Static dissipative mat
US4484250A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 5, 1982 |
| Grant date | Nov 20, 1984 |
| Priority date | — |
| Expiry date | Nov 5, 2002 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05F3/025
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
The invention contemplates a washable dust-collecting multi-layer electrically conductive web or mat for safely and quickly discharging personnel-accumulated static electricity. An upper continuous polymeric layer of relatively low conductivity, in the order of 10.sup.8 ohms per square and containing a tackifying resin thoroughly dispersed therein, is bonded to an underlying continuous polymeric layer of much greater conductivity, in the order of 10.sup.2 ohms per square, and provision is made for electrically grounding the underlying layer, illustratively by casting to the intermediate layer a continuous bottom layer of expanded polymeric material of relatively low conductivity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.