Patent application number | Description | Published |
20080241536 | Method for processing cellulose in ionic liquids and fibers therefrom - The present application is directed to a process of dissolving cellulose in an ionic liquid, regenerating the fibers and forming a nonwoven web. In particular it is directed to fibers produced from cellulose dissolved in ionic solvents and extruded by the meltblowing process. Bonded nonwoven webs can be obtained in the process. | 10-02-2008 |
20090004473 | Lyocell fibers - Meltblown lyocell fibers incorporating polyolefinic hydrophobic polymers are disclosed. The polymer is distributed fairly uniformly within the fiber and exists as approximately one to two micron diameter domains. The fibers have a high hemicellulose level, show reduced water retention values and have varying diameters depending on processing conditions. The fibers have a brightness of at least 60. | 01-01-2009 |
20090004474 | Lyocell fibers with anti-microbial activity - Meltblown lyocell fibers are disclosed which show a high degree of antimicrobial activity against | 01-01-2009 |
20090084509 | Dissolution of Cellulose in Mixed Solvent Systems - A method for dissolving cellulose in which the cellulose based raw material is admixed with a mixture of a protic intercrystalline swelling agent and an ionic liquid at a temperature of 25° C. to 180° C. for a time sufficient to dissolve the cellulose based raw material. The molar ratio of protic intercyrstalline swelling agent to ionic liquid may be 0.05 to 1.5 moles of protic intercrystalline swelling agent to 1 mole of ionic liquid. | 04-02-2009 |
20090165969 | Enzymatic treatment of pulp for lyocell manufacture - Bleached and unbleached pulps are treated with an enzyme in one or more stages of the bleaching process to yield a low DP pulp suitable for lyocell manufacture. This allows higher throughput of fiber an economy of manufacture. | 07-02-2009 |
20090246447 | Lyocell Nonwoven Webs - Absorbent structures with nonwoven meltblown lyocell fiber webs are described which have excellent liquid distribution properties. The absorbent structures comprise at least two nonwoven meltblown lyocell fiber webs with superabsorbent polymer intermediate the two webs. Methods for making the structures are also described. The structures are particularly useful for use in disposable hygienic products. | 10-01-2009 |
20090324926 | Nonwoven lyocell fiber webs for filtration - Cellulose filtration products comprising nonwoven meltblown lyocell fiber webs in which the fibers have a diameter of from 3 to 12 microns, the largest pore diameter of less than about 300 microns and a mean flow pore diameter of less than about 150 microns are disclosed. Multilayer nonwoven lyocell fiber webs are also disclosed which have lower mean flow pore diameters and lower pore sizes. | 12-31-2009 |
20100162541 | Method for Making Lyocell Web Product - A method of making a web comprising a layer of airlaid pulp or synthetic material overlaying and fastened to at least one layer of regenerated cellulose fiber. The method can also provide a product in which the airlaid pulp or synthetic material can be sandwiched between two regenerated cellulose fiber layers. The regenerated cellulose can be viscose or lyocell. | 07-01-2010 |
20100162542 | Method for Making Lyocell Web Product - A method for making a web comprising a layer of crosslinked cellulosic fiber overlaid on and fastened to at least one layer of regenerated cellulose fiber. In one method the crosslinked cellulosic fiber is be sandwiched between two regenerated cellulose fiber layers. The regenerated cellulose can be viscose or lyocell or be made from several solvents. | 07-01-2010 |
20100167018 | Lyocell Web Product - A web comprising a layer of crosslinked cellulosic fiber overlaid on and integral with at least one layer of regenerated cellulose fiber. The crosslinked cellulosic fiber can be sandwiched between two regenerated cellulose fiber layers. The regenerated cellulose can be viscose or lyocell. | 07-01-2010 |
20100167029 | Lyocell Web Product - A web comprising a layer of airlaid pulp or synthetic material overlaying and fastened to at least one layer of regenerated cellulose fiber. The airlaid fluff or synthetic material can be sandwiched between two regenerated cellulose fiber layers. The regenerated cellulose can be viscose or lyocell. | 07-01-2010 |
20100288456 | FIBRILLATED BLEND OF LYOCELL LOW DP PULP - A fibrillated blend of lyocell and cellulosic pulp having a degree of polymerization of 200 to 1000 as measured by ASTM Test 1975-96, a method of making the blend and materials which incorporate the blend. | 11-18-2010 |
20120285640 | FIBRILLATED BLEND OF LYOCELL AND CELLULOSIC LOW DP PULP - A fibrillated blend of lyocell and cellulosic pulp having a degree of polymerization of 200 to 1000 as measured by ASTM Test 1975-96, a method of making the blend and materials which incorporate the blend. | 11-15-2012 |