Conductive polyester sheet
US5726283A · kind A · utility
6Cited by
10References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 3, 1997 |
| Grant date | Mar 10, 1998 |
| Priority date | — |
| Expiry date | Jan 3, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A conductive polyester sheet having three layers, comprising one substrate layer and two surface layers, laminated together by co-extrusion is provided. All the three layers are made from polyester and/or copolyester, and the surface layers further contain carbon black and thus are useful as conductive layers. The sheet has a surface conductivity of not more than 10.sup.8 ohms and the flow index of the material for the conductive layers during the extrusion step is not lower than 60 g/min (loading, 2160 g; temperature, 275.degree. C.).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.