1.5-15% by weight of copolymerizable compounds of 3 to 10 carbon atoms which contain a carboxyl or carboxylic anhydride group,(II) 30-98.5% by weight of C.sub.1 -C.sub.20 -alkyl acrylates or methacrylates,(III) 0-60% by weight of vinylaromatics,(IV) 0-20% by weight of copolymerizable carbonyl compounds and(V) 0-20% by weight of further copolymerizable organic compounds not stated under (I) to (IV) and50-85% by weight of a copolymer (B) of40-100% by weight of the monomers (II) and0-60% by weight of the monomers (III) to (V),with the proviso that the copolymers (A) and (B) together contain, as components, up to 65% by weight of alkyl (meth)acrylates (II) whose homopolymers have glass transition temperatures of less than 0.degree. C.Type: GrantFiled: June 23, 1988Date of Patent: August 28, 1990Assignee: BASF AktiengesellschaftInventors: Gerhard Auchter, Thomas Schwerzel, Rainer Blum, Gerhard Neubert, Eckehardt Wistuba, Rolf Osterloh
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Patent number: 4931494Abstract: Aqueous polymer dispersions which have a long shelf life are obtainable by dispersing a mixture of from 15 to 70% by weight of a copolymer (A) of(I) from 1.5 to 15% by weight of copolymerizable compounds of 3 to 10 carbon atoms which contain a carboxyl or carboxylic anhydride group,(II) from 65 to 98.5% by weight of C.sub.1 -C.sub.20 -alkyl acrylates or methacrylates,(III) from 0 to 20% by weight of vinylaromatics,(IV) from 0 to 20% by weight of copolymerizable carbonyl compounds and(V) from 0 to 10% by weight of further copolymerizable organic compounds not stated under (I) to (IV), and from 30to 85% by weight of a copolymer (B) of from 60 to 100% by weight of the monomers (II) and from 0 to 40% by weight of the monomers (III) to (V), with the proviso that the copolymers (A) and (B) together contain, as components, more than 65% by weight of alkyl (meth)acrylates (II) whose homopolymers have glass transition temperatures of less than 0.degree. C.Type: GrantFiled: June 23, 1988Date of Patent: June 5, 1990Assignee: BASF AktiengesellschaftInventors: Gerhard Auchter, Thomas Schwerzel, Rolf Osterloh, Gerhard Neubert, Peter Pfoehler, Wolfgang Druschke, Helmut Jaeger
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Patent number: 4904724Abstract: Aqueous polymer dispersions are prepared by free radical polymerization of(a) from 50 to 100%, based on the total weight of the monomers, of C.sub.1 -C.sub.20 -alkyl (meth)acrylates,(b) from 0 to 20%, based on the total weight of the monomers, of polyolefinically unsaturated monomers and(c) from 0 to 30%, based on the total weight of the monomers, of further monoolefinically unsaturated monomersin aqueous emulsion in the presence of a preformed solution copolymer (A) dispersed in water and obtained from(I) 1.5-15%, based on its weight, of monomers of 3 to 10 carbon atoms which contain a carboxyl or carboxylic anhydride group,(II) 30-98.5%, based on its weight, of C.sub.1 -C.sub.Type: GrantFiled: December 16, 1988Date of Patent: February 27, 1990Assignee: BASF AktiengesellschaftInventors: Gerhard Auchter, Gerhard Neubert
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Patent number: 4786676Abstract: Polymeric compositions which undergo crosslinking after drying at room temperature or elevated temperatures and are dissolved or dispersed in water are prepared by reacting polymeric organic compounds containing carbonyl and carboxyl groups with polyhydrazides in the presence of monoketones or monoaldehydes and are dissolved or dispersed in water by partially or completely neutralizing the carboxyl groups.They are useful as crosslinking agents and as binders for coatings on sheet-like substrates.Type: GrantFiled: October 10, 1986Date of Patent: November 22, 1988Assignee: BASF AktiengesellschaftInventors: Rainer Blum, Rolf Osterloh, Gerhard Neubert, Gerhard Auchter