Patents by Inventor Rolf Irnich
Rolf Irnich 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: 11685805Abstract: The present invention relates to an aqueous dispersion of polyurethane and a method for preparing the same, use thereof in a coating composition, and a coated product. The aqueous dispersion of polyurethane comprises a polyurethane polymer which is obtained by a reaction of a reaction mixture comprising a polyurethane prepolymer A) and an isocyanate-reactive component B), said polyurethane prepolymer A) being obtained by a reaction comprising the following components: A1) a polyisocyanate which has a functionality of not less than 2; and A2) a multifunctional polyether polyol which has a functionality of not less than 3 in an amount of 1% to 30% by weight, based on the amount of said reaction mixture as 100% by weight. The aqueous dispersion of polyurethane according to the present invention is well dispersed, and is capable of forming a coat with good waterproof, moisture permeability and washing resistance.Type: GrantFiled: December 18, 2017Date of Patent: June 27, 2023Assignee: Covestro Deutschland AGInventors: Evgeny Avtomonov, Zhirong Fan, Rolf Irnich, Sujuan Zhai
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Publication number: 20210130532Abstract: The present invention relates to an aqueous dispersion of polyurethane and a method for preparing the same, use thereof in a coating composition, and a coated product. The aqueous dispersion of polyurethane comprises a polyurethane polymer which is obtained by a reaction of a reaction mixture comprising a polyurethane prepolymer A) and an isocyanate-reactive component B), said polyurethane prepolymer A) being obtained by a reaction comprising the following components: A1) a polyisocyanate which has a functionality of not less than 2; and A2) a multifunctional polyether polyol which has a functionality of not less than 3 in an amount of 1% to 30% by weight, based on the amount of said reaction mixture as 100% by weight. The aqueous dispersion of polyurethane according to the present invention is well dispersed, and is capable of forming a coat with good waterproof, moisture permeability and washing resistance.Type: ApplicationFiled: December 18, 2017Publication date: May 6, 2021Inventors: Evgeny AVTOMONOV, Zhirong FAN, Rolf IRNICH, Sujuan ZHAI
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Patent number: 10927274Abstract: The present invention relates to an article comprising expanded thermoplastic polyurethane as a substrate and a specific polyurethane urea coating on said substrate, as well as footwear, a process for producing the article and a use of a polyurethane urea dispersion/solution. It has been found that a polyurethane urea coating comprising polycarbonate structural units strongly binds to expanded TPU substrates and maintains the intrinsic properties of the expanded TPU.Type: GrantFiled: June 27, 2018Date of Patent: February 23, 2021Assignee: Covestro Deutschland AGInventors: Rolf Irnich, Thomas Michaelis
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Publication number: 20200392370Abstract: The present invention relates to an article comprising expanded thermoplastic polyurethane as a substrate and a specific polyurethane urea coating on said substrate, as well as footwear, a process for producing the article and a use of a polyurethane urea dispersion/solution. It has been found that a polurethane urea coating comprising polycarbonate structural units strongly binds to expanded TPU substrates and maintains the intrinsic properties of the expanded TPU.Type: ApplicationFiled: June 27, 2018Publication date: December 17, 2020Inventors: Rolf IRNICH, Thomas MICHAELIS
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Patent number: 10787765Abstract: Provided is a coating composition for the elastic coating of textile materials, comprising at least one blocked, isocyanate-terminated prepolymer (component A), the isocyanate-terminated prepolymer A) being prepared from a polyol component a) IN and an isocyanate component b), and the terminal isocyanate groups being blocked with dialkyl malonate and/or 3,5-dimethylpyrazole, and the isocyanate component b) containing ?70 wt % of at least one aliphatic polyisocyanate and ?30 wt % of at least one N aromatic polyisocyanate, based on the total weight of component b), at least one polyamine (component B) and ?30 wt %, based on the total mass of the coating composition, of at least one organic solvent. Further provided are a method for coating substrates with the coating composition, and also the substrate obtainable in such a method, and, further, the use of the coating composition for producing elastic coatings or elastic films.Type: GrantFiled: December 22, 2015Date of Patent: September 29, 2020Assignee: Covestro Deutschalnd AGInventors: Rolf Irnich, Jürgen Köcher, Rafael Langer
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Publication number: 20200115489Abstract: The present invention relates to an article comprising expanded thermoplastic polyurethane as a substrate and a specific polyurethane urea coating on said substrate, as well as footwear, a process for producing the article and a use of a polyurethane urea solution. It has been found that a polyurethane urea coating comprising polycarbonate structural units strongly binds to expanded TPU substrates and maintains the intrinsic properties of the expanded TPU.Type: ApplicationFiled: June 27, 2018Publication date: April 16, 2020Inventors: Rolf IRNICH, Thomas MICHAELIS
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Publication number: 20190017221Abstract: Provided is a coating composition for the elastic coating of textile materials, comprising at least one blocked, isocyanate-terminated prepolymer (component A), the isocyanate-terminated prepolymer A) being prepared from a polyol component a) IN and an isocyanate component b), and the terminal isocyanate groups being blocked with dialkyl malonate and/or 3,5-dimethylpyrazole, and the isocyanate component b) containing ?70 wt % of at least one aliphatic polyisocyanate and ?30 wt % of at least one N aromatic polyisocyanate, based on the total weight of component b), at least one polyamine (component B) and ?30 wt %, based on the total mass of the coating composition, of at least one organic solvent. Further provided are a method for coating substrates with the coating composition, and also the substrate obtainable in such a method, and, further, the use of the coating composition for producing elastic coatings or elastic films.Type: ApplicationFiled: December 22, 2015Publication date: January 17, 2019Inventors: Rolf IRNICH, Jürgen KÖCHER, Rafael LANGER
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Patent number: 9783926Abstract: A process for the production of coated textiles comprises at least the steps of a) bringing a textile substrate into contact with an aqueous dispersion A comprising at least one salt and at least one modified cellulose, b) bringing a textile substrate into contact with an aqueous dispersion B comprising at least one polymer selected from the group consisting of polyurethane, polyacrylate and polybutadiene and c) precipitation of the polyurethane in or on the textile substrate. The salt of dispersion A is an organic onium salt of one or more elements of the fifth main group of the periodic table of the elements. The invention further relates to a coated textile obtainable by a process according to the invention and to the use of organic onium salts of one or more elements of the fifth main group of the periodic table of the elements for the production of coated textiles.Type: GrantFiled: October 16, 2012Date of Patent: October 10, 2017Assignee: Covestro Deutschland AGInventors: Rolf Irnich, Zhao Xuehui
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Patent number: 9624621Abstract: A process for the production of coated textiles comprises the steps of: providing a textile substrate having a first side and a second side opposing the first side; contacting at least a part of the first side of the textile substrate with a spreadable polyurethane mechanical foam; applying a reduced pressure to at least a part of the second side of the textile substrate opposing the first side which has been contacted with the polyurethane mechanical foam; and solidifying the polyurethane mechanical foam with which the textile substrate has been contacted. The invention further relates to a coated textile obtainable by such a process, in particular a synthetic leather.Type: GrantFiled: October 16, 2012Date of Patent: April 18, 2017Assignee: Covestro Deutschland AGInventors: Rolf Irnich, Shaojun Yang
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Publication number: 20150093565Abstract: A process for the production of coated textiles comprises the steps of: providing a textile substrate having a first side and a second side opposing the first side; contacting at least a part of the first side of the textile substrate with a spreadable polyurethane mechanical foam; applying a reduced pressure to at least a part of the second side of the textile substrate opposing the first side which has been contacted with the polyurethane mechanical foam; and solidifying the polyurethane mechanical foam with which the textile substrate has been contacted. The invention further relates to a coated textile obtainable by such a process, in particular a synthetic leather.Type: ApplicationFiled: October 16, 2012Publication date: April 2, 2015Inventors: Rolf Irnich, Shaojun Yang
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Publication number: 20140370770Abstract: The present invention relates to a process for the production of coated textiles in which a textile substrate is firstly brought into contact with an aqueous dispersion comprising at least one inorganic salt and at least one modified cellulose.Type: ApplicationFiled: November 2, 2012Publication date: December 18, 2014Applicant: Bayer Intellectual Property GmbHInventors: Rolf Irnich, Xuehui Zhao
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Publication number: 20140302734Abstract: A process for the production of coated textiles comprises at least the steps of a) bringing a textile substrate into contact with an aqueous dispersion A comprising at least one salt and at least one modified cellulose, b) bringing a textile substrate into contact with an aqueous dispersion B comprising at least one polymer selected from the group consisting of polyurethane, polyacrylate and polybutadiene and c) precipitation of the polyurethane in or on the textile substrate. The salt of dispersion A is an organic onium salt of one or more elements of the fifth main group of the periodic table of the elements. The invention further relates to a coated textile obtainable by a process according to the invention and to the use of organic onium salts of one or more elements of the fifth main group of the periodic table of the elements for the production of coated textiles.Type: ApplicationFiled: October 16, 2012Publication date: October 9, 2014Inventors: Rolf Irnich, Zhao Xuehui
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Publication number: 20130288551Abstract: The present invention relates to a process for the production of coated textiles in which a textile substrate is firstly brought into contact with an aqueous dispersion comprising at least one inorganic salt and at least one modified cellulose.Type: ApplicationFiled: May 2, 2011Publication date: October 31, 2013Applicant: Bayer Intellectual Property GmbHInventors: Rolf Irnich, Xuehui Zhao