Alginate ropes, method of preparation and use
US5976439A · kind A · utility
3Cited by
0References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 27, 1997 |
| Grant date | Nov 2, 1999 |
| Priority date | — |
| Expiry date | Jun 27, 2017 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD01D5/18
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A process for preparing an alginate rope, which process comprises the steps of: (a) extruding an aqueous solution of a water soluble alginate into a coagulation bath; (b) contacting the extruded water soluble alginate with a source of a cation capable of forming a water insoluble alginate salt so as to produce a tow of water insoluble alginate fibers; (c) twisting the water insoluble alginate fibers of the tow; and (d) stretching the fibers up to 250% of their original length. The alginate rope prepared according to the process of the invention may be used as a surgical pack material or in the treatment of cavity wounds.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.