Patents by Inventor Elisabet Graupera

Elisabet Graupera 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: 20150065604
    Abstract: A paint or lacquer composition including microcapsules, which microcapsules are prepared according to the process including: (a) providing a mixture of an active and a polyvinylether; (b) polymerizing the mixture with maleic anhydride to form a copolymer matrix; and (c) cross-linking the copolymer matrix with a melamine-formalin resin to encapsulate the active in microcapsules with an average diameter of about 0.1 to about 25 ?m for incorporating into a paint or a lacquer composition is provided.
    Type: Application
    Filed: November 7, 2014
    Publication date: March 5, 2015
    Inventors: Joaquin Bigorra Llosas, Elisabet Graupera, Bernd Fabry, Raymond Mathis, Paul Birnbrich
  • Patent number: 8758790
    Abstract: The invention provides microcapsules having an average diameter of 0.1 to 25 ?m, obtained by a process (a) or (b), wherein, (a1) preparing an aqueous emulsion comprising actives and optionally oil components and/or emulsifiers; (a2) treating the emulsifier with an aqueous solution of anionic polymers to form a matrix; (a3) contacting the matrix with an aqueous solution of cationic polymers to form a capsule and optionally (a4) separating the aqueous phase from the capsules, or (b1) preparing an aqueous emulsion containing actives and optionally oil components and/or emulsifiers; (b2) treating the aqueous emulsion with an aqueous solution of cationic polymers to form a matrix; (b3) contacting the matrix with an aqueous solution of an anionic polymer to form a capsule and optionally (b4) separating the aqueous phase from the capsule. The microcapsules are useful in paint and lacquer formulations.
    Type: Grant
    Filed: February 8, 2007
    Date of Patent: June 24, 2014
    Assignee: Cognis IP Management GmbH
    Inventors: Joaquin Bigorra Llosas, Josep-Lluis Viladot Petit, Elisabet Graupera, Otilia Par, Heinz-Guenther Schulte, Andres Ortuno
  • Patent number: 8148454
    Abstract: Disclosed is the use of glycerol acetals as coalescent agents and/or solvents for making lacquers and paints.
    Type: Grant
    Filed: October 11, 2008
    Date of Patent: April 3, 2012
    Assignee: Cognis IP Management GmbH
    Inventors: Joaquin Bigorra Llosas, Setsuo Sato, Ramiro Carielo Bueno, Elisabet Graupera
  • Publication number: 20100216926
    Abstract: Disclosed is the use of glycerol acetals as coalescent agents and/or solvents for making lacquers and paints.
    Type: Application
    Filed: October 11, 2008
    Publication date: August 26, 2010
    Applicant: COGNIS IP MANAGEMENT GMBH
    Inventors: Joaquin Bigorra Llosas, Setsuo Sato, Ramiro Carielo Bueno, Elisabet Graupera
  • Publication number: 20080039551
    Abstract: A paint or lacquer composition including microcapsules, which microcapsules are prepared according to the process including: (a) providing a mixture of an active and a polyvinylether; (b) polymerizing the mixture with maleic anhydride to form a copolymer matrix; and (c) cross-linking the copolymer matrix with a melamine-formalin resin to encapsulate the active in microcapsules with an average diameter of about 0.1 to about 25 ?m for incorporating into a paint or a lacquer composition is provided.
    Type: Application
    Filed: April 24, 2007
    Publication date: February 14, 2008
    Inventors: Joaquin Bigorra Llosas, Elisabet Graupera, Bernd Fabry, Raymond Mathis, Paul Birnbrich
  • Publication number: 20070202139
    Abstract: The invention provides microcapsules having an average diameter of 0.1 to 25 ?m, obtained by a process (a) or (b), wherein, (a1) preparing an aqueous emulsion comprising actives and optionally oil components and/or emulsifiers; (a2) treating the emulsifier with an aqueous solution of anionic polymers to form a matrix; (a3) contacting the matrix with an aqueous solution of cationic polymers to form a capsule and optionally (a4) separating the aqueous phase from the capsules, or (b1) preparing an aqueous emulsion containing actives and optionally oil components and/or emulsifiers; (b2) treating the aqueous emulsion with an aqueous solution of cationic polymers to form a matrix; (b3) contacting the matrix with an aqueous solution of an anionic polymer to form a capsule and optionally (b4) separating the aqueous phase from the capsule. The microcapsules are useful in paint and lacquer formulations.
    Type: Application
    Filed: February 8, 2007
    Publication date: August 30, 2007
    Inventors: Joaquin Bigorra Llosas, Josep-Lluis Viladot Petit, Elisabet Graupera, Otilia Par, Heinz-Guenther Schulte, Andres Ortuno
  • Publication number: 20070014746
    Abstract: An emulsion comprising polymers and method for making same is provided. The polymers consist of the following monomers: (a) 20 to 55% by weight acrylic and/or methacrylic acid; (b) 40 to 80% by weight C1-C4 alkyl (meth)acrylates; (c) 1 to 40% by weight of a maleic acid ester according to general formula (I) R2OOC—CH?CH—COO(CH2CH2O)nR1??(I) wherein R1 represents a linear or branched alkyl, aryl or alkaryl radical having 8 to 22 carbon atoms, R2 represents hydrogen or (CH2CH2O)nR1 and n represents a number between 2 and 150, (d) 0 to 15% by weight of aralphatic compounds having at least one double bond in the aliphatic side chain; and (e) 0 to 1% by weight polyethylenic unsaturated cross-linking monomers, wherein the amounts of components (a) to (e) total 100% by weight.
    Type: Application
    Filed: May 11, 2006
    Publication date: January 18, 2007
    Inventors: Joaquin Bigorra Llosas, Maria Escoda, Otilia Par, Heinz-Guenther Schulte, Elisabet Graupera