Melt spinning extrusion head system
US7014442B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 31, 2002 |
| Grant date | Mar 21, 2006 |
| Priority date | — |
| Expiry date | Nov 12, 2023 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C48/05
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The present invention provides a series of plates for distributing a molten polymer composition, the series of plates includes at least two plates: a first plate that includes an upper surface, a lower surface, and a plurality of polymer distribution channels connecting the upper surface and the lower surface. In certain illustrated embodiments, the plurality of polymer distribution channels consist essentially of substantially horizontal channels at one or both the upper surface and lower surface and substantially linear downwardly sloping channels connecting the substantially horizontal channels at the upper surface to the substantially horizontal channels at the lower surface, the upper surface to the substantially horizontal channels at the lower surface or the substantially horizontal channels at the upper surface to lower surface; and a second plate that includes an upper surface, a lower surface, and a plurality of polymer distribution channels connecting the upper surface and the lower surface wherein the plurality of polymer distribution channels consist essentially of substantially horizontal channels at one or both the upper surface and lower surface and substantially li…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.