Patents by Inventor Gijsbert Gerritsen

Gijsbert Gerritsen 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: 10570085
    Abstract: Set forth is a process for preparing acrylic acid and/or the ester of acrylic acid and lactic acid from a lactic acid oligomer or polymer. As a result of the use of a bromide source and/or a chloride source in combination with a specific acid, a process that can be operated to obtain a high yield, and is relatively easy to perform, is realized.
    Type: Grant
    Filed: December 21, 2016
    Date of Patent: February 25, 2020
    Assignee: PURAC BIOCHEM B.V.
    Inventors: Bastiaan J. V. Verkuijl, Jan Van Krieken, Frédéric G. Terrade, Elisabeth Bouwman, Gijsbert Gerritsen, Jos Wilting
  • Publication number: 20180370895
    Abstract: A process for preparing acrylic acid and/or the ester of acrylic acid and lactic acid from a lactic acid oligomer or polymer, comprising the steps of bringing a reaction mixture comprising the lactic acid oligomer or polymer to reaction conditions to form acrylic acid and/or the ester of acrylic acid and lactic acid, the reacting mixture comprising a halide source selected from a bromide source and/or a chloride source and optionally an acid selected from the group of acids with a pKa of at most 2.0 and compounds which under reaction conditions decompose under the formation of an acid with a pKa of at most 2.0, with the reaction mixture comprising less than 1 wt. % of water, and keeping the reaction mixture under reaction conditions for a time sufficient to produce acrylic acid and/or the ester of acrylic acid and lactic acid.
    Type: Application
    Filed: December 21, 2016
    Publication date: December 27, 2018
    Applicant: PURAC BIOCHEM B.V.
    Inventors: Bastiaan J.V. VERKUIJL, Jan VAN KRIEKEN, Frédéric G. TERRADE, Elisabeth BOUWMAN, Gijsbert GERRITSEN, Jos WILTING
  • Patent number: 9029483
    Abstract: Polyhedral oligomeric silsesquioxanes (POSS) linked ligand of the general formula (I) L[(R1a)n-1(SiO1,5)nR2a]k[(R1b)n-1SiO1,5)nR2b]l[(R1c)n-1SiO1,5)nR2c]m??(I) in which (R1a,b,c)n-1(SiO1,5)n is a polyhedral oligomeric silsesquioxanes (POSS) with n=4, 6, 8, 10, 12, 14, 16 or 18 and R1a, R1b, R1c is each independently selected from the group consisting of same or different branched or linear C1-C20 alkyl chains, cyclo alkyl, C1-C20 alkoxy, aryl, aryloxy, heteroaryl and arylalkyl groups, k, l, m is 0 or 1 provided that k+l+m?1, R2a, R2b, R2c is a spacer that binds the polyhedral oligomeric silsesquioxane (POSS) to the ligand L and ligand L is an uncharged electron donor.
    Type: Grant
    Filed: February 28, 2011
    Date of Patent: May 12, 2015
    Assignee: Evonik Degussa GmbH
    Inventors: Cengiz Azap, Dorit Wolf, Hendrikus Cornelis Louis Abbenhuis, Gijsbert Gerritsen, Karol Grela, Jos B. M. Wilting, Kinga Leszczynska, Justyna Czaban, Anna Wojtasiewicz
  • Patent number: 8796345
    Abstract: A method to form a urethane material, the method comprises blending and reacting at least one isocyanate, at least one isocyanate reactive compound and a metallized polyhedral oligomeric silsesquioxane to provide said urethane material, the metallized polyhedral oligomeric silsesquioxane is a dimeric structure with general formula wherein M represents a metal providing a 6-coordinated metal center, x and y being 1, R1O and R2O represent an alkoxide bridging the 6-coordinated metal centers, R3OH and R4OH represent an alcohol ligand and each of R5, to R18 is selected from the group consisting of alkyl-, polyether- and polyester ligands.
    Type: Grant
    Filed: December 8, 2010
    Date of Patent: August 5, 2014
    Assignee: Huntsman International LLC
    Inventors: Rene Alexander Klein, Christina Marinus, Chris Ian Lindsay, Hendrikus Abbenhuis, Jos Wilting, Gijsbert Gerritsen
  • Publication number: 20130131284
    Abstract: Polyhedral oligomeric silsesquioxanes (POSS) linked ligand of the general formula (I) L[(R1a)n-1(SiO1,5)nR2a]k[(R1b)n-1SiO1,5)nR2b]l[(R1c)n-1SiO1,5)nR2c]m??(I) in which (R1a,b,c)n-1(SiO1,5)n is a polyhedral oligomeric silsesquioxanes (POSS) with n=4, 6, 8, 10, 12, 14, 16 or 18 and R1a, R1b, R1c is each independently selected from the group consisting of same or different branched or linear C1-C20 alkyl chains, cyclo alkyl, C1-C20 alkoxy, aryl, aryloxy, heteroaryl and arylalkyl groups, k, l, m is 0 or 1 provided that k+l+m?1, R2a, R2b, R2c is a spacer that binds the polyhedral oligomeric silsesquioxane (POSS) to the ligand L and ligand L is an uncharged electron donor.
    Type: Application
    Filed: February 28, 2011
    Publication date: May 23, 2013
    Applicant: Evonik Degussa GmbH
    Inventors: Cengiz Azap, Dorit Wolf, Hendrikus Cornelis Louis Abbenhuis, Gijsbert Gerritsen, Karol Grela, Jos B.M. Wilting, Kinga Leszczynska, Justyna Czaban, Anna Wojtasiewicz
  • Publication number: 20120264840
    Abstract: A method to form a urethane material, the method comprises blending and reacting at least one isocyanate, at least one isocyanate reactive compound and a metallized polyhedral oligomeric silsesquioxane to provide said urethane material, the metallized polyhedral oligomeric silsesquioxane is a dimeric structure with general formula wherein M represents a metal providing a 6-coordinated metal center, x and y being 1, R1O and R2O represent an alkoxide bridging the 6-coordinated metal centers, R3OH and R4OH represent an alcohol ligand and each of R5, to R18 is selected from the group consisting of alkyl-, polyether- and polyester ligands.
    Type: Application
    Filed: December 8, 2010
    Publication date: October 18, 2012
    Applicant: Huntsman International LLC
    Inventors: Rene Alexander Klein, Christina Marinus, Chris Ian Lindsay, Hendrikus Abbenhuis, Jos Wilting, Gijsbert Gerritsen