Patents by Inventor Steffen GNAUCK

Steffen GNAUCK 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).

  • Polymerisable compounds and the use thereof in liquid-crystal displays
    Patent number: 11299676
    Abstract: The present invention relates to a mixture comprising a not fully aromatic polymerisable compound and a polymerisable photoinitiator, to liquid-crystal (LC) media comprising them, and to the use of the polymerisable compounds and LC media for optical, electro-optical and electronic purposes, in particular in LC displays, especially in LC displays of the polymer sustained alignment type.
    Type: Grant
    Filed: September 26, 2018
    Date of Patent: April 12, 2022
    Assignee: Merck Patent GmbH
    Inventors: Qiong Tong, Dmitry Ushakov, Helga Haas, Steffen Gnauck, Thorsten Rachor, Sven Schuepfer, Simon Mundinger
  • Liquid crystal media comprising polymerisable compounds
    Patent number: 11254872
    Abstract: Liquid crystal (LC) media comprising polymerisable compounds as further specified in the description and claims and a self-alignment additive for vertical alignment. The media are adapted for use in LC displays, especially in LC displays of the polymer-sustained alignment type.
    Type: Grant
    Filed: September 5, 2019
    Date of Patent: February 22, 2022
    Assignee: Merck Patent GmbH
    Inventors: Helmut Haensel, Steffen Gnauck, Qiong Tong, Sabrina Zeiss
  • Benzil monoketals and the use thereof
    Patent number: 10899852
    Abstract: The present invention relates to the use of hydrophilic compounds of the formula I as photopolymerisation initiators of polymerisable substance mixtures which comprise unsaturated compounds, or for the photochemical crosslinking of linear polymers, in which the parameters have the meaning indicated in Claim 1, to sealants for liquid-crystal displays which comprise the hydrophilic photoinitiators, to novel hydrophilic photoinitiators of the formula I, and to the liquid-crystal displays produced using these sealants.
    Type: Grant
    Filed: October 5, 2016
    Date of Patent: January 26, 2021
    Assignee: Merck Patent GmbH
    Inventors: Peer Kirsch, Qiong Tong, Alexander Hahn, Leo Weegels, Steffen Gnauck, Sven Schuepfer, Peter Leonhard, Claudia Enders
  • POLYMERISABLE COMPOUNDS AND THE USE THEREOF IN LIQUID-CRYSTAL DISPLAYS
    Publication number: 20200263091
    Abstract: The present invention relates to a mixture comprising a not fully aromatic polymerisabe compound and a polymerisable photoinitiator, to liquid-crystal (LC) media comprising them, and to the use of the polymerisable compounds and LC media for optical, electro-optical and electronic purposes, in particular in LC displays, especially in LC displays of the polymer sustained alignment type.
    Type: Application
    Filed: September 26, 2018
    Publication date: August 20, 2020
    Applicant: Merck Patent GmbH
    Inventors: Qiong TONG, Dmitry USHAKOV, Helga HAAS, Steffen GNAUCK, Thorsten RACHOR, Sven SCHUEPFER, Simon MUNDINGER
  • BENZIL MONOKETALS AND THE USE THEREOF
    Publication number: 20200247916
    Abstract: The present invention relates to the use of hydrophilic compounds of the formula I as photopolymerisation initiators of polymerisable substance mixtures which comprise unsaturated compounds, or for the photochemical crosslinking of linear polymers, in which the parameters have the meaning indicated in Claim 1, to sealants for liquid-crystal displays which comprise the hydrophilic photoinitiators, to novel hydrophilic photoinitiators of the formula I, and to the liquid-crystal displays produced using these sealants.
    Type: Application
    Filed: October 5, 2016
    Publication date: August 6, 2020
    Applicant: Merck Patent GmbH
    Inventors: Peer KIRSCH, Qiong TONG, Alexander HAHN, Leo WEEGELS, Steffen GNAUCK, Sven SCHUEPFER, Peter LEONHARD, Claudia ENDERS
  • LIQUID CRYSTAL MEDIA COMPRISING POLYMERISABLE COMPOUNDS
    Publication number: 20200080000
    Abstract: Liquid crystal (LC) media comprising polymerisable compounds as further specified in the description and claims and a self-alignment additive for vertical alignment. The media are adapted for use in LC displays, especially in LC displays of the polymer-sustained alignment type.
    Type: Application
    Filed: September 5, 2019
    Publication date: March 12, 2020
    Applicant: Merck Patent GmbH
    Inventors: Helmut HAENSEL, Steffen GNAUCK, Qiong TONG, Sabrina ZEISS