Patents by Inventor Holger Casselmann
Holger Casselmann 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).
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Patent number: 10597484Abstract: The present invention relates to a polyisocyanurate plastic obtainable by catalytic trimenzation of a polyisocyanate composition A) which contains oligomeric polyisocyanates and is low in monomeric diisocyanates, where the isocyanurate structure content in the polyisocyanate composition A) is at least 50 mol %, based on the sum total of the oligomeric structures from the group consisting of uretdione, isocyanurate, allophanate, biuret, iminooxadiazinedione and oxadiazinetrione structure that are present in the polyisocyanate composition A). The present invention further relates to a transparent element comprising or consisting of the polyisocyanurate plastic. The invention likewise relates to a process for producing the polyisocyanurate plastics.Type: GrantFiled: April 21, 2016Date of Patent: March 24, 2020Assignee: Covestro Deutschland AGInventors: Dirk Achten, Mathias Matner, Holger Casselmann, Michael Ehlers
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Publication number: 20180086875Abstract: The present invention relates to a polyisocyanurate plastic obtainable by catalytic trimenzation of a polyisocyanate composition A) which contains oligomeric polyisocyanates and is low in monomeric diisocyanates, where the isocyanurate structure content in the polyisocyanate composition A) is at least 50 mol %, based on the sum total of the oligomeric structures from the group consisting of uretdione, isocyanurate, allophanate, biuret, iminooxadiazinedione and oxadiazinetrione structure that are present in the polyisocyanate composition A). The present invention further relates to a transparent element comprising or consisting of the polyisocyanurate plastic. The invention likewise relates to a process for producing the polyisocyanurate plastics.Type: ApplicationFiled: April 21, 2016Publication date: March 29, 2018Inventors: DIRK ACHTEN, Mathias MATNER, Holger CASSELMANN, Michael EHLERS
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Patent number: 9321893Abstract: The present invention relates to a process for the production of radiation-cured foams, characterized in that the radiation-cured foams are produced by 1) foaming of an aqueous composition A), 2) thermal drying of the foam produced from step 1), 3) curing of the foam by actinic radiation, the radiation-curable aqueous compositions A), the radiation-cured foams produced by the process according to the invention and the use of the radiation-cured foams for coating substrates.Type: GrantFiled: March 4, 2011Date of Patent: April 26, 2016Assignee: Covestro Deutschland AGInventors: Stefan Sommer, Jan Weikard, Holger Casselmann, Thomas Michaelis, Erhard Lühmann
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Publication number: 20150246998Abstract: The present invention relates to a polyurethane exclusively composed of a polyisocyanate component and of a polyol component, where the polyisocyanate component consists of one or more polyisocyanates and the average NCO functionality per molecule of the polyisocyanate component is ?3, and the polyol component consists of one or more polyols and the average OH functionality per molecule of the polyol component is ?3 and its OH content is ?25% by weight.Type: ApplicationFiled: February 18, 2015Publication date: September 3, 2015Inventors: Mathias Matner, Holger Casselmann, Wei Zhuang, Dirk Achten, Michael Ehlers
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Publication number: 20120329895Abstract: The present invention relates to a process for the production of radiation-cured foams, characterized in that the radiation-cured foams are produced by 1) foaming of an aqueous composition A), 2) thermal drying of the foam produced from step 1), 3) curing of the foam by actinic radiation, the radiation-curable aqueous compositions A), the radiation-cured foams produced by the process according to the invention and the use of the radiation-cured foams for coating substrates.Type: ApplicationFiled: March 4, 2011Publication date: December 27, 2012Applicant: Bayer Intellectual Property GmbHInventors: Stefan Sommer, Jan Weikard, Holger Casselmann, Thomas Michaelis, Erhard Lühmann
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Patent number: 8048954Abstract: The present invention relates to aqueous non-ionically hydrophilised binding-agent dispersions based on polyurethane ureas with terminal polyethylene-oxide groups, to the preparation thereof, and to the use thereof for producing coatings.Type: GrantFiled: November 12, 2008Date of Patent: November 1, 2011Assignee: Bayer MaterialScience AGInventors: Hans Georg Grablowitz, Thorsten Rische, Thomas Feller, Juergen Meixner, Karin Naujoks, Holger Casselmann
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Patent number: 7972982Abstract: The invention relates to a method for coating sheet-form textile materials, in which there is applied to a sheet-form textile material an aqueous dispersion containing anionically modified polyurethane ureas comprising (A) aromatic diisocyanate, (B) polyether polyol having a mean molecular weight greater than 1500, (C) at least one compound containing from 1 to 2 isocyanate-reactive groups and at least one ionogenic group, (D) polyamine having a mean molecular weight of at least 32, and (E) water, wherein the mean total functionality of the isocyanate-reactive compounds B to D is from 1.85 to 2.2, the molar ratio of the isocyanate groups of component A to the isocyanate-reactive groups of components B to D is greater than 1, and the polyurethane ureas have a content of from 800 to 1500 mmol of urethane groups/kg of anionically modified polyurethane urea and a content of from 800 to 1800 mmol of urethane plus urea groups/kg of anionically modified polyurethane urea.Type: GrantFiled: March 11, 2009Date of Patent: July 5, 2011Assignee: Bayer MaterialScience AGInventors: Hans Georg Grablowitz, Thorsten Rische, Thomas Feller, Hans-Peter Klee, Juergen Urban, Eva Urban, legal representative, Anne Urban, legal representative, Holger Casselmann, Alfred Zastrow, Thomas Michaelis
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Publication number: 20100009582Abstract: The present invention relates to polyurethane ureas dissolved in organic solvents, which may be used as an adhesive coat for the coating of textiles.Type: ApplicationFiled: July 9, 2009Publication date: January 14, 2010Applicant: Bayer MaterialScience AGInventors: Jüergen Köcher, Thorsten Rische, Juergen Urban, Eva Urban, Anne Urban, Holger Casselmann, Thomas Feller
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Publication number: 20090239431Abstract: The invention relates to a method for coating sheet-form textile materials, in which there is applied to a sheet-form textile material an aqueous dispersion containing anionically modified polyurethane ureas comprising (A) aromatic diisocyanate, (B) polyether polyol having a mean molecular weight greater than 1500, (C) at least one compound containing from 1 to 2 isocyanate-reactive groups and at least one ionogenic group, (D) polyamine having a mean molecular weight of at least 32, and (E) water, wherein the mean total functionality of the isocyanate-reactive compounds B to D is from 1.85 to 2.2, the molar ratio of the isocyanate groups of component A to the isocyanate-reactive groups of components B to D is greater than 1, and the polyurethane ureas have a content of from 800 to 1500 mmol of urethane groups/kg of anionically modified polyurethane urea and a content of from 800 to 1800 mmol of urethane plus urea groups/kg of anionically modified polyurethane urea.Type: ApplicationFiled: March 11, 2009Publication date: September 24, 2009Applicant: Bayer MaterialScience AGInventors: Hans Georg Grablowitz, Thorsten Rische, Thomas Feller, Hans-Peter Klee, Juergen Urban, Holger Casselmann, Alfred Zastrow, Thomas Michaelis, Eva Urban, Anne Urban
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Publication number: 20090124764Abstract: The present invention relates to aqueous non-ionically hydrophilised binding-agent dispersions based on polyurethane ureas with terminal polyethylene-oxide groups, to the preparation thereof, and to the use thereof for producing coatings.Type: ApplicationFiled: November 12, 2008Publication date: May 14, 2009Applicant: Bayer MaterialScience AGInventors: Hans Georg Grablowitz, Thorsten Rische, Thomas Feller, Juergen Meixner, Karin Naujoks, Holger Casselmann
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Patent number: 7425516Abstract: This invention relates to solutions of polyurethaneureas in ?-butyrolactone or mixtures of ?-butyrolactone with toxicologically acceptable organic solvents. A process for coating substrates using these polyurethaneurea solutions, and substrates coated by said process are also provided. The substrates coated according to the invention are preferably textile products or leather, but materials such as wood or concrete can also be coated according to the invention.Type: GrantFiled: February 17, 2006Date of Patent: September 16, 2008Assignee: Bayer MaterialScience AGInventors: Jürgen Köcher, Gerald Kurek, Holger Casselmann, Jürgen Urban, Thomas Feller
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Publication number: 20070259984Abstract: The invention relates to novel microporous coatings based on polyurethane polyurea, and to a process for the production of microporous coatings, in which a composition comprising an aqueous, anionically hydrophilised polyurethane dispersion (I) and a cationic coagulant (II) containing a cationically hydrophilised polyurethane polyurea dispersion is foamed and dried.Type: ApplicationFiled: April 27, 2007Publication date: November 8, 2007Inventors: Sebastian Dorr, Thorsten Rische, Thomas Feller, Michael Heckes, Holger Casselmann, Thomas Michaelis
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Publication number: 20070249746Abstract: The invention relates to novel microporous coatings and to a process for the production of microporous coatings. A composition comprising an aqueous, anionically hydrophilised polyurethane dispersion (I) and a cationic coagulant (II) is foamed and dried to provide the microporous coating.Type: ApplicationFiled: April 3, 2007Publication date: October 25, 2007Inventors: Thorsten Rische, Holger Casselmann, Thomas Feller, Michael Heckes, Sebastian Dorr, Daniel Rudhardt, Thomas Michaelis
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Publication number: 20070167565Abstract: The invention relates to new, hydrolysis-stable, aqueous polyurethane-polyurea dispersions based on polyether-polycarbonate-polyols, to a process for preparing them and to their use in coating materials.Type: ApplicationFiled: January 10, 2007Publication date: July 19, 2007Inventors: Thorsten Rische, Thomas Feller, Holger Casselmann, Gerald Kurek, Steffen Hofacker
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Publication number: 20070049684Abstract: The present invention relates to aqueous polyurethane-polyurea dispersions wherein the dispersions contain polyurethane-polyureas that are the reaction products of I) polyisocyanates having an isocyanate group functionality of ?2, II) a polymeric polyol component containing a) 50% to 100% by weight, based on the weight of polyol component II), of polyester polyols having a number average molecular weight Mn of 200 to 8000 g/mol and synthesized from a hydroxyl component and an acid component wherein 50% to 100% by weight, based on the total weight of the hydroxyl component used to prepare polyester polyols II.a), are diols corresponding to formula 1), wherein n is 1 and/or 2, and b) 0% to 50% by weight, based on the weight of polyol component II), of polymeric polyols other than polyester polyols a), and III) optionally other isocyanate-reactive compounds.Type: ApplicationFiled: July 28, 2006Publication date: March 1, 2007Inventors: Thorsten Rische, Holger Casselmann, Thomas Feller, Harald Blum, Gerald Kurek
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Publication number: 20060189234Abstract: This invention relates to solutions of polyurethaneureas in ?-butyrolactone or mixtures of ?-butyrolactone with toxicologically acceptable organic solvents. A process for coating substrates using these polyurethaneurea solutions, and substrates coated by said process are also provided. The substrates coated according to the invention are preferably textile products or leather, but materials such as wood or concrete can also be coated according to the invention.Type: ApplicationFiled: February 17, 2006Publication date: August 24, 2006Inventors: Jurgen Kocher, Gerald Kurek, Holger Casselmann, Jurgen Urban, Thomas Feller
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Publication number: 20060128885Abstract: The present invention relates to aqueous polyurethane-polyurea dispersions having two discrete maxima in the particle size distribution, wherein the maximum of the fine fraction is between 51 and 150 nm and the maximum of the coarse fraction is between 160 and 700 nm. The present invention also relates to a process for preparing the polyurethane-polyurea dispersions, to coating compositions containing these polyurethane-polyurea dispersions, and to coated substrates prepared from these coating compositions.Type: ApplicationFiled: December 8, 2005Publication date: June 15, 2006Inventors: Thorsten Rische, Gerald Kurek, Holger Casselmann, Thomas Feller, Thomas Munzmay, Detlef-Ingo Schutze, Harald Blum, Hans-Georg Muller
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Patent number: 6172126Abstract: The present invention relates to coating composition, which is suitable for preparing light fast coatings and contains a cosolvent-free, aqueous, anionic dispersion of polyurethane-ureas, the solids content of which contains the reaction product, present at least partially in salt form, of a) an NCO prepolymer prepared from i) an aliphatic and/or cycloaliphatic diisocyanate, ii) a macrodiol having a number average molecular weight of 500 to 10,000 iii) a 2,2-bis-(hydroxymethyl)alkane monocarboxylic acid and iv) a diol having a molecular weight of 62 to 400, with b) optionally a diamine, c) a monofunctional chain terminating agent, d) water and e) a neutralizing agent, provided that the NCO content of the prepolymer is up to 25% lower than the theoretical value, the entire polyurethane-urea synthesis reaction is performed in the homogeneous phase and no cosolvent having a boiling range of greater than 100° C. is used during the preparation of the dispersion of polyurethane-ureas.Type: GrantFiled: June 24, 1999Date of Patent: January 9, 2001Assignee: Bayer AktiengesellschaftInventors: Hanns-Peter M{umlaut over (u)}ller, Horst Gruttmann, Holger Casselmann, Heino M{umlaut over (u)}ller, Joachim Petzoldt, Manfred Bock
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Patent number: 5965195Abstract: The present invention relates to coating composition, which is suitable for preparing light fast coatings and contains a cosolvent-free, aqueous, anionic dispersion of polyurethane-ureas, the solids content of which contains the reaction product, present at least partially in salt form, ofa) an NCO prepolymer prepared fromi) an aliphatic and/or cycloaliphatic diisocyanate,ii) a macrodiol having a number average molecular weight of 500 to 10,000iii) a 2,2-bis-(hydroxymethyl)alkane monocarboxylic acid andiv) a diol having a molecular weight of 62 to 400, withb) optionally a diamine,c) a monofunctional chain terminating agent,d) water ande) a neutralizing agent,provided that the NCO content of the prepolymer is up to 25% lower than the theoretical value, the entire polyurethane-urea synthesis reaction is performed in the homogeneous phase and no cosolvent having a boiling range of greater than 100.degree. C. is used during the preparation of the dispersion of polyurethane-ureas.Type: GrantFiled: December 11, 1997Date of Patent: October 12, 1999Assignee: Bayer AktiengesellschaftInventors: Hanns-Peter Muller, Horst Gruttmann, Holger Casselmann, Heino Muller, Joachim Petzoldt, Manfred Bock
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Patent number: 5902897Abstract: The present invention relates to polyamines which are prepared by reactinga) unsaturated oligoesters having an average of 2 to 4 double bonds per molecule andb) optionally other unsaturated compounds suitable as Michael addition acceptors and having an average of 1 to 4 double bonds per molecule withc) (cyclo)aliphatic diamines having two primary amino groups andd) optionally other amino-functional compounds suitable as Michael addition donors.The present invention also relates to the use of these polyamines as a binder component in lacquers and coating compositions, particularly as reactants for blocked polyisocyanates in one-component stoving lacquers.Type: GrantFiled: July 19, 1996Date of Patent: May 11, 1999Assignee: Bayer AktiengesellschaftInventors: Christian Wamprecht, Theodor Engbert, Holger Casselmann, Josef Pedain, Jurgen Meixner