Patent · US Expired

Electroconductive film and process for production thereof

US4617231A · kind A · utility

27Cited by
4References
14Claims
0Family size

Assignee

Inventors

Key dates

Filing dateNov 8, 1985
Grant dateOct 14, 1986
Priority date
Expiry dateNov 8, 2005

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T428/30
  • WIPO fieldSurface technology, coating
  • WIPO sectorChemistry

Abstract

An electroconductive film having moderate transparency and electroconductivity and excellent mechanical properties inclusive of a good tear strength is provided through a process wherein an electroconductive fiber is dispersed over a thermoplastic resin film, and the thus formed loosely laminated sheet is hot-pressed between a pair of rollers having temperatures above and below the softening point of the thermoplastic resin film, at least one of the rollers being surfaced with an elastic material. The electroconductive film is suitably used as a packaging material for shielding electromagnetic wave.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.