Extrusion method
US9447522B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 3, 2012 |
| Grant date | Sep 20, 2016 |
| Priority date | — |
| Expiry date | Nov 20, 2032 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD10B2201/22
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method is provided for producing solid material filaments or films from a fluid of the material, by extruding the fluid by one or more extrusion openings and by solidifying the material in a precipitation bath. The formed material is guided between the extrusion openings and the precipitation bath by a lateral gas flow. The gas flow is subdivided into a hot partial flow and a cold partial flow. The material is initially brought into contact with the hot partial flow and subsequently with the cold partial flow prior to it being introduced into the precipitation bath. A device is also provided for extruding and forming materials.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.