Patents by Inventor Helena Chechik

Helena Chechik 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: 20190389230
    Abstract: An aqueous treatment composition for ITM (Intermediate transfer member) of a printing system and a method of printing comprising the step of applying said treatment composition to the surface of an ITM, wherein said treatment composition comprising: at least 3% wt quaternary ammonium salt, at least 1% wt water soluble polymer, and at least 65% wt water. Also disclosed, a printing system comprising a an ITM and treatment station for forming a thin layer of liquid treatment formulation on the ITM surface.
    Type: Application
    Filed: June 1, 2017
    Publication date: December 26, 2019
    Inventors: Benzion LANDA, Sagi ABRAMOVICH, Moshe LEVANON, Galia GOLODETZ, Helena CHECHIK, On MERO, Tatiana KURTSER, Ayal GALILI, Uriel POMERANTZ, Dan AVITAL, Jose KUPERWASSER, Omer ASHKENAZI
  • Publication number: 20190389196
    Abstract: An aqueous treatment composition for ITM (Intermediate transfer member) of a printing system and a method of printing comprising the step of applying said treatment composition to the surface of an ITM, wherein said treatment composition comprising: at least 3% wt quaternary ammonium salt, at least 1% wt water soluble polymer, and at least 65% wt water. Also disclosed, a printing system comprising a an ITM and treatment station for forming a thin layer of liquid treatment formulation on the ITM surface.
    Type: Application
    Filed: May 30, 2017
    Publication date: December 26, 2019
    Inventors: Benzion LANDA, Sagi ABRAMOVICH, Moshe LEVANON, Galia GOLODETZ, Helena CHECHIK, On MERO, Tatiana KURTSER, Ayal GALILI, Uriel POMERANTZ, Dan AVITAL, Jose KUPERWASSER, Omer ASHKENAZI
  • Publication number: 20190094727
    Abstract: There is disclosed a method of manufacturing a multi-layered article including a finished outer surface optionally having particular surface properties. The article can be a self-supported strip having a smooth outer surface. The method is, for example, suitable for the preparation of multi-layered articles such as a flexible intermediate transfer member (ITM) for use in an indirect printing system. Uses of such articles are also disclosed.
    Type: Application
    Filed: November 29, 2018
    Publication date: March 28, 2019
    Inventors: Benzion LANDA, Sagi ABRAMOVICH, Moshe LEVANON, Helena CHECHIK
  • Patent number: 8647811
    Abstract: A positive-working lithographic printing plate precursor has an outermost imageable layer that is present at a dry coverage weight of at least 0.7 g/m2 and up to and including 1.6 g/m2 and comprises a primary polymeric binder comprising recurring units of a hydroxyaryl acetal or a hydroxyaryl ester, or recurring units of both a hydroxyaryl acetal and a hydroxyaryl ester. The outermost imageable layer also contains an alkali-soluble secondary vinyl polymer that is not a primary polymeric binder and a non-polymeric polyhydric phenol. These precursors comprise an infrared radiation absorber to make them sensitive and imageable using infrared radiation. After imaging, the precursors can be processed (developed) using an relatively low pH developer such as a silicate- or metasilicate-free developer.
    Type: Grant
    Filed: January 12, 2012
    Date of Patent: February 11, 2014
    Assignee: Eastman Kodak Company
    Inventors: Helena Chechik, Larisa Postel, Tanya Kurtser, Marina Rubin, Moshe Levanon
  • Publication number: 20130183622
    Abstract: A positive-working lithographic printing plate precursor has an outermost imageable layer that is present at a dry coverage weight of at least 0.7 g/m2 and up to and including 1.6 g/m2 and comprises a primary polymeric binder comprising recurring units of a hydroxyaryl acetal or a hydroxyaryl ester, or recurring units of both a hydroxyaryl acetal and a hydroxyaryl ester. The outermost imageable layer also contains an alkali-soluble secondary vinyl polymer that is not a primary polymeric binder and a non-polymeric polyhydric phenol. These precursors comprise an infrared radiation absorber to make them sensitive and imageable using infrared radiation. After imaging, the precursors can be processed (developed) using an relatively low pH developer such as a silicate- or metasilicate-free developer.
    Type: Application
    Filed: January 12, 2012
    Publication date: July 18, 2013
    Inventors: Helena Chechik, Larisa Postel, Tanya Kurtser, Marina Rubin, Moshe Levanon