Patents by Inventor Rainer Dobrawa

Rainer Dobrawa 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: 10815327
    Abstract: A copolymer which comprises, in copolymerized form, (A) 60 to 99% by weight of at least one monoethylenically unsaturated polyalkylene oxide monomer of the formula I (I) in which the variables have the following meanings: X is —CH2— or —CO—, if Y is —O—; is —CO—, if Y is —NH—; Y is —O— or —NH—; R1 is hydrogen or methyl; R2 are identical or different C2-C6-alkylene radicals, which may be arranged blockwise or randomly; R3 is hydrogen or C1-C4-alkyl; n is an integer from 25 to 75, (B) 1 to 40% by weight of at least one quaternized nitrogen-containing monoethylenically unsaturated monomer selected from the group consisting of monomers of formula Ha to IId (Ha-IId) in which the variables have the following meanings: R is C1-C4-alkyl or benzyl; R? is hydrogen or methyl; Y is —O— or —NH—; A is C1-C6-alkylene; X— is halide, C1-C4-alkyl sulfate, C1-C4-alkylsulfonate and Ci-C4-alkyl carbonate, (C) 0 to 10% by weight of anionic monoethylenically unsaturated monomers, and (D) 0 to 30% by weight of other nonionic monoeth
    Type: Grant
    Filed: March 31, 2017
    Date of Patent: October 27, 2020
    Assignee: BASF SE
    Inventors: Aaron Flores-Figueroa, Martin Ruebenacker, Rainer Dobrawa, Markus Brym, Dieter Boeckh, Frank Huelskoetter, Glenn Ward, James Goodwin, Melissa Cuthbertson, Stefano Scialla
  • Publication number: 20190359751
    Abstract: A copolymer which comprises, in copolymerized form, (A) 60 to 99% by weight of at least one monoethylenically unsaturated poly-alkylene oxide monomer of the formula I in which the variables have the following meanings: X is —CH2— or —CO—, if Y is —O—; is —CO—, if Y is —NH—; Y is —O— or —NH—; R1 is hydrogen or methyl; R2 are identical or different C2-C6-alkylene radicals, which may be arranged blockwise or randomly; R3 is hydrogen or C1-C4-alkyl; n is an integer from 25 to 75, (B) 1 to 40% by weight of at least one quaternized nitrogen-containing monoethylenically unsaturated monomer selected from the group consisting of monomers of formula IIa to IId in which the variables have the following meanings: R is C1-C4-alkyl or benzyl; R? is hydrogen or methyl; Y is —O— or —NH—; A is C1-C6-alkylene; X— is halide, C1-C4-alkyl sulfate, C1-C4-alkylsulfonate and C1-C4-alkyl carbonate, (C) 0 to 10% by weight of anionic monoethylenically unsaturated monomers, and (D) 0 to 30% by weight of oth
    Type: Application
    Filed: March 31, 2017
    Publication date: November 28, 2019
    Inventors: Aaron FLORE-FIGUEROA, Martin RUEBENACKER, Rainer DOBRAWA, Markus BRYM, Dieter BOECKH, Frank HUELSKOETTER, Glenn WARD, James GOODWIN, Melissa CUTHBERTSON, Stefano SCIALLA
  • Patent number: 9439971
    Abstract: The use of water-soluble or water-dispersible copolymers which are obtained by free radical-initiated polymerization of a mixture of i) 30 to 80% by weight N-vinyllactam, ii) 10 to 50% by weight vinylacetate and iii) 10 to 50% by weight of a polyether, with the proviso that the total of i), ii) and iii) is equal to 100% by weight, as binders for producing solid active ingredient-containing dosage forms.
    Type: Grant
    Filed: January 2, 2013
    Date of Patent: September 13, 2016
    Assignee: BASF SE
    Inventors: Kathrin Meyer-Böhm, Rainer Dobrawa, Angelika Maschke, Karl Kolter
  • Patent number: 9073040
    Abstract: The present invention relates to a process for producing water-absorbent polymer particles by polymerizing droplets of a monomer solution in a surrounding heated gas phase and flowing the gas cocurrent through the polymerization chamber, wherein the temperature of the gas leaving the polymerization chamber is 130° C. or less, the gas velocity inside the polymerization chamber is at least 0.5 m/s, and the droplets are generated by using a droplet plate having a multitude of bores.
    Type: Grant
    Filed: April 25, 2013
    Date of Patent: July 7, 2015
    Assignee: BASF SE
    Inventors: Rainer Dobrawa, Thomas Daniel, Uwe Stueven, Marco Krüger, Francisco Javier Lopez Villanueva, Norbert Herfert, Karin Flore, Stefan Blei, Michael A. Mitchell
  • Patent number: 9068023
    Abstract: The invention relates to a continuous process for the preparation of amphiphilic graft polymers, wherein a vinyl ester component (B) composed of vinyl acetate and/or vinyl propionate (B1) and, if desired, a further ethylenically unsaturated monomer (B2), is polymerized in the presence of a polyalkylene oxide (A), a free radical-forming initiator (C) and, if desired, an additive (D), at a mean polymerization temperature at which the initiator (C) has a decomposition half-time of from 1 to 500 min, in at least one tubular reactor segment with a feed side and an outlet side, through which the reaction mixture comprising at least a part of component (A) to (C), and if desired (D), streams, a tubular reactor segment and the use of the inventive amphiphilic graft polymer. The invention further relates to an inventive amphiphilic graft polymer and the use thereof.
    Type: Grant
    Filed: March 7, 2013
    Date of Patent: June 30, 2015
    Assignee: BASF SE
    Inventors: Faissal-Ali El-Toufaili, Michaela Heussler, Christian Schwede, Aaron Flores-Figueroa, Rainer Dobrawa, Dieter Boeckh, Wolfgang Loth, Gerd Konrad
  • Patent number: 9068147
    Abstract: The present invention relates to an ethoxylated polyethylenimine polymer consisting essentially of (a) a polyethyleneimine backbone, (b) a polyoxyethylene chain wherein the polyoxyethylene chain has an average of 1 to less than 40 ethyleneoxide units per unit of NH in the polyethyleneimine backbone, (3) a quaternization degree of from 50% to 100%.
    Type: Grant
    Filed: May 9, 2013
    Date of Patent: June 30, 2015
    Assignee: BASF SE
    Inventors: Rainer Dobrawa, Sophia Ebert, Stefano Scialla, Frank Huelskoetter, Gloria Di Capua, Patrick Delplancke, Marc Evers, Melissa Cuthbertson, Glenn Ward, Anju Brooker, Phan Shean Lim, Michael Stanford Showell
  • Patent number: 8852742
    Abstract: The present invention relates to a process for producing water-absorbent polymer particles by polymerizing droplets of a monomer solution in a surrounding heated gas phase and flowing the gas cocurrent through the polymerization chamber, which comprises coating the water-absorbing polymer particles with at least one sulfinic acid, sulfonic acid and/or salts thereof.
    Type: Grant
    Filed: March 9, 2011
    Date of Patent: October 7, 2014
    Assignee: BASF SE
    Inventors: Norbert Herfert, Thomas Daniel, Rainer Dobrawa
  • Patent number: 8790703
    Abstract: The invention relates to a process for producing formulations of sparingly water-soluble substances, said sparingly soluble substances being present in amorphous embedded form in a copolymer, and said copolymer being obtained by free-radically initiated polymerization of a mixture of i) 30 to 80% by weight of N-vinyllactam, ii) 10 to 50% by weight of vinyl acetate, and iii) 10 to 50% by weight of a polyether, with the proviso that the sum of components i), ii) and iii) equals 100% by weight, which comprises embedding the sparingly soluble substance into the copolymer at temperatures above the melting point of the sparingly soluble substances.
    Type: Grant
    Filed: March 30, 2010
    Date of Patent: July 29, 2014
    Assignee: BASF SE
    Inventors: Kathrin Meyer-Böhm, Rainer Dobrawa, Stefan Fischer, Karl Kolter
  • Patent number: 8759274
    Abstract: The present invention is directed to self-emulsifiable compositions comprising polyolefines, in particular polyisobutene, the process to obtain said emulsions and the use of said emulsions.
    Type: Grant
    Filed: November 8, 2012
    Date of Patent: June 24, 2014
    Assignee: BASF SE
    Inventors: Rainer Dobrawa, Dieter Boeckh, Rajan K. Panandiker, Julie Menkhaus, Frank Huelskoetter
  • Patent number: 8754027
    Abstract: The present invention relates to an ethoxylated polyethylenimine polymer comprising (1) a polyethyleneimine backbone, (2) a polyoxyethylene chain wherein the polyoxyethylene chain has an average of 40 to 90 ethyleneoxide units per unit of NH in the polyethyleneimine backbone, (3) a quaternization degree of from 1% to less than 50%.
    Type: Grant
    Filed: May 9, 2013
    Date of Patent: June 17, 2014
    Assignee: BASF SE
    Inventors: Rainer Dobrawa, Sophia Ebert, Stefano Scialla, Frank Hulskotter, Gloria Di Capua, Patrick Delplancke, Marc Evers
  • Patent number: 8632763
    Abstract: The use of copolymers obtained by free-radical polymerization of a mixture of i) 30 to 80% by weight of N-vinyllactam, ii) 10 to 50% by weight of vinyl acetate, and iii) 10 to 50% by weight of a polyether, with the proviso that the total of components i), ii) and iii) equals 100% by weight, as solubilizers for slightly water-soluble substances.
    Type: Grant
    Filed: March 21, 2012
    Date of Patent: January 21, 2014
    Assignee: BASF SE
    Inventors: Nathalie Bouillo, Marianna Pierobon, Ralf Widmaier, Rainer Dobrawa, Kathrin Meyer-Böhm, Ronald Frans-Maria Lange
  • Publication number: 20130303725
    Abstract: The present invention relates to an ethoxylated polyethylenimine polymer consisting essentially of (a) a polyethyleneimine backbone, (b) a polyoxyethylene chain wherein the polyoxyethylene chain has an average of 1 to less than 40 ethyleneoxide units per unit of NH in the polyethyleneimine backbone, (3) a quaternization degree of from 50% to 100%.
    Type: Application
    Filed: May 9, 2013
    Publication date: November 14, 2013
    Applicant: BASF SE
    Inventors: Rainer Dobrawa, Sophia Ebert, Stegano Scialla, Frank Huelskoetter, Gloria Di Capua, Patrick Delplancke, Marc Evers, Melissa Cuthbertson, Glenn Ward, Anju Brooker, Plan Shean Lim, Michael Stanford Showell
  • Publication number: 20130281594
    Abstract: The present invention relates to a process for producing water-absorbent polymer particles by polymerizing droplets of a monomer solution in a surrounding heated gas phase and flowing the gas cocurrent through the polymerization chamber, wherein the temperature of the gas leaving the polymerization chamber is 130° C. or less, the gas velocity inside the polymerization chamber is at least 0.5 m/s, and the droplets are generated by using a droplet plate having a multitude of bores.
    Type: Application
    Filed: April 25, 2013
    Publication date: October 24, 2013
    Inventors: Rainer Dobrawa, Thomas Daniel, Uwe Stueven, Marco Krüger, Francisco Javier Lopez Villanueva, Norbert Herfert, Michael A. Mitchell
  • Publication number: 20130253089
    Abstract: The invention relates to a continuous process for the preparation of amphiphilic graft polymers, wherein a vinyl ester component (B) composed of vinyl acetate and/or vinyl propionate (B1) and, if desired, a further ethylenically unsaturated monomer (B2), is polymerized in the presence of a polyalkylene oxide (A), a free radical-forming initiator (C) and, if desired, an additive (D), at a mean polymerization temperature at which the initiator (C) has a decomposition half-time of from 1 to 500 min, in at least one tubular reactor segment with a feed side and an outlet side, through which the reaction mixture comprising at least a part of component (A) to (C), and if desired (D), streams, a tubular reactor segment and the use of the inventive amphiphilic graft polymer. The invention further relates to an inventive amphiphilic graft polymer and the use thereof.
    Type: Application
    Filed: March 7, 2013
    Publication date: September 26, 2013
    Applicant: BASF SE
    Inventors: Faissal-Ali El-Toufaili, Michaela Heussler, Christian Schwede, Aaron Flores-Figueroa, Rainer Dobrawa, Dieter Boeckh, Wolfgang Loth, Gerd Konrad
  • Patent number: 8536108
    Abstract: The present application relates to care polymers and fabric and home care compositions comprising such care polymers, as well as processes for making and using such care polymers and such compositions. The performance of the care polymers that Applicants teach, can be further increased by following the emulsification teaching of the present specification and/or combining such care polymers with silicone materials.
    Type: Grant
    Filed: May 11, 2011
    Date of Patent: September 17, 2013
    Assignee: The Procter & Gamble Company
    Inventors: Rajan Keshav Panandiker, Julie Ann Menkhaus, Dieter Boeckh, Rainer Dobrawa, Frank Huelskoetter, Valentin Cepus, Jack Tinsley, Klaus Muehlbach, Markus Brym, Sophia Ebert, Ivette Garcia Castro
  • Patent number: 8481159
    Abstract: The present invention relates to a process for producing water-absorbent polymer particles by polymerizing droplets of a monomer solution in a surrounding heated gas phase and flowing the gas cocurrent through the polymerization chamber, wherein the temperature of the gas leaving the polymerization chamber is 130° C. or less, the gas velocity inside the polymerization chamber is at least 0.5 m/s, and the droplets are generated by using a droplet plate having a multitude of bores.
    Type: Grant
    Filed: August 25, 2010
    Date of Patent: July 9, 2013
    Assignee: BASF SE
    Inventors: Rainer Dobrawa, Thomas Daniel, Uwe Stueven, Marco Krüger, Francisco Javier Lopez Villanueva, Norbert Herfert, Karin Flore, Stefan Blei, Michael A. Mitchell
  • Patent number: 8399585
    Abstract: A process for producing water-absorbing polymer particles with improved blood absorbence by polymerizing droplets of a monomer solution in a surrounding gas phase, wherein the monomer solution comprises a surfactant.
    Type: Grant
    Filed: August 23, 2010
    Date of Patent: March 19, 2013
    Assignee: BASF SE
    Inventors: Francisco Javier Lopez Villanueva, Markus Linsenbühler, Rainer Dobrawa, Bernd Siegel, Matthias Weismantel
  • Publication number: 20130059927
    Abstract: The present invention is directed to stable emulsions comprising polyolefins, in particular polyisobutene, the process to obtain said emulsions and the use of said emulsions.
    Type: Application
    Filed: May 11, 2011
    Publication date: March 7, 2013
    Applicant: BASF SE
    Inventors: Dieter Boeckh, Klaus Mühlbach, Markus Brym, Sopia Ebert, Ivette Garcia Castro, Jack Tinsley, Rainer Dobrawa, Valentin Cepus, Rajan K. Panandiker, Julie Menkhaus, Frank Huelskoetter
  • Publication number: 20120178728
    Abstract: The use of copolymers obtained by free-radical polymerization of a mixture of i) 30 to 80% by weight of N-vinyllactam, ii) 10 to 50% by weight of vinyl acetate, and iii) 10 to 50% by weight of a polyether, with the proviso that the total of components i), ii) and iii) equals 100% by weight, as solubilizers for slightly water-soluble substances.
    Type: Application
    Filed: March 21, 2012
    Publication date: July 12, 2012
    Applicant: BASF SE
    Inventors: Nathalie Bouillo, Marianna Pierobon, Ralf Widmaier, Rainer Dobrawa, Kathrin Meyer-Böhm, Ronald Frans Maria Lange
  • Patent number: 8211469
    Abstract: Use of polyvinyllactam-polyvinyl acetate block copolymers as solubilizers for active ingredients that are sparingly soluble in water.
    Type: Grant
    Filed: October 31, 2007
    Date of Patent: July 3, 2012
    Assignee: BASF SE
    Inventors: Yvonne Dieckmann, Murat Mertoglu, Rainer Dobrawa, Szilard Csihony, Cedric Dieleman, Torsten Knieriem, Sebastian Koltzenburg, Holger Türk, Ulrike Troppmann, Christian Michael Jung