Static-dissipating adhesive tape
US5491013A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 31, 1994 |
| Grant date | Feb 13, 1996 |
| Priority date | — |
| Expiry date | Aug 31, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31938
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
An electrostatic dissipating packaging tape is disclosed that comprises a transparent substrate, a substantially transparent adhesive layer on one surface of the substrate, and a clay coating on the opposite surface of the substrate from the adhesive. The clay is characterized by being able to provide a surface resistivity of 10.sup.14 ohms per square or less when present on a surface in amounts that are low enough to remain transparent, and the clay is present on the substrate surface in an amount sufficient to provide the coating with a surface resistivity of 10.sup.14 ohms per square or less, but less than an amount that would substantially reduce the transparent optical properties of the packaging tape.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.