Patents by Inventor Valentina G. Sysjuk

Valentina G. Sysjuk 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).

  • Polymeric adhesive antihalation composition for making metal-backed photopolymeric printing forms
    Patent number: 4210569
    Abstract: An adhesive antihalation composition for making metal-backed photopolymeric printing forms, according to the invention, consists of an adhesive comprising a product of copolymerization of diphenylol-propane epoxy resin with a molecular weight from 360 to 3000 and phenol-formaldehyde novolac resin with a molecular weight from 400 to 1000 in a weight ratio of 1:1 in the product, an antihalation component - iron oxide or chromium oxide, a solvent - a mixture of ethanol and acetone, the above components being used in the composition in the following proportions (in % by weight):antihalation component:10-15adhesive:35-45solvent:55-40.This composition is simple, free from toxic substances and stable during storage. When used, it ensures high adhesion of printing elements to a metal support, as high as 300-320 kfg/cm.sup.2.
    Type: Grant
    Filed: March 19, 1979
    Date of Patent: July 1, 1980
    Inventors: Valentina G. Sysjuk, Eduard T. Lazarenko, Yaroslav A. Ovdienko, Vladislav V. Bernatsek, Vladislav F. Jurin, Anatoly F. Nikolaev