Patents by Inventor Rachel Tessy Mathew

Rachel Tessy Mathew 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).

  • Colorless, transparent and heat resistant polyurethane films and methods for manufacturing the same
    Patent number: 10676639
    Abstract: The present inventions concerns compositions for producing thermoset polyurethanes, comprising polyisocyanates and polyols selected from a list consisting of allicyclic, aromatic compounds and branched polyesters. The films obtained from these compositions exhibit a high transparency, high thermal stability and good chemical resistance, and a method to produce the same. The said polyurethane films can be widely used in electronics industry where high transparency, high thermal resistance and good chemical resistance are the main requirements. Particularly, these films can be used as the substrates for conductive coatings and barrier coatings. These functionally coated films are particularly useful in applications such as touch panels or photo-voltaic cells.
    Type: Grant
    Filed: September 24, 2015
    Date of Patent: June 9, 2020
    Assignee: Covestro Deutschland AG
    Inventors: Songlin Liu, Nie Yuntong, Lena Ouh, Rachel Tessy Mathew
  • IMPROVED MAXIMUM PROCESSING TEMPERATURE OF PLASTIC SUBSTRATES USING HARD COATS
    Publication number: 20160002423
    Abstract: The present invention relates to the improvement of the maximum processing temperature of plastic substrates, in particular polymer films.
    Type: Application
    Filed: February 5, 2014
    Publication date: January 7, 2016
    Applicant: Bayer MaterialScience AG
    Inventors: Axel SCHMIDT, Theivanayagam Chairman DEIVARAJ, Rachel Tessy MATHEW, Zheng WANG, Fransiska Cecilia KARTAWIDJAJA, Shu yin Sharon SIM
  • ELECTRICALLY CONDUCTIVE PRINTABLE COMPOSITION
    Publication number: 20140319431
    Abstract: An electrically conductive printable composition comprises silver particles, a dispersing agent, a solvent, a first surfactant, comprising a hydrocarbon based surfactant, and a second surfactant, comprising a fluoro-based surfactant.
    Type: Application
    Filed: June 13, 2012
    Publication date: October 30, 2014
    Applicant: BAYER INTELLECTUAL PROPERTY GMBH
    Inventors: Daniel Rudhardt, Frank Sicking, Stefanie Eiden, Venkataramanan Balasubramaniam, Stefan Bahnmuller, Rachel Tessy Mathew, Fransiska Cecilia Kartawidjaja