Patents Assigned to Nederlandsch Organisatie voor Toegepast-Natuurvetenschappelijk Onderzoek Ten Behoeve van Nyserheid, Handel en Verkeer
  • Photoconductive polyimide coating upon a substrate
    Patent number: 4363860
    Abstract: A photoconductive layer is produced upon a substrate by coating the substrate with a solution in an organic solvent of a polyamic acid and of 2,4,7-trinitro-9-fluorenone (TNF) and/or 2,4,5,7-tetranitro-9-fluorenone and heating the coated substrate at a temperature not exceeding 150.degree. C. to form on the substrate a polyimide coating containing the said fluorenone compound as a photosensitizer.
    Type: Grant
    Filed: June 8, 1981
    Date of Patent: December 14, 1982
    Assignee: Nederlandsch Organisatie voor Toegepast-Natuurvetenschappelijk Onderzoek Ten Behoeve van Nyserheid, Handel en Verkeer
    Inventors: Jan van Turnhout, Ramesh C. Ahuja