Patents by Inventor Thomas Pfeuffer
Thomas Pfeuffer 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: 9315717Abstract: Water-soluble, hydrophobically associating copolymer comprising a monoethylenically unsaturated, water-soluble, surface-active monomer (a), and a monoethylenically unsaturated, hydrophilic monomer (b) different from monomer (a). The copolymer is prepared in the presence of a nonpolymerizable surfactant and has marked thickening properties in aqueous systems.Type: GrantFiled: July 30, 2010Date of Patent: April 19, 2016Assignee: BASF SEInventors: Thomas Pfeuffer, Roland Reichenbach-Klinke, Stefan Friedrich, Marcus Guzmann
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Patent number: 9163103Abstract: Water-soluble, hydrophobically associating copolymers which comprise new types of hydrophobically associating monomers. The monomers comprise an ethylenically unsaturated group and a polyether group with block structure comprising a hydrophilic polyalkylene oxide block which consists essentially of ethylene oxide groups, and a terminal, hydrophobic polyalkylene oxide block which consists of alkylene oxides with at least 4, preferably at least 5 carbon atoms.Type: GrantFiled: July 3, 2014Date of Patent: October 20, 2015Assignee: BASF SEInventors: Roland Reichenbach-Klinke, Thomas Pfeuffer, Kati Schmidt, Thomas Ostrowski, Reinhold J. Leyrer, Yulia Fogel, Stefan Friedrich, Peter Gaeberlein, Andrea Orleans, Manfred Schuhbeck, Marcus Guzmann, Marcus Rösch, Bjorn Langlotz
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Publication number: 20140316035Abstract: Water-soluble, hydrophobically associating copolymers which comprise new types of hydrophobically associating monomers. The monomers comprise an ethylenically unsaturated group and a polyether group with block structure comprising a hydrophilic polyalkylene oxide block which consists essentially of ethylene oxide groups, and a terminal, hydrophobic polyalkylene oxide block which consists of alkylene oxides with at least 4, preferably at least 5 carbon atoms.Type: ApplicationFiled: July 3, 2014Publication date: October 23, 2014Applicant: BASF SEInventors: ROLAND REICHENBACH-KLINKE, Thomas Pfeuffer, Kati Schmidt, Thomas Ostrowski, Reinhold J. Leyrer, Yulia Fogel, Stefan Friedrich, Peter Gaeberlein, Andrea Orleans, Manfred Schuhbeck, Marcus Guzmann, Marcus Rösch, Bjorn Langlotz
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Patent number: 8783356Abstract: Water-soluble, hydrophobically associating copolymers which comprise new types of hydrophobically associating monomers. The monomers comprise an ethylenically unsaturated group and a polyether group with block structure comprising a hydrophilic polyalkylene oxide block which consists essentially of ethylene oxide groups, and a terminal, hydrophobic polyalkylene oxide block which consists of alkylene oxides with at least 4, preferably at least 5 carbon atoms.Type: GrantFiled: November 19, 2012Date of Patent: July 22, 2014Assignee: BASF SEInventors: Roland Reichenbach-Klinke, Thomas Pfeuffer, Kati Schmidt, Thomas Ostrowski, Reinhold J. Leyrer, Yulia Fogel, Stefan Friedrich, Peter Gaeberlein, Andrea Orleans, Manfred Schuhbeck, Marcus Guzmann, Marcus Rösch, Bjorn Langlotz
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Patent number: 8362180Abstract: Water-soluble, hydrophobically associating copolymers which comprise new types of hydrophobically associating monomers. The monomers comprise an ethylenically unsaturated group and a polyether group with block structure comprising a hydrophilic polyalkylene oxide block which consists essentially of ethylene oxide groups, and a terminal, hydrophobic polyalkylene oxide block which consists of alkylene oxides with at least 4, preferably at least 5 carbon atoms.Type: GrantFiled: May 20, 2010Date of Patent: January 29, 2013Assignee: BASF SEInventors: Roland Reichenbach-Klinke, Thomas Pfeuffer, Kati Schmidt, Thomas Ostrowski, Reinhold J Leyrer, Yulia Fogel, Stefan Friedrich, Peter Gaeberlein, Andrea Orleans, Manfred Schuhbeck, Marcus Guzmann, Markus Rösch, Björn Langlotz
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Publication number: 20120129739Abstract: Water-soluble, hydrophobically associating copolymer comprising a monoethylenically unsaturated, water-soluble, surface-active monomer (a), and a monoethylenically unsaturated, hydrophilic monomer (b) different from monomer (a). The copolymer is prepared in the presence of a nonpolymerizable surfactant and has marked thickening properties in aqueous systems.Type: ApplicationFiled: July 30, 2010Publication date: May 24, 2012Inventors: Thomas Pfeuffer, Roland Reichenbach-Klinke, Stefan Friedrich, Marcus Guzmann
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Publication number: 20110237468Abstract: A process is proposed for blocking underground formations in the extraction of fossil oil and/or gas, a first step involving introducing water-absorbing particles into liquid-bearing and porous rock formations, said particles being water-swellable, crosslinked and water-insoluble polymers, said particles in the water-bearing rock formation finally preventing liquid flow through the rock layers by water absorption. This process is characterized in that the absorbing particles comprise a superabsorbent polymer with anionic and/or cationic properties and a retarded swelling action. This process, which can also be carried out in saline formation waters, is notable in that the swelling of the superabsorbents used begins no earlier than after five minutes and in that the superabsorbents are obtainable by four proposed process variants and any combination thereof.Type: ApplicationFiled: November 7, 2009Publication date: September 29, 2011Inventors: Roland Reichenbach-Klinke, Marcus Guzmann, Thomas Pfeuffer, Gregor Herth, Stefan Friedrich
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Publication number: 20110139037Abstract: A delayed action powdery building compound is provided, consisting of a reactive support material and a liquid polymer component applied to the support material. The inventive compound can contain the support material in the form of hydraulic (latent) binder, inorganic additives and/or organic components, and the polymer component for example in the form of polyvinyl alcohols, polyvinyl acetates and MPS-based polymers. The component makes it possible to obtain the delayed liberation of the support material in an aqueous building chemical mixture as a result of a time-depending separation of the polymer component from said support material. The powdery building compound also makes it possible to carry out a time-controlled hardening of hydratable building material mixtures and to obtain a time-controlled internal drying of aqueous dispersion-based materials.Type: ApplicationFiled: October 5, 2010Publication date: June 16, 2011Applicant: CONSTRUCTION RESEARCH & TECHNOLOGY GMBHInventors: Uwe Holland, Matthias Degenkolb, Joachim Riedmiller, Peter Gäberlein, Werner Stohr, Thomas Pfeuffer, Christian Huber
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Publication number: 20100331510Abstract: Water-soluble, hydrophobically associating copolymers which comprise new types of hydrophobically associating monomers. The monomers comprise an ethylenically unsaturated group and a polyether group with block structure comprising a hydrophilic polyalkylene oxide block which consists essentially of ethylene oxide groups, and a terminal, hydrophobic polyalkylene oxide block which consists of alkylene oxides with at least 4, preferably at least 5 carbon atoms.Type: ApplicationFiled: May 20, 2010Publication date: December 30, 2010Applicant: BASF SEInventors: Roland Reichenbach-Klinke, Thomas Pfeuffer, Kati Schmidt, Thomas Ostrowski, Reinhold J. Leyrer, Yulia Fogel, Stefan Friedrich, Peter Gaeberlein, Andrea Orleans, Manfred Schuhbeck, Marcus Guzmann, Markus Rösch, Björn Langlotz
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Patent number: 7745565Abstract: A description is given of azetidine derivatives and methods for producing them, and of their use as a latent curing component for resins having functional groups which are reactive toward amino groups. The particular advantages of the curing component proposed in accordance with the invention, such as effective producibility, high environmental friendliness, and excellent storage stability of the resin/curing agent mixtures, make these azetidine derivatives outstandingly suitable for one-component, moisture-hardening polymer compositions, which are of special interest in particular for the production of (floor) coatings, sealants, and adhesives.Type: GrantFiled: December 2, 2004Date of Patent: June 29, 2010Assignee: Construction Research & Technology GmbHInventors: Stefan Ingrisch, Alois Maier, Thomas Pfeuffer, Norbert Steidl, Herbert Winkelmann, Andrea Gantner, legal representative
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Patent number: 7605196Abstract: The invention relates to water-soluble copolymers used as water retention agents, stabilizers and rheology modifiers in aqueous building material systems based on hydraulic binders such as cement, lime, plaster, anhydrite etc. and in water-based paint and coating systems. The inventive copolymers are highly effective water retention agents even when used in relatively small amounts. They also exhibit excellent air pore stability and adhesiveness. They can also be used as stabilizers in building material and paint systems.Type: GrantFiled: June 30, 2005Date of Patent: October 20, 2009Assignee: Construction Research & Technology GmbHInventors: Michael Schinabeck, Stefan Friedrich, Uwe Holland, Thomas Pfeuffer, Michael Eberwein, Thomas Schuhbeck
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Publication number: 20080200590Abstract: The invention relates to water-soluble copolymers used as water retention agents, stabilizers and rheology modifiers in aqueous building material systems based on hydraulic binders such as cement, lime, plaster, anhydrite etc. and in water-based paint and coating systems. The inventive copolymers are highly effective water retention agents even when used in relatively small amounts. They also exhibit excellent air pore stability and adhesiveness. They can also be used as stabilizers in building material and paint systems.Type: ApplicationFiled: June 30, 2005Publication date: August 21, 2008Inventors: Michael Schinabeck, Stefan Friedrich, Uwe Holland, Thomas Pfeuffer, Michael Eberwein, Thomas Schuhbeck
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Publication number: 20080045690Abstract: A description is given of azetidine derivatives and methods for producing them, and of their use as a latent curing component for resins having functional groups which are reactive toward amino groups. The particular advantages of the curing component proposed in accordance with the invention, such as effective producibility, high environmental friendliness, and excellent storage stability of the resin/curing agent mixtures, make these azetidine derivatives outstandingly suitable for one-component, moisture-hardening polymer compositions, which are of special interest in particular for the production of (floor) coatings, sealants, and adhesives.Type: ApplicationFiled: December 2, 2004Publication date: February 21, 2008Inventors: Stefan Ingrisch, Alois Maier, Thomas Pfeuffer, Norbert Steidl, Andrea Gantner, Herbert Winkelmann
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Publication number: 20060269752Abstract: The invention relates to a delayed action powdery building compound, consisting of a reactive support material and a liquid polymer component applied to the support material. The inventive compound can contain the support material in the form of hydraulic (latent) binder, inorganic additives and/or organic components, and the polymer component, for example in the form of polyvinyl alcohols, polyvinyl acetates and AMPS-based polymers. The component makes it possible to obtain the delayed liberation of the support material in an aqueous building chemical mixture as a result of a time-depending separation of the polymer component from said support material. The powdery building compound also makes it possible to carry out a time-controlled hardening of hydratable building material mixtures and to obtain a time-controlled internal drying of aqueous dispersion-based materials.Type: ApplicationFiled: April 2, 2004Publication date: November 30, 2006Applicant: CONSTRUCTION RESEARCH & TECHNOLOGY GMBHInventors: Uwe Holland, Matthias Degenkolb, Joachim Riedmiller, Peter Gaberlein, Werner Stohr, Thomas Pfeuffer, Christian Huber
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Publication number: 20060194931Abstract: The invention relates to the use of diazepine derivates of general formula (I) and/or (II), wherein R1, R2, R3 and R5 independently represent H, C1-C20-alkyl, C3-C8-cycloakyl, C6-C10-aryl or alkylaryl comprising C1-C4-alkyl and C6-C10-aryl groups, R4?H, C1-C6-alkyl(iden), as latent hardening components for resinous substances comprising functional groups which can react with amines. Based on the particular advantages of the inventive hardening components, such as good producibility, environmentally friendly and having an excellent shelf life of the resin/hardening mixture, said diazepine derivatives are outstanding for single-componented, moisture-hardening polymer masses, which are particularly useful in the production of sealing materials, adhesives and coating materials.Type: ApplicationFiled: May 5, 2004Publication date: August 31, 2006Applicant: CONSTRUCTION RESEARCH & TECHNOLOGY GMBHInventors: Stefan Ingrisch, Alois Maier, Thomas Pfeuffer, Norbert Steidl, Herbert Winkelmann, Fleix Gantner, Andrea Gantner
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Publication number: 20050234191Abstract: A process is described for producing homo-, co- and block copolymers by controlled radical polymerization in aqueous solution, wherein a monomer component (A) consisting of at least one radically polymerizable monomer, an initiator component (B) consisting of at least one radical initiator, a polysaccharide component (C) consisting of at least one cyclic polysaccharide (derivative) and a regulator component (D) consisting of at least one compound of the general formula (Ia) or/and (Ib) are reacted in the presence of water, in which R1 to R6 can each independently denote hydrogen, an optionally substituted C1-C20 alkyl residue, C3-C8 cycloalkyl residue, C7-C34 aralkyl residue or optionally an aromatic C6-C14 hydrocarbon residue and R2 and R5 can additionally denote polymer residues having an average molecular mass (number average) of 100 to 50,000 Daltons, and at least two but at most four of the residues R1 to R6 represent an aromatic hydrocarbon residue.Type: ApplicationFiled: August 1, 2003Publication date: October 20, 2005Inventors: Stefan Ingrisch, Maier Alois, Thomas Pfeuffer, Norbert Steidl