Patents by Inventor Esteban Mejia

Esteban Mejia 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: 11883803
    Abstract: The present invention is directed to supported catalyst having utility in the polymerization and co-polymerization of epoxide monomers, said supported catalyst having the general Formula (I): [DMCC]*b Supp??(I) wherein: [DMCC] denotes a double metal cyanide complex which comprises a double metal cyanide (DMC) compound, at least one organic complexing agent and a metal salt; Supp denotes a hydrophobic support material; and, b represents the average proportion by weight of said support material, based on the total weight of [DMCC] and Supp, and is preferably in the range 1 wt. %?b?99 wt. %.
    Type: Grant
    Filed: December 16, 2020
    Date of Patent: January 30, 2024
    Assignee: Henkel AG & Co. KGaA
    Inventors: Jan-Erik Damke, Johann Klein, Marion Marquardt, Esteban Mejia, Udo Kragl
  • Patent number: 11879037
    Abstract: The present invention relates a hydroxyl-functionalized unimodal polysiloxane polyalkyleneglycol brush copolymer of the structure [A(-X—B)]s, wherein: A represents said polysiloxane backbone; B represents said polyalkyleneglycol side chain; X is a linker group characterized by including the moiety Si—C—C— of which said Si is a part of the polysiloxane backbone A; and s is an integer of from 1 to 100, wherein the polysiloxane backbone A contains less than 500 ppm mol % of SiH moiety based on the total moles of the silicon atom which constitutes the polysiloxane backbone, and said copolymer has a polydispersity index of from 1.3 to 5.0; and a method for producing said hydroxyl-functionalized unimodal polysiloxane polyalkyleneglycol brush copolymer.
    Type: Grant
    Filed: June 3, 2021
    Date of Patent: January 23, 2024
    Assignee: Henkel AG & Co. KGaA
    Inventors: Andrea Gutacker, Johann Klein, Annika Dietrich, Esteban Mejia, Therese Hemery, Nayereh Mohebbati
  • Publication number: 20230167138
    Abstract: The invention relates to silane compounds of the general formula (I) as defined herein containing at least one heteroatom bridged to a silicon atom via a sp2-hybridized quaternary carbon atom, a process for preparing the silane compounds, and the use of the silane compounds as end-capping agent, crosslinker, and/or adhesion promoter in curable compositions.
    Type: Application
    Filed: January 30, 2023
    Publication date: June 1, 2023
    Inventors: Ligang Zhao, Sebastien Lanau, Andrea Gutacker, Johann Klein, Ralf Dunekake, Markus Bonigut, Theresia Kohler, Esteban Mejia, Niklas Schafhausen
  • Publication number: 20230117393
    Abstract: The invention relates to a bi-functionalized polysiloxane brush copolymer comprising at least one hydroxyl-terminated polyalkyleneglycol side chain and at least one onium-functionalized side chain as defined herein, and a method for preparing the bi-functionalized polysiloxane brush copolymer, a curable composition comprising the bi-functionalized polysiloxane brush copolymer and its use.
    Type: Application
    Filed: December 21, 2022
    Publication date: April 20, 2023
    Inventors: Andrea Gutacker, Ligang Zhao, Johann Klein, Esteban Mejia, Annika Dietrich
  • Patent number: 11560445
    Abstract: The invention relates to a silylated polyurethane obtainable by reacting: d) at least one polyol having a number average molecular weight of from 1000 to 50,000 g/mol; e) at least one polyisocyanate, preferably diisocyanate; and f) at least one tertiary hydroxyl functional alkoxysilane of the general formula (I) wherein R1 is selected from the group consisting of hydrogen and a linear or branched, substituted or unsubstituted hydrocarbon residue having 1 to 20 carbon atoms; R2 and R3 are same or different and are, independent from one another, selected from a linear or branched, substituted or unsubstituted hydrocarbon residue having 1 to 20 carbon atoms; R4 is selected from a linear or branched, substituted or unsubstituted hydrocarbon residue having 1 to 20 carbon atoms; R5 is selected from a linear or branched, substituted or unsubstituted hydrocarbon residue having 1 to 20 carbon atoms; R6 and R7 are same or different and are, independent from one another, selected from a linear or branched, su
    Type: Grant
    Filed: June 5, 2020
    Date of Patent: January 24, 2023
    Assignee: Henkel AG & Co. KGaA
    Inventors: Jan-Erik Damke, Johann Klein, Rok Brisar, Esteban Mejia
  • Publication number: 20220363699
    Abstract: Disclosed is a tertiary hydroxyl functional alkoxysilane of the general formula (I) wherein R1 is selected from the group consisting of hydrogen and a linear or branched, substituted or unsubstituted hydrocarbon residue having 1 to 20 carbon atoms; R2 and R3 are same or different and are, independent from one another, selected from a linear or branched, substituted or unsubstituted hydrocarbon residue having 1 to 20 carbon atoms; R4 is selected from a linear or branched, substituted or unsubstituted hydrocarbon residue having 1 to 20 carbon atoms; R5 is selected from a linear or branched, substituted or unsubstituted hydrocarbon residue having 1 to 20 carbon atoms; R6 and R7 are same or different and are, independent from one another, selected from a linear or branched, substituted or unsubstituted hydrocarbon residue having 1 to 20 carbon atoms; and n is 1, 2 or 3, a method for preparing thereof, and the use of the tertiary hydroxyl functional alkoxysilane of the general formula (I).
    Type: Application
    Filed: July 20, 2022
    Publication date: November 17, 2022
    Inventors: Jan-Erik Damke, Johann Klein, Rok Brisar, Esteban Mejia
  • Patent number: 11370916
    Abstract: The invention relates to a curable composition comprising a) at least one polymer having at least one silicon-containing group of formula (1) —Si(R1)k(Y)3-k??(1), wherein each R1 is independently selected from a hydrocarbon radical containing 1 to 20 C atoms or a triorganosiloxane group of formula —O—Si(R2)3, wherein each R2 is independently selected from a hydrocarbon radical containing 1 to 20 C atoms; each Y is independently selected from a hydroxy group or a hydrolysable group; and k is 0, 1, or 2; b) at least one mixture of paramagnetic titanium complexes, characterized by a Landé g-factor of less than 2 detected by Electron Paramagnetic Resonance Spectroscopy; c) optionally, at least one compound which has a hydrolysable silicon-containing group and a molecular weight in the range of 100 to 1000 g/mol, an aminosilane preparations containing these compositions thereof.
    Type: Grant
    Filed: June 2, 2020
    Date of Patent: June 28, 2022
    Assignee: Henkel AG & Co. KGaA
    Inventors: Andrea Gutacker, Jan-Erik Damke, Johann Klein, Esteban Mejia
  • Patent number: 11326027
    Abstract: A method for producing a hydroxyl-functionalized polysiloxane having secondary or tertiary hydroxyl groups, said method comprising the steps of: i) reacting a hydroxyalkyl allyl ether having a secondary or tertiary alcohol group with a siloxane under anhydrous conditions and under transition metal catalysis, said hydroxylalkyl allyl ether conforming to Formula (I) wherein n is 0, 1, 2, 3, 4 or 5, preferably 0; m is 1, 2, 3, 4 or 5, preferably 1; spacer group A is constituted by a covalent bond or a C1-C20 alkylene group; R1 is hydrogen, a C1-C8 alkyl group, a C3-C10 cycloalkyl group, a C6-C18 aryl group or an aralkyl group; Ra, Rb, Rc, Rd, R2, R3, R4 and R5 may be the same or different and each is independently selected from hydrogen, a C1-C8 alkyl group, a C6-C18 aryl group or a C6-C18 aralkyl group, with the proviso that at least one of R3 and R4 is not hydrogen; and said siloxane conforming to Formula (II) wherein m is 1, 2, 3, 4 or 5, preferably 1; R6, R7, R8 and R9 may be
    Type: Grant
    Filed: June 14, 2019
    Date of Patent: May 10, 2022
    Assignee: Henkel AG & Co. KGaA
    Inventors: Marleen Winterberg, Marta Woznicka, Annika Dietrich, Esteban Mejia, Udo Kragl, Christina Despotopoulou, Ralf Dunekake, David Briers, Johann Klein, Henrik Lund
  • Patent number: 11306109
    Abstract: The present invention relates to a method for preparing silicon-containing heterocycles of the general formula (I) wherein R1 is hydrogen; R2 and R3 are same or different and are, independently from one another, selected from a linear or branched, substituted or unsubstituted C1-C20 alkyl or C6-C18 aryl residue which may be interrupted by at least one heteroatom; R4 is selected from a linear or branched C1-C20 alkylene residue which may be interrupted by at least one heteroatom; R5 and R6 are same or different and are, independently from one another, selected from the group consisting of hydrogen, a linear or branched, substituted or unsubstituted C1-C20 alkyl or C6-C18 aryl which may be interrupted by at least one heteroatom, and a C4-C8 cycloalkyl, or R5 and R6 may form a ring, a 4- to 8-membered alkyl ring; and n is 0, 1 or 2, 2, said method comprising a one-step reaction of at least one epoxide compound of the general formula (II) and at least one aminoalkoxysilane having a primary amino group in th
    Type: Grant
    Filed: January 17, 2020
    Date of Patent: April 19, 2022
    Assignee: Henkel AG & Co. KGaA
    Inventors: Jan-Erik Damke, Johann Klein, Esteban Mejia, Rok Brisar
  • Publication number: 20220089820
    Abstract: The present invention relates to an onium-functionalized siloxane having the general Formula (X) or (X-A) as defined herein; a method for preparing the onium-functionalized siloxane; and its use as an antimicrobial agent.
    Type: Application
    Filed: November 30, 2021
    Publication date: March 24, 2022
    Inventors: Andrea Gutacker, Christian Kastner, Johann Klein, Annika Dietrich, Esteban Mejia
  • Publication number: 20210292488
    Abstract: The present invention relates a hydroxyl-functionalized unimodal polysiloxane polyalkyleneglycol brush copolymer of the structure [A(-X—B)]s, wherein: A represents said polysiloxane backbone; B represents said polyalkyleneglycol side chain; X is a linker group characterized by including the moiety Si—C—C— of which said Si is a part of the polysiloxane backbone A; and s is an integer of from 1 to 100, wherein the polysiloxane backbone A contains less than 500 ppm mol % of SiH moiety based on the total moles of the silicon atom which constitutes the polysiloxane backbone, and said copolymer has a polydispersity index of from 1.3 to 5.0; and a method for producing said hydroxyl-functionalized unimodal polysiloxane polyalkyleneglycol brush copolymer.
    Type: Application
    Filed: June 3, 2021
    Publication date: September 23, 2021
    Inventors: Andrea Gutacker, Johann Klein, Annika Dietrich, Esteban Mejia, Therese Hemery, Nayereh Mohebbati
  • Publication number: 20210292486
    Abstract: The present invention relates to a procedure in which a functionalized polysiloxane is synthesized in the presence of a platinum catalyst, and halogen-functionalized polysiloxanes obtained according to the procedure. The procedure is defined herein by reacting a) at least one polysiloxane comprising at least one hydrogen atom bonded to a silicon atom; b) at least one heterocyclic compound; and c) at least one halogen-containing compound, wherein the reaction is catalyzed by at least one platinum catalyst. The synthetic pathway is described as a halosilation reaction in which a heterocyclic molecule is ring-opened in the presence of a platinum catalyst and a halogen source, resulting in a formal insertion of the opened heterocycle into the SiH bond. On the final product, the heteroatom of the former heterocycle is bonded to the silicon atom from the former hydrosiloxane moiety while the halogen is bonded to the last carbon atom of the opened chain.
    Type: Application
    Filed: June 1, 2021
    Publication date: September 23, 2021
    Inventors: Andrea Gutacker, Johann Klein, Annika Dietrich, Esteban Mejia, Therese Hemery
  • Publication number: 20210292484
    Abstract: The invention relates to a curable composition comprising: a) at least one polymer having at least one silicon-containing group of formula —Si(R1)k(Y)3-k as defined herein, and b) at least one hydroxyl-functionalized polysiloxane polyalkyleneglycol brush copolymer of the structure [A(-X—B)]s as defined herein; and an adhesive, sealant, or coating material comprising said curable composition and use thereof.
    Type: Application
    Filed: June 3, 2021
    Publication date: September 23, 2021
    Inventors: Andrea Gutacker, Johann Klein, Annika Dietrich, Esteban Mejia, Therese Hemery
  • Patent number: 11078323
    Abstract: The present invention discloses silylated polyurethanes obtainable by reacting at least one polyols, at least one polyisocyanates, at least one amide-functionalized silanes of the general formula (I) as described herein and their preparation methods, curable compositions comprising the silylated polyurethanes and their use as adhesive, sealant, spray foam and/or coating.
    Type: Grant
    Filed: October 18, 2019
    Date of Patent: August 3, 2021
    Assignee: Henkel AG & Co. KGaA
    Inventors: Rok Brisar, Udo Kragl, Jan-Erik Damke, Johann Klein, Esteban Mejia
  • Publication number: 20210147632
    Abstract: The invention relates to a process for preparing polyorganosiloxanes by (i) condensation polymerization of at least one linear organosiloxane which has at least one hydroxy group or hydrolysable group bound to a silicon atom, (ii) ring-opening polymerization of at least one cyclosiloxane, or (iii) ring-opening polymerization and condensation polymerization of a mixture of at least one linear organosiloxane which has at least one hydroxy group or hydrolysable group bound to a silicon atom and at least one cyclosiloxane with a basic initiator and a hydroxy group-containing compound in the presence of a polar aprotic solvent, wherein the obtained polyorganosiloxanes are not miscible in the polar aprotic solvent at room temperature.
    Type: Application
    Filed: January 26, 2021
    Publication date: May 20, 2021
    Inventors: Christina Despotopoulou, Johann Klein, Therese Hemery, Esteban Mejia, Udo Kragl, Theresia Koehler, Lea Grefe
  • Publication number: 20210122878
    Abstract: The present invention is directed to supported catalyst having utility in the polymerization and co-polymerization of epoxide monomers, said supported catalyst having the general Formula (I): [DMCC]*b Supp??(I) wherein: [DMCC] denotes a double metal cyanide complex which comprises a double metal cyanide (DMC) compound, at least one organic complexing agent and a metal salt; Supp denotes a hydrophobic support material; and, b represents the average proportion by weight of said support material, based on the total weight of [DMCC] and Supp, and is preferably in the range 1 wt. %?b?99 wt. %.
    Type: Application
    Filed: December 16, 2020
    Publication date: April 29, 2021
    Inventors: Jan-Erik Damke, Johann Klein, Marion Marquardt, Esteban Mejia, Udo Kragl
  • Publication number: 20210040269
    Abstract: The present invention is directed to a hydroxyl-functionalized polyether-polysiloxane block copolymer of the structure A(-X—B)n wherein: A represents said polysiloxane block; B represents said polyether block; X is a linker group characterized by including the moiety Si—C—C— of which said Si is the terminal silicon atom of the polysiloxane block A; and, n is an integer of from 2 to 4, said block copolymer being further characterized by a terminal unsaturation of less than 0.04 meq/g, preferably less than 0.03 meq/g and more preferably less than 0.025 meq/g and the method for producing thereof.
    Type: Application
    Filed: October 20, 2020
    Publication date: February 11, 2021
    Inventors: Marta Woznicka, Swarup Ghosh, Marion Marquardt, Esteban Mejia, Udo Kragl, Christina Despotopoulou, Jan-Erik Damke, Johann Klein
  • Patent number: 10889682
    Abstract: The present invention discloses silylated polyurethanes obtainable by reacting at least one polyols, at least one polyisocyanates, at least one silicon-containing heterocycle of the general formula (I): wherein R1 is hydrogen; R2 and R3 are same or different and are, independently from one another, selected from a linear or branched, substituted or unsubstituted C1-C20 alkyl or C6-C18 aryl residue which may be interrupted by at least one heteroatom; R4 is selected from a linear or branched, substituted or unsubstituted C1-C20 alkylene residue which may be interrupted by at least one heteroatom; R5 and R6 are same or different and are, independently from one another, selected from the group consisting of hydrogen, a linear or branched, substituted or unsubstituted C1-C20 alkyl or C6-C18 aryl which may be interrupted by at least one heteroatom, and a C4-C8 cycloalkyl, or R5 and R6 may form a ring, preferably a 4- to 8-membered alkyl ring; and n is 0, 1 or 2, their preparation methods, curable composition
    Type: Grant
    Filed: January 15, 2020
    Date of Patent: January 12, 2021
    Assignee: Henkel AG & Co. KGaA
    Inventors: Jan-Erik Damke, Johann Klein, Esteban Mejia, Rok Brisar
  • Publication number: 20200299450
    Abstract: The invention relates to a silylated polyurethane obtainable by reacting: d) at least one polyol having a number average molecular weight of from 1000 to 50,000 g/mol; e) at least one polyisocyanate, preferably diisocyanate; and f) at least one tertiary hydroxyl functional alkoxysilane of the general formula (I) wherein R1 is selected from the group consisting of hydrogen and a linear or branched, substituted or unsubstituted hydrocarbon residue having 1 to 20 carbon atoms; R2 and R3 are same or different and are, independent from one another, selected from a linear or branched, substituted or unsubstituted hydrocarbon residue having 1 to 20 carbon atoms; R4 is selected from a linear or branched, substituted or unsubstituted hydrocarbon residue having 1 to 20 carbon atoms; R5 is selected from a linear or branched, substituted or unsubstituted hydrocarbon residue having 1 to 20 carbon atoms; R6 and R7 are same or different and are, independent from one another, selected from a linear or branched, su
    Type: Application
    Filed: June 5, 2020
    Publication date: September 24, 2020
    Inventors: Jan-Erik Damke, Johann Klein, Rok Brisar, Esteban Mejia
  • Publication number: 20200299314
    Abstract: Disclosed is a tertiary hydroxyl functional alkoxysilane of the general formula (I) wherein R1 is selected from the group consisting of hydrogen and a linear or branched, substituted or unsubstituted hydrocarbon residue having 1 to 20 carbon atoms; R2 and R3 are same or different and are, independent from one another, selected from a linear or branched, substituted or unsubstituted hydrocarbon residue having 1 to 20 carbon atoms; R4 is selected from a linear or branched, substituted or unsubstituted hydrocarbon residue having 1 to 20 carbon atoms; R5 is selected from a linear or branched, substituted or unsubstituted hydrocarbon residue having 1 to 20 carbon atoms; R6 and R7 are same or different and are, independent from one another, selected from a linear or branched, substituted or unsubstituted hydrocarbon residue having 1 to 20 carbon atoms; and n is 1, 2 or 3, a method for preparing thereof, and the use of the tertiary hydroxyl functional alkoxysilane of the general formula (I).
    Type: Application
    Filed: June 11, 2020
    Publication date: September 24, 2020
    Inventors: Jan-Erik Damke, Johann Klein, Rok Brisar, Esteban Mejia