Patents by Inventor Ivette Garcia Castro

Ivette Garcia Castro 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).

  • Publication number: 20120130001
    Abstract: A method for producing composite materials which comprises in one step preparing modified cellulose fibers by treating (A) cellulose fibers with an aqueous emulsion of (B) at least one ethylene copolymer having a molecular weight Mn of up to 20 000 g/mol maximum and comprising as comonomers in incorporated form (a) 50% to 95% by weight of ethylene, (b) 5% to 50% by weight of at least one comonomer having at least one alkylated or cycloalkylated amino group which is connected via a spacer to a polymerizable group, (c) 0% to 30% by weight of other comonomers, and in a further step by mixing modified cellulose fibers with (C) at least one thermoplastic (D) and optionally one or more adjuvants.
    Type: Application
    Filed: August 3, 2010
    Publication date: May 24, 2012
    Inventors: Thomas Pfeiffer, Heike Pfistner, Szilard Csihony, Ivette Garcia Castro, Michael Neuss, Thomas Zelinski
  • Patent number: 8173583
    Abstract: The present invention relates to the use of cationic polymers obtainable by free-radical copolymerization of a) 60 to 99 mol % of at least one 1-vinylimidazole monomer, b) 1 to 40 mol % of at least one free-radically polymerizable quaternizable monomer b1) or methacrylic acid b2) and c) 0 to 30 mol % of at least one further free-radically copolymerizable monomer different from a) and b) in hair cosmetic preparations.
    Type: Grant
    Filed: August 6, 2007
    Date of Patent: May 8, 2012
    Assignee: BASF SE
    Inventors: Ivette Garcia Castro, Gabi Winter, Claudia Wood
  • Publication number: 20120005951
    Abstract: A copolymer with high chemical homogeneity, consisting of (A) 50 to 30% by weight of ethylene, (B) 50 to 70% by weight of C4- to C24-hydrocarbyl ester of (meth)acrylic acid, (C) 0 to 5% by weight of (meth)acrylic acid and (D) 0 to 10% by weight of copolymerizable monomers, obtainable by polymerizing a mixture of 80 to 60% by weight of ethylene, 20 to 40% by weight of (meth)acrylic acid and 0 to 10% by weight of copolymerizable monomers in a backmixing, continuous polymerization apparatus, and subsequently polymer-analogously esterifying the resulting copolymer with C4- to C24-hydrocarbinols. The inventive copolymer is suitable for improving the cold flow properties of fuel oils, for lowering the lower mixing temperature of cold flow improver additives into fuel oils, and for improving the filterability of fuel oils comprising cold flow improver additives.
    Type: Application
    Filed: July 5, 2011
    Publication date: January 12, 2012
    Applicant: BASF SE
    Inventors: Frank-Olaf Mähling, Jan Strittmatter, Irene Trötsch-Schaller, Ivette Garcia Castro, Michael Schroers, Uwe Rebholz
  • Publication number: 20110281782
    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: Application
    Filed: May 11, 2011
    Publication date: November 17, 2011
    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
  • Publication number: 20110271586
    Abstract: A terpolymer formed from (A) ethylene, (B) (i) C2- to C14-alkenyl esters of one or more aliphatic C1- to C20-monocarboxylic acids or (ii) C1- to C24-alkyl esters of acrylic acid or methacrylic acid and (C) olefinically unsaturated hydrocarbons selected from (iii) five- to seven-membered cycloalkenes and (iv) ?-olefins having 6 to 20 carbon atoms. The terpolymer mentioned is suitable as a cold flow improver in middle distillate fuels. It lowers the lower mixing temperature of cold flow improver additives into middle distillate fuels and improves the filterability of middle distillate fuels comprising cold flow improver additives.
    Type: Application
    Filed: May 5, 2011
    Publication date: November 10, 2011
    Applicant: BASF SE
    Inventors: Frank-Olaf MÄHLING, Jan Strittmatter, Irene Trötsch-Schaller, Ivette Garcia Castro, Thomas Zelinski
  • Publication number: 20110258917
    Abstract: Quaternized terpolymer formed from (A) ethylene, (B) C2-C14-alkenyl esters of one or more aliphatic C1-C20-monocarboxylic acids or C1-C24-alkyl esters of acrylic acid or of methacrylic acid and (Cq) ethylenically unsaturated monomers which comprise at least one tertiary nitrogen atom which is partly or fully in quaternized form. The quaternized terpolymer is suitable as a fuel additive for reducing or preventing deposits, for reducing fuel consumption and for minimizing power loss in direct-injection diesel engines, especially in diesel engines with common-rail injection systems.
    Type: Application
    Filed: April 25, 2011
    Publication date: October 27, 2011
    Applicant: BASF SE
    Inventors: Ivette Garcia Castro, Cornelia Roeger-Goepfert, Wolfgang Grabarse, Klaus Mühlbach, Ludwig Völkel, Harald Böhnke, Christian Tock
  • Publication number: 20110253010
    Abstract: An aqueous paint formulation composed of an aqueous basecoat and an aqueous dispersion of an at least partially neutralized ethylene copolymer wax which is selected from ethylene copolymer waxes comprising as comonomers in copolymerized form: (A) 12% to 40% of an ethylenically unsaturated carboxylic acid of the formula I, where R1 and R2 are hydrogen and/or C1-C10alkyl; (B) 60% to 88% of ethylene; (C) 0% to 10% of a further comonomer; or (A?) 5% to 50% of a comonomer of the formula II where R1 and R2 are hydrogen and/or C1-C10alkyl, R3 is hydrogen, C1-C10alkyl and/or C3-C12cycloalkyl, where two radicals R3 may be joined to form a ring, X is oxygen, sulfur and/or N—R4, R4 is C1-C10alkyl or hydrogen, and A1 is a divalent group; (B?) 50% to 95% by weight of ethylene, and (C?) zero to 20% by weight of a further comonomer; where the ethylene copolymer waxes (A)(B)(C) and (A?)(B?)(C?) have a molecular weight 10 000 to 100 000 and 5000 to 40 000 g/mol, respectively; and the use thereo
    Type: Application
    Filed: March 25, 2011
    Publication date: October 20, 2011
    Applicant: BASF SE
    Inventors: Szilard CSIHONY, Ivette Garcia Castro, Heike Pfistner, Eva Wagner, Pia Baum, Christian Hubert Weidl
  • Publication number: 20110015280
    Abstract: The present invention relates to an ampholytic copolymer, to a process for its preparation, to cosmetic or pharmaceutical compositions which comprise at least one such ampholytic copolymer, and to further uses of these copolymers.
    Type: Application
    Filed: July 21, 2006
    Publication date: January 20, 2011
    Applicant: BASF AKTIENGESELLSCHAFT
    Inventors: Son Nguyen Kim, Ivette Garcia Castro, Klemens Mathauer
  • Publication number: 20100209361
    Abstract: The present invention relates to a copolymer with high cationic charge based on quaternized nitrogen-containing monomers, to cosmetic or pharmaceutical compositions which comprise at least one such copolymer, and to further uses of these copolymers.
    Type: Application
    Filed: July 1, 2008
    Publication date: August 19, 2010
    Applicant: BASF SE
    Inventors: Nicole Meier, Ivette Garcia Castro, Claudia Wood, Jessica Staub
  • Publication number: 20100179082
    Abstract: The present invention relates to the use of cationic polymers obtainable by free-radical copolymerization of a) 60 to 99 mol % of at least one 1-vinylimidazole monomer, b) 1 to 40 mol % of at least one free-radically polymerizable quaternizable monomer b1) or methacrylic acid b2) and c) 0 to 30 mol % of at least one further free-radically copolymerizable monomer different from a) and b) in hair cosmetic preparations.
    Type: Application
    Filed: August 6, 2007
    Publication date: July 15, 2010
    Applicant: BASF SE
    Inventors: Ivette Garcia Castro, Gabi Winter, Claudia Wood
  • Publication number: 20100119468
    Abstract: The present invention relates to compositions comprising at least one polymer a) having cationic and/or cationogenic groups and a molecular weight Mw in the range from 10 000 to 5 million and at least one polymer b) which has been prepared in the presence of polymer a).
    Type: Application
    Filed: January 31, 2008
    Publication date: May 13, 2010
    Applicant: BASF SE
    Inventors: Ivette Garcia Castro, Hubertus Peter Bell, Olga Pinneker, Claudia Wood, Gabi Winter, Nicole Meier
  • Patent number: 7666935
    Abstract: Aqueous solutions comprising: one or more polymeric components selected from the group consisting of homopolymers of N-vinylpyrrolidone, copolymers of N-vinylpyrrolidone, and mixtures thereof; and hydrogen peroxide; wherein the hydrogen peroxide is present in an amount of 100 to 5000 ppm; and methods of stabilizing aqueous solutions containing one or more polymeric components selected from the group consisting of homopolymers of N-vinylpyrrolidone, copolymers of N-vinylpyrrolidone, and mixtures thereof.
    Type: Grant
    Filed: October 6, 2005
    Date of Patent: February 23, 2010
    Assignee: BASF SE
    Inventors: Erik Bohrer, Dieter Faul, Ivette Garcia Castro, Norbert Gebhardt, Peter Hössel, Peter Mendera, Olga Pinneker, Bernd de Potzolli, Stefan Stein, Karl-Hermann Strube, Ralf Widmaier, Josef Neutzner, Simone Lehnert
  • Publication number: 20100040573
    Abstract: The present invention relates to a method for producing polymers by radically polymerizing a mixture comprising 99.99 to 10% by weight of at least one ?,?-ethylenically unsaturated compound with at least one cationogenic and/or cationic group per molecule, 0 to less than 25% by weight of at least one monoethylenically unsaturated amide-group-containing compound different from a) and also 0.01 to 5% by weight of a crosslinker using at least two different water-insoluble initiators.
    Type: Application
    Filed: September 14, 2007
    Publication date: February 18, 2010
    Applicant: BASF SE
    Inventors: Ivette Garcia Castro, Son Nguyen Kim, Wolfgang Jahnel, Matthias Laubender, Rolf Werner
  • Publication number: 20090060859
    Abstract: The present invention relates to the use of imidazolium alkyl(meth)acrylate homo- and copolymers in cosmetic preparations and to the corresponding cosmetic preparations.
    Type: Application
    Filed: August 29, 2008
    Publication date: March 5, 2009
    Applicant: BASF SE
    Inventors: Ivette Garcia Castro, Yvonne Dieckmann, Ingrid Haupt
  • Publication number: 20080227871
    Abstract: The following invention relates to copolymers containing silicone groups which comprise, in copolymerized form, at least one monomer with an ionogenic and/or ionic group and at least one crosslinking monomer, to a process for the preparation of such copolymers containing silicone groups by precipitation polymerization, and to the use of these copolymers.
    Type: Application
    Filed: July 21, 2006
    Publication date: September 18, 2008
    Applicant: BASF AKTIENGESELLSCHAFT
    Inventors: Son Nguyen Kim, Ivette Garcia Castro, Klemens Mathauer
  • Publication number: 20080193405
    Abstract: The present invention relates to the use of, if appropriate present in the form of an aqueous dispersion, polymers of ethylenically unsaturated anionic monomers for modifying the rheology of aqueous, alcoholic or aqueous/alcoholic cosmetic or dermatological compositions. The polymers are obtainable by free-radical emulsion copolymerization of water-soluble inorganic monomers in aqueous phase in the presence of, in each case, at least one stabilizing polymer of groups a) and b). The emulsion polymers are exceptionally suitable for thickening cosmetic or dermatological preparations based either on water or on alcohols.
    Type: Application
    Filed: January 24, 2006
    Publication date: August 14, 2008
    Applicant: BASF Aktiengesellschaft
    Inventors: Pilakesh Mukherjee, Klemens Mathauer, Claudia Wood, Matthias Laubender, Ivette Garcia Castro, Volker Wendel, Helmuth Vollmar, Audrey Renoncourt
  • Publication number: 20080194708
    Abstract: The present invention relates to the use of a water-soluble or water-dispersible crosslinked polymer obtainable by the polymerization of a mixture comprising 99.99 to 10% by weight of at least one ?,?-ethylenically unsaturated compound having at least one cationogenic and/or cationic group per molecule, 0 to 90% by weight of at least one monoethylenically unsaturated compound containing amide groups which differs from a), and 0.01 to 5% by weight of a crosslinking agent for modifying the rheology of aqueous compositions.
    Type: Application
    Filed: March 16, 2006
    Publication date: August 14, 2008
    Applicant: BASF Aktiengesellschaft
    Inventors: Peter Hossel, Klemens Mathauer, Claudia Wood, Matthias Laubender, Wolfgang Jahnel, Ivette Garcia Castro, Volker Wendel, Karl Kolter
  • Publication number: 20080182773
    Abstract: The invention relates to the use of mixtures of polymers comprising amine groups and polymers comprising amide groups for modifying the rheology of compositions comprising water, and to rheology modifying methods. In particular, the invention relates to the use of these mixtures for the thickening of compositions comprising water for cosmetic, human and animal nutrition, dermatology, pharmacy and detergents and cleaners, crop protection, surface modification and during petroleum production, such as, for example, enhanced oil recovery.
    Type: Application
    Filed: March 23, 2006
    Publication date: July 31, 2008
    Applicant: BASF Aktiengesellschaft
    Inventors: Werner Gauweiler, Volker Braig, Ivette Garcia Castro, Son Nguyen-Kim, Matthias Laubender, Marcus Guzmann, Olga Pinneker
  • Publication number: 20080139724
    Abstract: Method for stabilizing polyvinylpyrrolidones, which comprises treating the polyvinylpyrrolidones with sulfur dioxide, sulfurous acid or alkali metal sulfites and then with free-radical scavenger, and converting the solutions treated in this way into the powdered polyvinylpyrrolidones by drying.
    Type: Application
    Filed: February 8, 2006
    Publication date: June 12, 2008
    Applicant: BASF AKTIENGESELLSCHAFT
    Inventors: Karl Kolter, Ivette Garcia Castro, Olga Pinneker, Ralf Widmaier, Karl-Hermann Strube, Bernhard Fussnegger, Manfred Kroll, Frank Hofer, Hermann Ascherl, Peter Schmidt