Patent application number | Description | Published |
20100129452 | CELLULOSE DERIVATIVE AND METHOD FOR PRODUCTION THEREOF - The invention provides a cellulose derivative having a repeating unit of the formula below, a composition including the cellulose derivative and a phospholipid, a method for production thereof, and an adhesion barrier including the cellulose derivative or the composition. | 05-27-2010 |
20100279982 | CELLULOSE DERIVATIVE - A cellulose derivative which has a suitable elastic modulus and viscosity when it is dissolved in water and is useful as an adhesion barrier. | 11-04-2010 |
20110129505 | CELLULOSE DERIVATIVE AND HYDROGEL THEREOF - The invention is a cellulose derivative wherein some of the carboxyl groups of the cellulose derivative carboxymethylcellulose are replaced with —CO—NH—X—CO—Y—Z, and a hydrogel of the same. In the formula, X is a C1-10 divalent hydrocarbon group, Y is a divalent group derived from polyalkylene oxide having oxygen atoms at both ends, and Z is a C1-24 hydrocarbon group or —CO—R | 06-02-2011 |
20110178184 | HYDROGEL - A hydrogel comprising a polysaccharide, wherein amphiphilic side chains are bonded to the carboxyl groups of a polysaccharide with carboxyl groups on side chains, an inorganic ion other than calcium ion, and water, and a method for its preparation. The gel has high viscoelasticity, can be injected into the body using an instrument such as a syringe, and is useful for various biomedical materials. | 07-21-2011 |
20110301121 | HYDROGEL OF POLYSACCHARIDE DERIVATIVE - A nerve dysfunction repairing material including a hydrogel of a polysaccharide derivative that has, in a 0.5 wt % aqueous solution, a complex modulus of 1 to 1000 N/m | 12-08-2011 |
20120035128 | POLYSACCHARIDE DERIVATIVE AND HYDROGEL THEREOF - Disclosed are a polysaccharide derivative obtained by substituting some of the carboxyl groups of a carboxy polysaccharide with —NH—X—CO—Y—Z; and a hydrogel thereof. Here, X is a C | 02-09-2012 |
20120232224 | FIBROUS FORMED ARTICLE - Disclosed is a fibrous formed article having excellent hydrophilicity, which contains a hydrophobic polymer and amphiphilic molecules and has an average fiber diameter of 0.05 to 50 μm, the amphiphilic molecules segregating to the fiber surface. | 09-13-2012 |
20130034592 | HYDROGEL - A hydrogel composed of a polyanionic polysaccharide derivative having a hydrophobic group introduced by covalent bonding and a salt solution with a salt concentration of 50 mM or more and 200 mM or less, the hydrogel having an aggregate structure with an average particle diameter of 100 to 2000 nm in the diluted solution, as well as a method for manufacturing the hydrogel comprising the steps of preparing a mixture containing a polyanionic polysaccharide derivative having a hydrophobic group introduced and a salt solution with a salt concentration of 50 mM or more and 200 mM or less and subjecting the mixture to heat treatment. The hydrogel of the present invention has a long-term stability and may be filtered using a porous filter having a pore diameter of 5 μm or more. | 02-07-2013 |
20130137803 | LOW-CHARGING FIBER AND METHOD FOR PRODUCING THE SAME - An object to be achieved by the invention is to provide a biodegradable low-charging fiber. The prevent inventors have found that when a specific amount of a specific phospholipid that is not known to have antistatic properties is added to a biodegradable polymer, and the resulting mixture is formed into a fiber having a smooth surface, low-charging properties are developed. The invention has thus been accomplished. The invention is a fiber having an average surface porosity of less than 3% and made of a biodegradable polymer that contains a specific amount of a specific phospholipid. | 05-30-2013 |