Printed antistatic plastic bag
US4529087A · kind A · utility
26Cited by
7References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 21, 1983 |
| Grant date | Jul 16, 1985 |
| Priority date | — |
| Expiry date | Oct 21, 2003 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24992
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
An antistatic sheet or bag for electrostatic sensitive devices is obtained by uniformly mixing a thermoplastic polymer such as polyethylene with about 0.1 to 0.7 per cent by weight of an antistat, extruding the mixture in the form of a tubular sheet, subjecting the sheet to a corona discharge, printing on the sheet or both sides of a tube forming said sheet, with a carbon conducting ink, cutting the sheet into units of desired length and sealing the end of each such cut unit to form a bag.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.