The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 08, 1977
Filed:
Dec. 19, 1974
Sally P Ginter, Midland, MI (US);
Ralph E Friedrich, Midland, MI (US);
The Dow Chemical Company, Midland, MI (US);
Abstract
An electroconductive composition useful for coating raw paper stock is provided by combining (1) an electroconductive resin, e.g., poly(vinyl/benzyl trimethyl ammonium chloride) and (2) a water-swellable, cross-linked polymer, e.g., crosslinked polyacrylamide, in the form of discrete particles having swollen diameters in the range from about 1 to about 100 micrometers. Application of this electroconductive coating composition to paper or to some other nonconductive substrate yields an article having decreased surface electrical resistivity and increased organic solvent resistance or holdout. Solvent resistance and other coating properties are further enhanced by including in the electroconductive composition a water-dispersible, film-forming amide polymer and a low viscosity binder such as a latex of styrene/butadiene copolymer.