Patents by Inventor Matthias Gerst

Matthias Gerst 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: 11958992
    Abstract: Plasticizer migration-resistant, UV-curable hotmelt adhesive for graphics films and labels made of plasticized PVC Described here is a UV-curable hotmelt adhesive largely resistant to plasticizer migration and comprising a UV-crosslinkable poly(meth)acrylate formed from methyl acrylate, C4-18 alkyl (meth)acrylate, monomer with acid groups, copolymerized photoinitiator and optionally further monomers. The hotmelt adhesive further comprises an aliphatic polyester polymer. The use of the hotmelt adhesive on graphics films and self-adhesive labels made of plasticized PVC is also described.
    Type: Grant
    Filed: September 28, 2018
    Date of Patent: April 16, 2024
    Assignee: BASF SE
    Inventors: Dirk Wulff, Ulrike Licht, Thomas Christ, Matthias Gerst
  • Patent number: 11884846
    Abstract: Described is an adhesive composition in the form of an aqueous polymer dispersion comprising tackifiers, a compound crosslinking via keto or aldehyde groups and a pressure-sensitive adhesive polymer which is formed by emulsion polymerization from soft (meth)acrylic ester monomers, acid monomers, monomers having keto or aldehyde groups, styrene and optionally further monomers, wherein the polymerization may be carried out in the presence of chain transfer agents. The pressure-sensitive adhesive polymer has certain gel contents. The pressure-sensitive adhesive composition may be used to produce adhesive labels, adhesive tapes or adhesive films.
    Type: Grant
    Filed: April 10, 2019
    Date of Patent: January 30, 2024
    Inventors: Matthias Gerst, Dirk Wulff
  • Publication number: 20240018398
    Abstract: A description is given of a two-part adhesive product comprising a first composition in the form of an aqueous polymer dispersion comprising at least one adhesive polymer which is formed by emulsion polymerization of soft (meth)acrylic ester monomers, monomers with an acid group, styrene, and optionally further monomers. A second composition comprises a metal salt coagulant which causes instantaneous coagulation of the first composition when contacting the first with the second composition.
    Type: Application
    Filed: November 30, 2021
    Publication date: January 18, 2024
    Inventors: Gemma SANDERS, Juergen SIROKY, Ines PIETSCH, Annika SPIES, Stephan MOEBIUS, Matthias GERST
  • Patent number: 11787984
    Abstract: A description is given of a one-component pressure-sensitive adhesive composition in the form of an aqueous polymer dispersion comprising at least one pressure-sensitive adhesive polymer which is formed by emulsion polymerization of soft (meth)acrylic ester monomers, methacrylic acid, and optionally further monomers, where the polymerization takes place in the presence of chain transfer agents or styrene. The pressure-sensitive adhesive polymer has a gel content which is based at least partly on a reversible crosslinking via metal salts. The one-component pressure-sensitive adhesive composition can be used for producing adhesive labels, adhesive tapes or adhesive foils.
    Type: Grant
    Filed: January 2, 2018
    Date of Patent: October 17, 2023
    Assignee: BASF SE
    Inventors: Matthias Gerst, Stephan Moebius, Dirk Wulff, Michael Gross
  • Patent number: 11787983
    Abstract: A description is given of a method of making film laminates using a lamination adhesive comprising (a) at least one acrylic polymer A with anhydride groups which are reactive with primary or secondary amine groups; and (b) at least one compound B with at least two amine groups selected from primary and secondary amine groups. The acrylic polymer A has a molecular weight of from 3000 to 50000 and the lamination adhesive is free of organic solvents, free of water and free of compounds with isocyanate groups.
    Type: Grant
    Filed: August 10, 2020
    Date of Patent: October 17, 2023
    Assignee: BASF SE
    Inventors: Karl-Heinz Schumacher, Matthias Gerst, Peter Preishuber-Pfluegl, Kevin Payne, Timothy Klots
  • Publication number: 20220325147
    Abstract: A description is given of a method of making film laminates using a lamination adhesive comprising (a) at least one acrylic polymer A with anhydride groups which are reactive with primary or secondary amine groups; and (b) at least one compound B with at least two amine groups selected from primary and secondary amine groups. The acrylic polymer A has a molecular weight of from 3000 to 50000 and the lamination adhesive is free of organic solvents, free of water and free of compounds with isocyanate groups.
    Type: Application
    Filed: August 10, 2020
    Publication date: October 13, 2022
    Inventors: Karl-Heinz SCHUMACHER, Matthias GERST, Peter PREISHUBER-PFLUEGL, Kevin PAYNE, Timothy KLOTS
  • Publication number: 20220282133
    Abstract: Method of improving shear stability of highly concentrated aqueous adhesive polymer compositions comprising a specific adhesive polymer which has been prepared by emulsion polymerization and which is dispersed in the aqueous adhesive composition. Said method comprises treating the aqueous adhesive polymer composition with at least one anion exchange resin.
    Type: Application
    Filed: July 28, 2020
    Publication date: September 8, 2022
    Inventors: Matthias GERST, Stephan MOEBIUS, Michael GROSS, Dirk WULFF
  • Patent number: 11174333
    Abstract: The present invention describes novel macromonomers containing polyisobutene groups and homo- or copolymers thereof.
    Type: Grant
    Filed: July 26, 2017
    Date of Patent: November 16, 2021
    Assignee: BASF SE
    Inventors: Andrea Misske, Anja Thomas, Christoph Fleckenstein, Friederike Fleischhaker, Szilard Csihony, Matthias Gerst, Stephan Moebius, Ulrike Licht, Andreas Schwarz, Eric Neuhaus
  • Publication number: 20210340408
    Abstract: A floor covering includes a floor covering element having an obverse face and a reverse face; an adhesive layer applied to the reverse face; and a release liner in adherence to the adhesive layer; where the adhesive layer includes a UV-curable hot melt adhesive composition that includes a UV-curable acrylic co-polymer.
    Type: Application
    Filed: September 5, 2019
    Publication date: November 4, 2021
    Applicant: BASF SE
    Inventors: Augusto Ramos CUCALA, Glen CUNKLE, Singa D. TOBING, Sujith CHACKO, Limei LU, Matthias GERST
  • Publication number: 20210155834
    Abstract: Described is an adhesive composition in the form of an aqueous polymer dispersion comprising tackifiers, a compound crosslinking via keto or aldehyde groups and a pressure-sensitive adhesive polymer which is formed by emulsion polymerization from soft (meth)acrylic ester monomers, acid monomers, monomers having keto or aldehyde groups, styrene and optionally further monomers, wherein the polymerization may be carried out in the presence of chain transfer agents. The pressure-sensitive adhesive polymer has certain gel contents. The pressure-sensitive adhesive composition may be used to produce adhesive labels, adhesive tapes or adhesive films.
    Type: Application
    Filed: April 10, 2019
    Publication date: May 27, 2021
    Applicant: BASF SE
    Inventors: Matthias GERST, Dirk WULFF
  • Publication number: 20200270487
    Abstract: Described herein is a protection film comprising a polyolefin carrier material, a precoating of the polyolefin carrier material with a primer selected from polyurethane dispersions and a pressure-sensitive adhesive layer of a radiation-crosslinked hotmelt adhesive. A process for producing such protection films is also described.
    Type: Application
    Filed: September 28, 2018
    Publication date: August 27, 2020
    Applicant: BASF SE
    Inventors: Dirk WULFF, Holger KERN, Matthias GERST, Christoph KIENER
  • Publication number: 20200239747
    Abstract: Plasticizer migration-resistant, UV-curable hotmelt adhesive for graphics films and labels made of plasticized PVC Described here is a UV-curable hotmelt adhesive largely resistant to plasticizer migration and comprising a UV-crosslinkable poly(meth)acrylate formed from methyl acrylate, C4-18 alkyl (meth)acrylate, monomer with acid groups, copolymerized photoinitiator and optionally further monomers. The hotmelt adhesive further comprises an aliphatic polyester polymer. The use of the hotmelt adhesive on graphics films and self-adhesive labels made of plasticized PVC is also described.
    Type: Application
    Filed: September 28, 2018
    Publication date: July 30, 2020
    Applicant: BASF SE
    Inventors: Dirk WULFF, Ulrike LICHT, Thomas CHRIST, Matthias GERST
  • Publication number: 20190390091
    Abstract: A description is given of a one-component pressure-sensitive adhesive composition in the form of an aqueous polymer dispersion comprising at least one pressure-sensitive adhesive polymer which is formed by emulsion polymerization of soft (meth)acrylic ester monomers, methacrylic acid, and optionally further monomers, where the polymerization takes place in the presence of chain transfer agents or styrene. The pressure-sensitive adhesive polymer has a gel content which is based at least partly on a reversible crosslinking via metal salts. The one-component pressure-sensitive adhesive composition can be used for producing adhesive labels, adhesive tapes or adhesive foils.
    Type: Application
    Filed: January 2, 2018
    Publication date: December 26, 2019
    Applicant: BASF SE
    Inventors: Matthias GERST, Stephan MOEBIUS, Dirk WULFF, Michael GROSS
  • Patent number: 10377914
    Abstract: The present invention relates to a method of producing emulsion polymer particles having a core-shell structure wherein at least one polyalkylene oxide containing additive is used in the core, and also to their use in paints, paper coatings, foams, crop protection agents, liquid inks and cosmetic compositions.
    Type: Grant
    Filed: August 13, 2014
    Date of Patent: August 13, 2019
    Assignee: BASF SE
    Inventors: Daniel Kehrloesser, Joost Leswin, Daniel Specker, Konrad Roschmann, Matthias Gerst, Harm Wiese
  • Patent number: 10344190
    Abstract: The present invention relates to a polymer dispersion comprising A) at least one first phase comprising a) at least one chain growth addition polymer P constructed from 1 to 99.9 wt % of at least one ester from ethylenically unsaturated monomers, as monomer A, 0 to 20 wt % of at least one ethylenically unsaturated carbonitrile, as monomer B, 0.1 to 5 wt % of at least one acid-functional ethylenically unsaturated monomer, as monomer C, 0 to 5 wt % of at least one monomer which, alone or with a crosslinking agent, has crosslinking effect and which is different from the monomers A to C, as monomer D, 0 to 20 wt % of at least one ethylenically unsaturated monomer which forms a chain growth addition homopolymer having a glass transition temperature ?50° C.
    Type: Grant
    Filed: July 13, 2015
    Date of Patent: July 9, 2019
    Assignee: BASF SE
    Inventors: Lisa Houillot, Valerie Wilms, Paola Uribe Arocha, Maximillian Ruellmann, Matthias Gerst
  • Publication number: 20190169346
    Abstract: The present invention describes novel macromonomers containing polyisobutene groups and homo- or copolymers thereof.
    Type: Application
    Filed: July 26, 2017
    Publication date: June 6, 2019
    Applicant: BASF SE
    Inventors: Andrea MISSKE, Anja THOMAS, Christoph FLECKENSTEIN, Friederike FLEISCHHAKER, Szilard CSIHONY, Matthias GERST, Stephan MOEBIUS, Ulrike LICHT, Andreas SCHWARZ, Eric NEUHAUS
  • Patent number: 10093839
    Abstract: Disclosed herein are compositions comprising a first copolymer derived from monomers comprising a (meth)acrylate monomer, an acid monomer, and optionally at least one additional monomer selected from the group consisting of styrene, ?-methyl-styrene, vinyl toluene, and mixtures thereof, wherein the first copolymer is derived in the absence of a molecular weight regulator and wherein the first copolymer has a weight average molecular weight of less than 10,000 Daltons, and methods of making the same. The compositions and methods disclosed can be used, for instance, in pressure-sensitive adhesive applications.
    Type: Grant
    Filed: April 19, 2017
    Date of Patent: October 9, 2018
    Assignee: BASF SE
    Inventors: Matthias Gerst, Michael Gross, Rafael Galvan
  • Patent number: 10000600
    Abstract: The present invention relates to a process for producing emulsion polymer particles having a core-shell structure, wherein the weight ratio of the shells is within specific limits, and also to their use in paints, paper coatings, foams and cosmetic compositions.
    Type: Grant
    Filed: August 18, 2014
    Date of Patent: June 19, 2018
    Assignee: BASF SE
    Inventors: Daniel Kehrloesser, Joost Leswin, Daniel Specker, Konrad Roschmann, Matthias Gerst, Harm Wiese
  • Publication number: 20170218235
    Abstract: Disclosed herein are compositions comprising a first copolymer derived from monomers comprising a (meth)acrylate monomer, an acid monomer, and optionally at least one additional monomer selected from the group consisting of styrene, ?-methyl-styrene, vinyl toluene, and mixtures thereof, wherein the first copolymer is derived in the absence of a molecular weight regulator and wherein the first copolymer has a weight average molecular weight of less than 10,000 Daltons, and methods of making the same. The compositions and methods disclosed can be used, for instance, in pressure-sensitive adhesive applications.
    Type: Application
    Filed: April 19, 2017
    Publication date: August 3, 2017
    Inventors: Matthias Gerst, Michael Gross, Rafael Galvan
  • Publication number: 20170204305
    Abstract: The present invention relates to a polymer dispersion comprising A) at least one first phase comprising a) at least one chain growth addition polymer P constructed from 1 to 99.9 wt % of at least one ester from ethylenically unsaturated monomers, as monomer A, 0 to 20 wt % of at least one ethylenically unsaturated carbonitrile, as monomer B, 0.1 to 5 wt % of at least one acid-functional ethylenically unsaturated monomer, as monomer C, 0 to 5 wt % of at least one monomer which, alone or with a crosslinking agent, has crosslinking effect and which is different from the monomers A to C, as monomer D, 0 to 20 wt % of at least one ethylenically unsaturated monomer which forms a chain growth addition homopolymer having a glass transition temperature 50° C.
    Type: Application
    Filed: July 13, 2015
    Publication date: July 20, 2017
    Applicant: BASF SE
    Inventors: Lisa HOUILLOT, Valerie WILMS, Paola URIBE AROCHA, Maximilian RUELLMANN, Matthias GERST