Patent application number | Description | Published |
20080269477 | Solvent System Based on Molten Ionic Liquids, Its Production and Use for Producing Regenerated Carbohydrates - A solution system for biopolymers in the form of carbohydrates based on a molten ionic liquid, additives optionally being contained in the solution system, is described. This solution system contains a protic solvent or a mixture of several protic solvents, and in the case where the protic solvent is solely water, this is present in the solution system in an amount of more than about 5 wt. %. Carbohydrates can be incorporated into the solution system, in particular in the form of starch, cellulose and derivatives thereof, and it can then be used for regeneration of the carbohydrates contained therein. A particularly advantageous process for the preparation of the solution system containing the carbohydrates and for the preparation of regenerated carbohydrates, in particular in the form of regenerated cellulose fibers, is moreover described. The invention accordingly also provides such spun fibers as are distinguished in that they are non-fibrillating. The invention offers in particular economic advantages over the systems of the prior art. | 10-30-2008 |
20100209708 | CROSSLINKED CELLULOSE BEADS - Crosslinked cellulose beads or lignocellulose beads (referred to as beads for short), wherein at least 50% by weight of the beads have a particle diameter greater than 800 μm (21° C., 1 bar, determined by sieve analysis). | 08-19-2010 |
20100209709 | BINDER-CONSOLIDATED CELLULOSE BEADS - A binder-consolidated cellulose bead or lignocellulose bead (referred to as consolidated bead for short), obtainable by
| 08-19-2010 |
20100297445 | PRODUCTION OF SPHERICAL PARTICLES FROM SOLUTIONS COMPRISING A WATER-MISCIBLE SOLVENT BY THE METHOD OF UNDERWATER PELLETIZATION - The present invention relates to a process for producing spherical particles of at least one material, which comprises the steps:
| 11-25-2010 |
20120253030 | PROCESS FOR MANUFACTURING LOW-FIBRILLATING CELLULOSIC FIBER - A process for manufacturing low-fibrillating cellulosic fibers by a dry-jet-wet spinning process is provided. The cellulose is treated with a specific ionic liquid based solvent to produce the said fibers with fibrillating index less than or equal to (3). | 10-04-2012 |
20120253031 | PROCESS FOR MANUFACTURING LOW-FIBRILLATING CELLULOSIC FIBER - The present invention provides a process for producing low fibrillating cellulose fibers by a dry-jet-wet spinning process wherein cellulose is treated with a solvent containing imidazolium ionic salt in a spinneret maintained at a temperature of 100-120° C. and the spun fibers drawn to the coagulation bath containing ionic salt with the draw ratio less than 5, to produce fibers with fibrillating index less than or equal to 3. | 10-04-2012 |