Patents by Inventor Frederik Piestert

Frederik Piestert 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: 20210198407
    Abstract: A grafted polylactic acid is provided, wherein the grafted polylactic acid contains carboxylic acid end groups in an amount from 1.0 to 10.0 mg KOH/g and contains epoxide groups in an amount from 0.005 to 0.500 mmol/g.
    Type: Application
    Filed: July 11, 2019
    Publication date: July 1, 2021
    Inventors: Inno Rapthel, Frederik Piestert, Andre Rapthel, Thorsten Kröller, Patricia Oostendorp, Lisa Bachmann
  • Patent number: 11015026
    Abstract: The invention relates to polyesters of the following general formula, wherein the residues R1, R2, R3, R4, R5a (as a special case of residue R5), R6, R7 and R8 are free of carboxy, hydroxy, thiol, imino, and primary and secondary amino groups, the residues R5b (as a special case of R5) and R9 contain hydroxyl groups, 10 to 100 mol % of which can be present in salt form analogously to polymers or otherwise capped, u=0 or 1, v=1 to 60 and w=1 to 20. The invention further relates to wetting agents and dispersants that contain the aforementioned polyesters or consist thereof and to a method for producing said wetting agents and dispersants, to the use of the polyesters and reaction products of the method according to the invention as wetting agents and dispersants, and to compositions containing the polyesters, wetting agents and/or dispersants or reaction products of the method according to the invention and particulate solids.
    Type: Grant
    Filed: November 14, 2017
    Date of Patent: May 25, 2021
    Assignee: BYK-CHEMIE GMBH
    Inventors: Michael Bessel, Guillaume Wojciech Jaunky, Frederik Piestert, Carsten Nagel, Sandra Sabrina Meyer, Dennis Levering
  • Publication number: 20200339793
    Abstract: The invention relates to a composition comprising a) a thermoplastic matrix polymer based on one or more ethylenically unsaturated polymerizable monomer(s), wherein the thermoplastic polymer is selected from the group consisting of polyolefins, polystyrene, polyacrylates, ethylene-vinylacetate copolymer, and copolymers and blends of the aforementioned, b) an inorganic flame retardant, c) a polymer based on one or more ethylenically unsaturated polymerizable monomers and having a plurality of alkoxysilane and/or acetoxysilane groups covalently linked to the polymer, wherein the ethylenically unsaturated polymerizable monomers of component c) are different or have a different composition than the ethylenically unsaturated monomer(s) of component a) and d) a clay.
    Type: Application
    Filed: December 13, 2018
    Publication date: October 29, 2020
    Inventors: Frederik Piestert, Inno Rapthel, Thorsten Kröller, Jochen Wilms, Dennis Levering, Markus Borth, Hans-Jürgen Eichler, Patricia Giesen
  • Publication number: 20200332111
    Abstract: The invention relates to a process of preparing a polyolefin polylactic acid polymer blend comprising the steps of i) providing a polyolefin selected from polyethylene, polypropylene, and mixtures and copolymers thereof, ii) providing polylactic acid, iii) providing a polyolefin selected from polyethylene, polypropylene, and mixtures and copolymers thereof grafted with at least one epoxide-functional monomer, iv) providing a polylactic acid grafted with at least one carboxylic acid or carboxylic anhydride functional monomer, v) mixing the components i) to iv) at elevated temperature in a range from 150° C. to 260° C., and wherein component i) is provided in an amount of 5.0 to 50.0% by weight, component ii) is provided in an amount of 40.0 to 90.0% by weight, component iii) is provided in an amount of 1.0 to 20.0% by weight, and component iv) is provided in an amount of 1.0 to 15.0% by weight, calculated on the sum of components i) to iv).
    Type: Application
    Filed: October 11, 2018
    Publication date: October 22, 2020
    Inventors: Inno Rapthel, Frederik Piestert, Andre Rapthel, Thorsten Kröller
  • Publication number: 20200207946
    Abstract: The invention relates to the use of a branched polyester having an average of at least 2.8 terminal groups as additive for a curable pre-polymer composition, wherein the branched polyester acts as de-foaming agent.
    Type: Application
    Filed: August 20, 2018
    Publication date: July 2, 2020
    Inventors: Frederik Piestert, Lee Robyn Gunning, Dennis Levering, Torsten Oelmann, Christian Biecker, Sascha Kockoth, Thorsten Kröller
  • Patent number: 10557015
    Abstract: The invention relates to a two-component or multi-component system having at least one epoxy resin component (1) that comprises i. at least one epoxy resin, ii. at least one inorganic thickener (a1) and iii. at least one wetting and dispersing agent (a2) that inhibits the thickening effect of said inorganic thickener (a1); as well as a curing component (2) which comprises i.) at least one component (b1) that at least partially cancels the inhibition of the thickening effect of the inorganic thickener (a1); said wetting and dispersing agent (a2) being non-reactive to the at least one epoxy resin, and the curing component (2) being reactive to said epoxy resin component (1). The invention also relates to substrates coated with a two-component or multi-component system according to the invention. The invention also relates to the use of a combination of (a1) and (a2) in epoxy resin compositions, in order to give the formulation a latent thickening effect.
    Type: Grant
    Filed: June 23, 2015
    Date of Patent: February 11, 2020
    Assignee: BYK-Chemie GmbH
    Inventors: Frederik Piestert, Wolfgang Pritschins, Sascha Kockoth, Jürgen Omeis
  • Publication number: 20190359777
    Abstract: The invention relates to polyesters of the following general formula, wherein the residues R1, R2, R3, R4, R5a (as a special case of residue R5), R6, R7 and R8 are free of carboxy, hydroxy, thiol, imino, and primary and secondary amino groups, the residues R5b (as a special case of R5) and R9 contain hydroxyl groups, 10 to 100 mol % of which can be present in salt form analogously to polymers or otherwise capped, u=0 or 1, v=1 to 60 and w=1 to 20. The invention further relates to wetting agents and dispersants that contain the aforementioned polyesters or consist thereof and to a method for producing said wetting agents and dispersants, to the use of the polyesters and reaction products of the method according to the invention as wetting agents and dispersants, and to compositions containing the polyesters, wetting agents and/or dispersants or reaction products of the method according to the invention and particulate solids.
    Type: Application
    Filed: November 14, 2017
    Publication date: November 28, 2019
    Inventors: Michael Bessel, Guillaume Wojciech Jaunky, Frederik Piestert, Carsten Nagel, Sandra Sabrina Meyer, Dennis Levering
  • Patent number: 10392494
    Abstract: The invention relates to rheology control kits for thickening two- or multi-component systems, comprising at least one module A containing (a1) at least one inorganic thickener and (a2) at least one wetting and dispersing agent that inhibits the thickening effect of the inorganic thickener (a1) and at least one module B containing (b1) at least one polymer that at least partially removes the inhibition of the thickening effect of the inorganic thickener (a1). The invention also relates to two- and multi-component systems into which modules can be incorporated, latent thickeners comprising module A and the use of latent thickeners in order to equip components with a latent thickening effect.
    Type: Grant
    Filed: June 23, 2015
    Date of Patent: August 27, 2019
    Assignee: BYK-Chemie GmbH
    Inventors: Frederik Piestert, Wolfgang Pritschins, Sascha Kockoth, Jürgen Omeis
  • Patent number: 10253133
    Abstract: A reaction product containing urethane groups, comprising one or more species of the general formula (I) (R1—X)p—Z1—(XH)y??(I) where p+y=w and w is an integer from 2 to 10, p is an integer from 2 to 10, y is an integer from 0 to 8, and X is independently O, NH and/or NZ2 and XH is independently a hydroxyl group OH, a primary amino group NH2 and/or a secondary amino group NHZ2 where Z2 is independently a branched or unbranched, saturated or unsaturated organic radical G(U)a where U is independently a hydroxyl group, a primary amino group or a secondary amino group and a is an integer from 0 to 8, where w+a?10, G is a branched or unbranched, saturated or unsaturated organic radical, the p R1 radicals are independently a radical of the general formula (II) Y—O—CO—NH—R2—NH—CO??(II) in which the p Y radicals are independently a branched or unbranched, saturated or unsaturated organic radical which has 1 to 1000 carbon atoms and does not contain any hydroxyl groups, any primary amino groups or any secondary ami
    Type: Grant
    Filed: June 3, 2016
    Date of Patent: April 9, 2019
    Assignee: BYK-Chemie, GmbH
    Inventors: Bernd Göbelt, Andreas Okkel, Frederik Piestert, Wolfgang Pritschins, Jürgen Omeis, Jörg Bömer, Jennifer Heitzer, Eva Hoverath, Sabine Stelz, Werner Tiegs
  • Publication number: 20180148532
    Abstract: A reaction product containing urethane groups, comprising one or more species of the general formula (I) (R1—X)p—Z1—(XH)y??(I) where p+y=w and w is an integer from 2 to 10, p is an integer from 2 to 10, y is an integer from 0 to 8, and X is independently O, NH and/or NZ2 and XH is independently a hydroxyl group OH, a primary amino group NH2 and/or a secondary amino group NHZ2 where Z2 is independently a branched or unbranched, saturated or unsaturated organic radical G(U)a where U is independently a hydroxyl group, a primary amino group or a secondary amino group and a is an integer from 0 to 8, where w+a?10, G is a branched or unbranched, saturated or unsaturated organic radical, the p R1 radicals are independently a radical of the general formula (II) Y—O—CO—NH—R2—NH—CO??(II) in which the p Y radicals are independently a branched or unbranched, saturated or unsaturated organic radical which has 1 to 1000 carbon atoms and does not contain any hydroxyl groups, any primary amino groups or any secondary
    Type: Application
    Filed: June 3, 2016
    Publication date: May 31, 2018
    Inventors: Bernd GÖBELT, Andreas OKKEL, Frederik PIESTERT, Wolfgang PRITSCHINS, Jürgen OMEIS, Jörg BÖMER, Jennifer HEITZER, Eva HOVERATH, Sabine STELZ, Werner TIEGS
  • Patent number: 9822234
    Abstract: The invention relates to a use of at least one condensation product (A) in the form of the free compound or in the form of a salt of at least one acid as a thixotropy-increasing additive, which condensation product can be obtained by reacting at least one polymerized fatty acid or at least one reaction product (U) of at least two polymerized fatty acids and at least one polyamine having at least two primary amino groups as component (a1) with at least one polyalkylene polyamine, which is capable of forming at least one imidazoline and/or tetrahydropyrimidine unit and which has at least two primary amino groups or at least one primary and at least one secondary amino group, a composition containing at least one such condensation product (A) and at least one thixotropic agent (B), and a use of said composition, which additionally comprises at least one binder (C), as an adhesive, sealant, paint, coating agent, adhesive resin, casting resin, artificial marble, floor covering, polymer concrete, or fiber composite
    Type: Grant
    Filed: March 11, 2014
    Date of Patent: November 21, 2017
    Assignee: BYK-Chemie, GmbH
    Inventors: Christian Biecker, Sascha Kockoth, Frederik Piestert, Wolfgang Pritschins, Jürgen Omeis, Eva Besten, Angelika Orlowski
  • Publication number: 20170226313
    Abstract: The invention relates to a two-component or multi-component system having at least one epoxy resin component (1) that comprises i. at least one epoxy resin, ii. at least one inorganic thickener (a1) and iii. at least one wetting and dispersing agent (a2) that inhibits the thickening effect of said inorganic thickener (a1); as well as a curing component (2) which comprises i.) at least one component (b1) that at least partially cancels the inhibition of the thickening effect of the inorganic thickener (a1); said wetting and dispersing agent (a2) being non-reactive to the at least one epoxy resin, and the curing component (2) being reactive to said epoxy resin component (1). The invention also relates to substrates coated with a two-component or multi-component system according to the invention. The invention also relates to the use of a combination of (a1) and (a2) in epoxy resin compositions, in order to give the formulation a latent thickening effect.
    Type: Application
    Filed: June 23, 2015
    Publication date: August 10, 2017
    Inventors: Frederik PIESTERT, Wolfgang PRITSCHINS, Sascha KOCKOTH, Jürgen OMEIS
  • Publication number: 20170158838
    Abstract: The invention relates to a two-component or multi-component system comprising: at least one polyol component 1 that has i) at least one polyol, ii) at least one inorganic thickener (a1), and iii) at least one wetting and dispersing agent (a2) which inhibits the thickening effect of said inorganic thickener (a1); as well as at least one polyisocyanate component 2 that comprises i) at least one polyisocyanate; where (A) either the polyisocyanate component 2 comprises at least one component (b1) that at least partially cancels the inhibition of the thickening effect of the inorganic thickener (a1); and/or (B) at least one isocyanate-free component 3 comprises at least one component (b1) that at least partially cancels the inhibition of the thickening effect of the inorganic thickener (a1); said wetting and dispersing agent (a2) being non-reactive to the at least one polyol, and the polyisocyanate component 2 being reactive to the polyol component 1.
    Type: Application
    Filed: June 23, 2015
    Publication date: June 8, 2017
    Inventors: Frederik PIESTERT, Wolfgang PRITSCHINS, Sascha KOCKOTH, Jürgen OMEIS
  • Publication number: 20170152337
    Abstract: The invention relates to a two- or multi-component system having: at least one polyester component 1 which comprises: i) at least one unsaturated polyester; ii) at least one ethylenically unsaturated monomer; iii) at least one inorganic thickener (a1); and iv) at least one wetting- and dispersing agent (a2) that inhibits the thickening action of the inorganic thickener (a1); and at least one initiator component 2 which i) comprises at least one component (b1) that is able to at least partly neutralise the inhibition of the thickening action of the inorganic thickener (a1) and ii) at least one initiator that is able to trigger the polymerisation of components (i) and (ii) of the polyester component 1. The wetting- and dispersing agent (a2) is non-reactive in relation to components (i) and (ii) of the polyester component 1. The invention also relates to substrates coated with a two- or multi-component system according to the invention.
    Type: Application
    Filed: June 23, 2015
    Publication date: June 1, 2017
    Inventors: Frederik PIESTERT, Wolfgang PRITSCHINS, Sascha KOCKOTH, Jürgen OMEIS
  • Patent number: 9573103
    Abstract: The present invention relates to a method for producing an additive composition which in particular contains specific urea urethanes. The additive composition is extremely suitable as a wetting agent and dispersant.
    Type: Grant
    Filed: May 5, 2012
    Date of Patent: February 21, 2017
    Assignee: BYK-Chemie GmbH
    Inventors: Bernd Göbelt, René Nagelsdiek, Jürgen Omeis, Frederik Piestert, Wolfgang Pritschins, Natasa Meznaric, Daniela Schröder, Werner Tiegs
  • Patent number: 9518146
    Abstract: Phosphoric acid derivatives, which are present as urea urethanes and contain a radical with an affinity for the binder in addition to at least one phosphoric acid ester group. Said phosphoric acid derivatives are especially suitable as wetting agents and dispersants. The derivatives are present according to the general formula (I) Y(—O—CO—NH—R1—NH—CO—X—Z1)g??(I) wherein Y is represented by a branched or unbranched, saturated or unsaturated organic radical containing 1 to 1000 carbon atoms, q is represented by an integer from 1 to 10, R1 is represented by a saturated or unsaturated, branched or unbranched organic radical containing 6 to 20 carbon atoms, X is represented by NH and/or NZ2, Z2 is represented by a branched or unbranched, saturated or unsaturated organic radical, Z1 is represented by a branched or unbranched, saturated or unsaturated organic radical, which contains at least two carbon atoms and at least one phosphoric acid ester group.
    Type: Grant
    Filed: May 4, 2012
    Date of Patent: December 13, 2016
    Assignee: BYK-Chemie GmbH
    Inventors: Bernd Göbelt, Rene Nagelsdiek, Jürgen Omeis, Frederik Piestert, Wolfgang Pritschins, Natasa Meznaric, Daniela Schröder, Werner Tiegs
  • Patent number: 9447292
    Abstract: The invention relates to a wetting and dispersing agent that can be produced by carrying out step (1): wherein a) an organic polymer containing primary and/or secondary amino groups and b) at least one branched polyhydroxymonocarboxylic acid comprising, in addition to a carboxyl group, at least two hydroxy groups, one of which is not bound to the main chain of the molecule, are reacted by condensation reactions, forming amide linkages; and step (2): wherein at least some of the hydroxy groups of the hydroxy-functional reaction product obtained in step (1) are reacted with at least one organic monoisocyanate, forming urethane linkages.
    Type: Grant
    Filed: January 25, 2012
    Date of Patent: September 20, 2016
    Assignee: BYK-Chemie GmbH
    Inventors: Jürgen Omeis, Wolfgang Pritschins, Frederik Piestert, Marcel Krohnen, Sandra O'Shea
  • Publication number: 20160032077
    Abstract: The invention relates to a use of at least one condensation product (A) in the form of the free compound or in the form of a salt of at least one acid as a thixotropy- increasing additive, which condensation product can be obtained by reacting at least one polymerized fatty acid or at least one reaction product (U) of at least two polymerized fatty acids and at least one polyamine having at least two primary amino groups as component (a1) with at least one polyalkylene polyamine, which is capable of forming at least one imidazoline and/or tetrahydropyrimidine unit and which has at least two primary amino groups or at least one primary and at least one secondary amino group, a composition containing at least one such condensation product (A) and at least one thixotropic agent (B), and a use of said composition, which additionally comprises at least one binder (C), as an adhesive, sealant, paint, coating agent, adhesive resin, casting resin, artificial marble, floor covering, polymer concrete, or fiber composit
    Type: Application
    Filed: March 11, 2014
    Publication date: February 4, 2016
    Inventors: Christian BIECKER, Sascha KOCKOTH, Frederik PIESTERT, Wolfgang PRITSCHINS, Jürgen OMEIS, Eva BESTEN, Angelika ORLOWSKI
  • Publication number: 20150368532
    Abstract: The invention relates to rheology control kits for thickening two- or multi-component systems, comprising at least one module A containing (a1) at least one inorganic thickener and (a2) at least one wetting and dispersing agent that inhibits the thickening effect of the inorganic thickener (a1) and at least one module B containing (b1) at least one polymer that at least partially removes the inhibition of the thickening effect of the inorganic thickener (a1). The invention also relates to two- and multi-component systems into which modules can be incorporated, latent thickeners comprising module A and the use of latent thickeners in order to equip components with a latent thickening effect.
    Type: Application
    Filed: June 23, 2015
    Publication date: December 24, 2015
    Inventors: Frederik Piestert, Wolfgang Pritschins, Sascha Kockoth, Jürgen Omeis
  • Publication number: 20150038641
    Abstract: The present invention relates to phosphoric acid derivatives, which are present as urea urethanes and contain a radical with an affinity for the binder in addition to at least one phosphoric acid ester group. Said phosphoric acid derivatives are especially suitable as wetting agents and dispersants.
    Type: Application
    Filed: May 4, 2012
    Publication date: February 5, 2015
    Applicant: BYK-CHEMIE GMBH
    Inventors: Bernd Göbelt, Rene Nagelsdiek, Jürgen Omeis, Frederik Piestert, Wolfgang Pritschins, Natasa Meznaric, Daniela Schröder, Werner Tiegs