| PATENT ASSIGNEE'S COUNTRY | USA |
| UPDATE | 05.99 |
| PATENT ASSIGNEE | Du Pont |
| PATENT CLAIMS |
- Extruding blend at > 215C through die to make tubular sheet - Heat. sheet to orientation T - Stretching by expanding sheet to form a bubble & advan cing expanded tube at faster rate than extrusion rate, to obtain stretch > 3.5x in machine direction & > 3x in transverse direction |
| PATENT PHOTOCOPY | Available on request |
|
Want more information ? Interested in the hidden information ? Click here and do your request. |