Patents by Inventor Stefan HIRSEMANN

Stefan HIRSEMANN 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: 20230174790
    Abstract: Disclosed herein is a dual-reactive composition including a). from 24% to 90% by weight of crosslinkable silane-functional monomer and/or oligomer and/or polymer; b). from 9% to 75% by weight of one monomer and/or unsaturated oligomer and/or unsaturated polymer; c). from 0.5% to 10% by weight of one initiator; and d). from 0.5% to 10% by weight of one catalyst, all weight percentages are based on the total weight of the coating composition and a film obtained from curing and drying of the coating composition as well as a substrate coated with the dual-reactive coating composition. Additionally disclosed herein is a process for preparing the dual-reactive coating composition and a roll-to-roll coating composition and a 1K clearcoat composition including the dual-reactive coating composition.
    Type: Application
    Filed: May 3, 2021
    Publication date: June 8, 2023
    Inventors: Christian Gerhard SCHAEFER, Hugo VALE, Stefan HIRSEMANN, Xiao Hui LI, Yang ZHANG, Maik SCHLESINGER, Cathrin CORTEN, Jan BENNEWITZ, Werner-Alfons JUNG
  • Publication number: 20220389153
    Abstract: Described herein is a blocked polyisocyanate crosslinking agent obtained from reactions of components including a). at least one polyisocyanate selected from the group consisting of aliphatic polyisocyanate, cycloaliphatic polyisocyanate and polyisocyanate-functional polymer and b). at least one beta-diketone. Also described herein is a method of preparing a blocked polyisocyanate crosslinking agent as well as coating compositions including the blocked polyisocyanate crosslinking agent.
    Type: Application
    Filed: November 9, 2020
    Publication date: December 8, 2022
    Inventors: Christian Gerhard SCHAEFER, Shengzhong ZHOU, Stefan HIRSEMANN, Wen Mei LIU
  • Publication number: 20220372326
    Abstract: Described herein is a 2K clearcoat composition including, Component I including a). at least one resin having carboxylic acid groups with acid value of 50 to 400 mg KOH/g; b). at least one resin having hydroxyl functional groups with a hydroxyl value of 10 to 800 mg KOH/g; c). at least one catalyst; and d). at least one solvent, and Component II including e). at least one epoxy-functional alkoxysilane and/or its oligomer and/or its polymer; and f). at least one crosslinker reactive to hydroxyl groups. Also described herein are a substrate coated with the dried and cured 2K clearcoat composition and an automotive including the substrate.
    Type: Application
    Filed: June 22, 2020
    Publication date: November 24, 2022
    Inventors: Yang Zhang, Ji Ming Wang, Lei He, Christian Gerhard Schaefer, Wen Mei Liu, Ranjit Salvi, Stefan Hirsemann
  • Publication number: 20220340776
    Abstract: Disclosed herein is a silane-functional hardener for carboxyl-functional resins including at least one monomer and/or oligomer and/or polymer having at least one group represented by Formula I-(a) and/or Formula I-(b) and at least one group represented by Formula II-(a) and/or Formula II-(b): where, R1, R2 and R3 independently represent a C1-C18 alkyl group, C1-C6 alkoxyl group, phenyl group, aryl group, hydrogen atom, chlorine atom or fluorine atom and at least one of R1, R2 and R3 is a C1-C6 alkoxyl group, R4 represents a C1-C18 alkyl group, C1-C6 alkanol group, C1-C6 alkoxyl group, or hydrogen atom, R5 represents a hydrogen atom, C1-C18 alkyl group, or C1-C6 alkoxyl group, R6 represents a C2-C6 acyl group, C1-C18 alkylene group or arylene group and R7 represents a —NR4— group, C2-C6 acyl group, C1-C18 alkylene group, C1-C18 alkoxy group or arylene group.
    Type: Application
    Filed: September 28, 2020
    Publication date: October 27, 2022
    Inventors: Christian Gerhard SCHAEFER, Yang ZHANG, Stefan HIRSEMANN, Ranjit SALVI, Claas Henrik HOEVELMANN, Jana Maria WREDE
  • Publication number: 20220305717
    Abstract: The present invention relates to a process of fabricating a multi-layer composite structure by 3D printing, said composite structure comprises at least one cured mortar layer formed by curing of a mortar composition, and at least one polyurethane layer formed by polymerization of a first polyurethane forming composition, wherein said mortar composition and said first polyurethane forming composition are dispensed individually and simultaneously via adjacent printing nozzles. The mortar composition is optionally modified by a second polyurethane forming composition.
    Type: Application
    Filed: June 10, 2020
    Publication date: September 29, 2022
    Inventors: Hang XU, ShengZhong ZHOU, Bang Wei XI, Xi Tao LIU, Li Xia WANG, He Meng ZHAO, Bernhard FEICHTENSCHLAGER, Stefan HIRSEMANN
  • Publication number: 20220282032
    Abstract: Described herein is a cardanol-derivatives modified polymer obtained from a reaction of epoxy groups in a cardanol-derivative compound and carboxyl groups in a carboxyl-functional polymer, where the cardanol-derivative compound is the reaction product of cardanol-derivatives modified with haloalkylene oxide having a carbon number of from 3 to 10. Also described herein is a process of preparing the cardanol-derivatives modified polymer, a method of using the cardanol-derivatives modified polymer in automotive coatings, and the obtained coating composition thereof.
    Type: Application
    Filed: August 24, 2020
    Publication date: September 8, 2022
    Inventors: Han Bin WANG, Qiang LI, Stefan HIRSEMANN
  • Publication number: 20220251410
    Abstract: Described herein is a coating composition including a) from 25 to 50% by weight of a polymeric binder selected from polyacrylates (A1) and/or polyesters (A2) with a crosslinkable amount of hydroxyl groups, as component (A), b) from 15 to 25% by weight of a crosslinking agent having functional groups that are reactive to OH groups, as component (B), and c) from 35 to 50% by weight of at least one monomeric and/or oligomeric reactive diluent with at least one olefinic double bond, as component (C), where the weight percentage is based on the total weight of the coating composition. This coating composition has not only low VOC but also high hardness after curing. Also described herein are a preparation method of the coating composition and a method of use thereof.
    Type: Application
    Filed: June 22, 2020
    Publication date: August 11, 2022
    Inventors: Ming Wang, Chun Yang Li, Yuan Yuan Song, Ling Yu Sui, Stefan Hirsemann, Cathrin Corten
  • Publication number: 20220098102
    Abstract: The invention relates to a multi-component composition for the manufacture of polyurethane/urea cementitious hybrid system, comprising at least one isocyanate component selected from the group consisting of monoisocyanate, polyisocyanate and NCO terminated prepolymer, at least one polyol, water, catalyst, at least one acidic additive, and hydraulic binder, wherein the acidic additive is at least one selected from the group consisting of Lewis acids, acid precursors and acidic buffers and is in an amount of 0.01 to 3 wt %, based on the total weight of the composition, to the preparation thereof, and to the use of the composition for the preparation of a flooring, waterproofing, screed, grouting, primer, wall paint, roofing or coating in construction applications.
    Type: Application
    Filed: January 31, 2020
    Publication date: March 31, 2022
    Inventors: Hang XU, Jie SHEN, ShengZhong ZHOU, Stefan HIRSEMANN, Andrew TASKER, Josef WEICHMANN, Lei GUO
  • Publication number: 20200385607
    Abstract: The present invention relates to a composition comprising methylene malonate monomer and polymer in construction field. Particularly, the invention relates to a two-component composition comprising at least one methylene malonate monomer (A), at least one polymer (B) and at least one acidic stabilizer (C), and component II comprising at least one alkali accelerator, to the preparation thereof, and to the use of the composition as a coating material, particularly as a flooring coat.
    Type: Application
    Filed: December 18, 2018
    Publication date: December 10, 2020
    Inventors: Lei MENG, Sheng Zhong ZHOU, Stefan HIRSEMANN, Harald ROECKEL
  • Publication number: 20200181303
    Abstract: The present invention relates to a composition to form support materials for 3D (three dimensional) printing and the application of said composition in 3D printing process as well as the resultant 3D object. The present invention also provides a process of fabricating a three-dimensional object, comprising i) dispensing a build material that comprises a model material composition and a support material composition; ii) curing the layer dispensed in step i); iii) repeating step i) and ii) so as to sequentially form a plurality of layers in a configured pattern corresponding to the shape of the object; and iv) removing the support material from the build material.
    Type: Application
    Filed: April 16, 2018
    Publication date: June 11, 2020
    Inventors: Hang XU, Sheng Zhong ZHOU, Stefan HIRSEMANN