Patents by Inventor Ursula Muller

Ursula Muller 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).

  • Hetero-substituted aryl acetic acid co-initiators for IR-sensitive compositions
    Publication number: 20040091811
    Abstract: An IR-sensitive composition comprising, in addition to a polymeric binder, a free radical polymerizable system consisting of at least one member selected from unsaturated free radical polymerizable monomers, oligomers which are free radical polymerizable, and polymers containing C═C bonds in the back bone and/or in the side chain groups and an initiator system, wherein the initiator system comprises the following components: (a) at least one material capable of absorbing IR radiation, (b) at least one compound capable of producing radicals and (c) at least one hereto-substituted arylacetic acid co-initiator compound indicated by the following general structures: 1
    Type: Application
    Filed: October 30, 2002
    Publication date: May 13, 2004
    Inventors: Heidi M. Munnelly, Paul R. West, Hans-Joachim Timpe, Ursula Muller, Jianbing Huang
  • Polyvinyl acetals having azido groups and use thereof in radiation-sensitive compositions
    Patent number: 6596460
    Abstract: A copolymer useful in radiation sensitive compositions for lithographic printing plates comprises the units A, B, C and D, wherein A is present in an amount of 0.5 to 30 wt.-% and is of the formula wherein R is hydrogen, C1-C4 alkyl, —CH═COOH or B is present in an amount of 5 to 35 wt.-% and is of the formula C is present in an amount of 10 to 55 wt.
    Type: Grant
    Filed: December 29, 2000
    Date of Patent: July 22, 2003
    Assignee: Kodak Polychrome Graphics LLC
    Inventors: Hans-Joachim Timpe, Ursula Müller
  • Thermal initiator system using leuco dyes and polyhalogene compounds
    Publication number: 20030003399
    Abstract: The present invention relates to IR-sensitive compositions containing an initator system comprising:
    Type: Application
    Filed: April 11, 2001
    Publication date: January 2, 2003
    Inventors: Ursula Muller, Tobias Wittig, Hans-Joachim Timpe
  • Stabilized infrared-sensitive polymerizable systems
    Publication number: 20020197564
    Abstract: The use of certain mercapto compounds as shelf life improvers for infrared-sensitive lithographic printing plate precursors is disclosed. The compounds are five-membered heteroaromatic rings containing a nitrogen atom and at least one other heteroatom, which can be oxygen, sulfur, or another nitrogen atom, such that two ring heteroatoms are bonded to a ring carbon bearing a thiol group.
    Type: Application
    Filed: April 25, 2002
    Publication date: December 26, 2002
    Inventors: Hans-Joachim Timpe, Tobias Wittig, Ursula Muller
  • Polyvinyl acetals having azido groups and use thereof in radiation-sensitive compositions
    Publication number: 20020090566
    Abstract: A polyvinyl acetal copolymer compound comprises the units A, B, C and D, wherein A is present in an amount of 0.5 to 30 wt.
    Type: Application
    Filed: December 29, 2000
    Publication date: July 11, 2002
    Applicant: Kodak Polychrome Graphics LLC.
    Inventors: Hans-Joachim Timpe, Ursula Muller