Sheet or web material having antistatic properties
US5312681A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 5, 1993 |
| Grant date | May 17, 1994 |
| Priority date | — |
| Expiry date | Jan 5, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31993
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A sheet or web material comprising a hydrophobic resin support or paper support coated with at least one hydrophobic resin layer wherein said resin support or resin layer is coated with a transparent antistatic layer containing as an essential component a polythiophene with conjugated polymer backbone in the presence of a polymeric polyanion compound, characterized in that said antistatic layer is coated with an overlying adhering barrier layer applied from an aqueous polymer dispersion wherein the dispersed polymer has hydrophilic functionality sufficient to render said overlying layer adherent to a thereon coated hydrophilic colloid-containing layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.