Process for substantially eliminating surface melt fracture when extruding ethylene polymers
US4522776A · kind A · utility
10Cited by
11References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 28, 1983 |
| Grant date | Jun 11, 1985 |
| Priority date | — |
| Expiry date | Jun 28, 2003 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2023/003
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A process for substantially eliminating surface melt fracture during extrusion of an ethylene polymer wherein the die land has a surface fabricated from a material which increases adhesion between the die land surface and the polymer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.