Return to search results
Patent AT-E401436-T1: [Translated] LYOCELL PROCESS WITH SETTING OF THE PROCESSING TIME DEPENDENT ON THE DEGREE OF POLYMERIZATION
The invention relates to a method and a device for producing Lyocell fibers which are extruded from a cellulose solution of water, cellulose and tertiary amine oxide in a spinning head (25). The cellulose solution is obtained in a number of process steps directly from the cellulose (3, 4) or with the formation of a cellulose suspension. Since the degree of polymerization decreases in the course of processing the cellulose through to its extrusion in the cellulose solution, with the processing of celluloses with a low degree of polymerization there is the risk that the endless molded bodies (2) extruded in the spinning head (25) exhibit defective quality. In order to also be able to process celluloses (3, 4) with a low degree of polymerization without having to accept reduced quality, according to the invention, the residence time of the cellulose from its introduction into the device (1) through to the extrusion of the cellulose (3, 4) in the cellulose solution is set in dependence of the degree of polymerization of the cellulose, of the cellulose suspension and/or of the cellulose solution.
Complete Metadata
| @type | dcat:Dataset |
|---|---|
| accessLevel | public |
| bureauCode |
[
"009:25"
]
|
| contactPoint |
{
"fn": "NIH/NCBI Data Team",
"@type": "vcard:Contact",
"hasEmail": "mailto:info@ncbi.nlm.nih.gov"
}
|
| description | The invention relates to a method and a device for producing Lyocell fibers which are extruded from a cellulose solution of water, cellulose and tertiary amine oxide in a spinning head (25). The cellulose solution is obtained in a number of process steps directly from the cellulose (3, 4) or with the formation of a cellulose suspension. Since the degree of polymerization decreases in the course of processing the cellulose through to its extrusion in the cellulose solution, with the processing of celluloses with a low degree of polymerization there is the risk that the endless molded bodies (2) extruded in the spinning head (25) exhibit defective quality. In order to also be able to process celluloses (3, 4) with a low degree of polymerization without having to accept reduced quality, according to the invention, the residence time of the cellulose from its introduction into the device (1) through to the extrusion of the cellulose (3, 4) in the cellulose solution is set in dependence of the degree of polymerization of the cellulose, of the cellulose suspension and/or of the cellulose solution. |
| distribution |
[
{
"@type": "dcat:Distribution",
"title": "Official Data Source",
"mediaType": "text/html",
"description": "Access the complete Patent AT-E401436-T1: [Translated] LYOCELL PROCESS WITH SETTING OF THE PROCESSING TIME DEPENDENT ON THE DEGREE OF POLYMERIZATION on the official website.",
"downloadURL": "https://pubchem.ncbi.nlm.nih.gov/patent/AT-E401436-T1"
}
]
|
| identifier | https://healthdata.gov/api/views/rb72-ecws |
| issued | 2025-09-05 |
| keyword |
[
"chemistry",
"innovation",
"patent",
"pubchem",
"research"
]
|
| landingPage | https://healthdata.gov/d/rb72-ecws |
| modified | 2025-09-06 |
| programCode |
[
"009:066"
]
|
| publisher |
{
"name": "National Center for Biotechnology Information (NCBI)",
"@type": "org:Organization"
}
|
| theme |
[
"NIH"
]
|
| title | Patent AT-E401436-T1: [Translated] LYOCELL PROCESS WITH SETTING OF THE PROCESSING TIME DEPENDENT ON THE DEGREE OF POLYMERIZATION |
