Cellulose derivative spinning solutions having improved processability and process
US5047197A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 19, 1985 |
| Grant date | Sep 10, 1991 |
| Priority date | — |
| Expiry date | Nov 19, 2005 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD01F2/08
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Cellulose derivative spinning solutions are provided, having an improved flow rate at comparable cellulose derivative content and pressure drop across the spinning nozzle, or a higher cellulose derivative content at comparable flow rate, comprising a cellulose derivative in solution in a solvent therefor, and a polyethylene glycol soluble in the solution and having an average molecular weight within the range from about 1.1 to about 4.5 million, in an amount to improve flow rate or increase cellulose derivative content; as well as a process for spinning such solutions through a spinning nozzle at improved flow rate or increased cellulose derivative content.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.