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| Number | Title | Issue Date |
| 8158777 | Cellulose esters and their production in halogenated ionic liquids Ionic liquids and cellulose ester compositions and processes for producing ionic liquids and cellulose esters. Cellulose esters can be produced by esterifying cellulose in a reaction medium comprising one or more halide ionic liquids and at least one binary componen... | 04/17/2012 |
| 8153782 | Reformation of ionic liquids Processes for recycling an ionic liquid comprising employing an initial ionic liquid as a solvent and/or reagent resulting in a modified ionic liquid and thereafter subjecting at least a portion of the modified ionic liquid to at least one anion exchange process to ... | 04/10/2012 |
| 8026357 | Cellulose acylate film and its applications A cellulose acylate film, comprising a cellulose acylate having at least one substituent (Substituent A) comprising an aromatic group having at least one C4 or longer aliphatic group, is disclosed. ... | 09/27/2011 |
| 7745615 | Cellulose ester and production method thereof Cellulose ester and film thereof useful for remarkably improving optical properties, e.g., optical isotropy. The cellulose ester has a degree of substitution from 2.90 to 2.965, a total of degrees of substitution at 2- and 3-positions ≧1.97, and a half height widt... | 06/29/2010 |
| 7649089 | Biodegradable oxidized cellulose esters and their uses as microspheres A new cellulose excipient, OCCAE, suitable for use as a binder, filler, and/or disintegrant in the development of solid dosage forms and as a bodying agent or a drug carrier in the preparation of topical formulations is described. The cellulose excipient is formed b... | 01/19/2010 |
| 7595392 | Biodegradable oxidized cellulose esters The present invention relates to the preparation of a series of oxidized cellulose esters suitable for use as a drug carrier in the development of biodegradable controlled and/or sustained release pharmaceutical, agricultural, and veterinary compositions, such as fi... | 09/29/2009 |
| 7410680 | Retardation film made by using cellulose derivatives The present invention relates to a retardation film obtained by subjecting a film formed from a cellulose derivative to an orientation treatment, wherein a hydroxyl group of cellulose is substituted by at least one kind of aliphatic acyl group having 5 to 20 carbon ... | 08/12/2008 |
| 7384739 | Compositions for enhancing DNA synthesis, DNA polymerase-related factors and utilization thereof The invention provides methods, kits, and compositions for enhancing synthesis of DNA involving a carboxylate ion-supplying substance that is effective in promoting DNA synthesis in enzymatic DNA synthesis reactions. The invention further provides a thermostable DNA... | 06/10/2008 |
| 7329705 | Salt-sensitive binder compositions with N-alkyl acrylamide and fibrous articles incorporating same A salt sensitive polymeric binder for use in fibrous webs, where the binder contains a copolymer of carboxylic acid monomer units, acrylate monomer units, and N-alkyl acrylamide units. The copolymer is neutralized at least to the point where it is water soluble. The... | 02/12/2008 |
| 7320831 | Salt-sensitive vinyl acetate binder compositions and fibrous article incorporating same A salt sensitive polymeric binder for use in fibrous webs, where the binder contains a copolymer incorporating the residue of vinyl acetate, a carboxylic acid, and a vinyl ester of a saturated aliphatic monocarboxylic acid having between 6 and 18 carbon atoms in the... | 01/22/2008 |
| 7247722 | Polysaccharide aldehydes prepared by oxidation method and used as strength additives in papermaking Polysaccharide aldehydes are prepared using selective oxidation involving the use of nitroxyl radical mediated aqueous oxidation with a limited amount of oxidant and defined reaction conditions. These polysaccharide aldehyde derivatives having maximum effective alde... | 07/24/2007 |
| 7217339 | Fibrous structures exhibiting improved wet strength properties Fibrous structures and/or sanitary tissue products comprising such fibrous structures, more particularly to fibrous structures and/or sanitary tissue products that exhibit improved wet strength properties, especially temporary wet strength properties, as compared to... | 05/15/2007 |
| 7173085 | Salt sensitive aqueous emulsions This invention relates to aqueous emulsions comprising a water-dispersible copolymer which is non-dispersible in aqueous solutions containing 0.5% or more of an inorganic salt, comprising acidic ethylenically unsaturated monomers and ethylenically unsaturated monome... | 02/06/2007 |
| 7135557 | Hypochlorite free method for preparation of stable carboxylated carbohydrate products A method of making a carboxylated carbohydrate is disclosed, cellulose being a preferred carbohydrate material. Carboxylated cellulose fibers can be produced whose fiber strength and degree of polymerization is not significantly sacrificed. The method involves the u... | 11/14/2006 |
| 7122660 | Cellulose acetate and dope containing the same Using the dope containing the following cellulose acetate (1), (2), or (3), a film is prepared by the casting process: (1) a cellulose acetate having carboxyl groups binding to at least one member selected from the group consisting... | 10/17/2006 |
| 7109325 | Hypochlorite free method for preparation of stable carboxylated carbohydrate products A method of making a carboxylated carbohydrate is disclosed, cellulose being a preferred carbohydrate material. Carboxylated cellulose fibers can be produced whose fiber strength and degree of polymerization is not significantly sacrificed. The method involves the u... | 09/19/2006 |
| 7098327 | Dual-functional ion exchange resins from agricultural by-products A process for the production of dual-functional ion exchange resins from lignocellulosic agricultural material involving anionization of the lignocellulosic agricultural material with citric acid and then cationization of the lignocellulosic agricultural material wi... | 08/29/2006 |
| 7071326 | Anionic cellulose nitrate derivatives and aqueous dispersions thereof An anionic cellulose nitrate derivative is described, which has: (i) a degree of acid group substitution (DS (acid)) in the range of 0.01 to 0.2; and (ii) a nitrogen content of 10.7 wt. % to 12.3 wt. %, based on the weight of cellulose nitrate derivative. The anioni... | 07/04/2006 |
| 7026470 | Use of carboxymethyl cellulose acetate butyrate as a precoat or size for cellulosic man-made fiber boards A method for improving holdout on a coated, cellulosic substrate, such as a man-made fiber board. The process comprises the steps of applying an aqueous carboxymethyl cellulose acetate butyrate size composition to a man-made fiber substrate, forming a sized substrat... | 04/11/2006 |
| 7015200 | Gamma-hydroxybutyrate compositions containing carbohydrate, lipid or amino acid carriers The present invention provides compositions comprising at least one GHB moiety bonded to at least one physiologically compatible carrier molecule. The compositions can enhance the uptake of the drug, deliver effective therapeutic doses in a time-delayed fashion, or ... | 03/21/2006 |
| 6987182 | Process for producing cold-gelling hydrocolloids A dry hydrocolloid powder with cold-gel capabilities is produced by: dissolving a hydrocolloid comprising polysaccharide chains in an aqueous solution; heating the dissolved hydrocolloid solution to a temperature and for a time sufficient to induce a substantial alt... | 01/17/2006 |
| 6984730 | Cellulose acylate and solution thereof A cellulose acylate which is a polymer obtained by substituting cellulose with acyl groups in 2-, 3-, 6-positions. The total degree of acyl substitution in the 2- and 3-positions is regulated to from 1.70 to 1.90. The degree of 6-position acyl substitution is regula... | 01/10/2006 |
| 6958394 | Cellulose ester film A cellulose ester film is disclosed which comprises a polyhydric alcohol ester, which is an ester of one or more kinds of monocarboxylic acids with an aliphatic polyhydric alcohol, wherein the cellulose ester film has a water vapor transmission rate of from 20 to 26... | 10/25/2005 |
| 6946519 | Organic-inorganic hybrid film, its manufacturing method, optical film, and polarizing film Disclosed are an organic-inorganic hybrid film comprising a cellulose derivative and a polycondensation product of a condensation polymerizable reactive metal compound, wherein the film contains a plasticizer in an amount of 1 to 20% by weight and its manufacturing ... | 09/20/2005 |
| 6936710 | Process for oxidizing primary alcohols Primary hydroxyl groups in a substrate having both primary and secondary hydroxyl groups can be selectively oxidized to carbaldehyde and/or carboxyl groups by contacting the substrate with a cyclic nitroxyl compound in the presence of a peroxosulfate as a co-oxidant... | 08/30/2005 |
| 6921820 | Method for forming cellulose A method for forming II-type cellulose, which comprises introducing together a slurry having water and a I-type cellulose dispersed therein and water in the state of high temperature and high pressure to a tubular reactor (28) contacting the I-type cellulose ... | 07/26/2005 |
| 6919447 | Hypochlorite free method for preparation of stable carboxylated carbohydrate products A method of making a carboxylated carbohydrate is disclosed, cellulose being a preferred carbohydrate material. Carboxylated cellulose fibers can be produced whose fiber strength and degree of polymerization is not significantly sacrificed. The method involves the u... | 07/19/2005 |
| 6897303 | Process for producing cellulose acylate film A cellulose acetate film is produced from a solution of a cellulose acylate in a mixed solvent. The mixed solvent comprises a main solvent and an alcohol. The mixed solvent essentially does not contain chlorine atom. The main solvent comprises an ester and a ketone.... | 05/24/2005 |
| 6891035 | Process for bulk autoclaving Process for bulk autoclaving of polysaccharides, wherein the process includes: a) dissolving the polysaccharides in an aqueous solution and mixing until a homogeneous solution is obtained; b) filling the resulting solution in at least one container; c) placing the f... | 05/10/2005 |
| 6852852 | Method of producing regioselectively substituted esters of oligo- and polysaccharides A method of producing a cellueose ether that is predominantly substituted in the C2 position of the anhydroglucose unit of the cellulose is described. The regioselectively substituted saccharide ester produced according to the method of the present invention is sele... | 02/08/2005 |
| 6835828 | Alkylene oxide modified hardwood cellulose Disclosed is a process for producing reactive cellulose for use in the manufacture of cellulose acetate having superior clarity by mercerizing hardwood cellulosic material and reacting it with an hydroxyalkylating agent to a degree of molar substitution ranging from... | 12/28/2004 |
| 6712896 | Cellulose ester film, optical film, polarizing plate, optical compensation film and liquid crystal display A cellulose ester film comprises (a) an ultraviolet absorbent polymer having at least one of repeating units represented by formulae (1) and (2) and repeating units having ultraviolet absorbent structures represented by formulae (3), (4) and (5), (b) an ultraviolet ... | 03/30/2004 |
| 6673245 | Use of surface-active agents in the impurity removal process from solutions containing acetic derivatives using nano-filtration with membranes, in a process to obtain cellulose acetate This invention refers to the use of surface-active agents as a treatment of effluents containing acetic derivatives by tangential filtration characterized from aqueous solutions containing between 20 and 35% in weight of acetic derivatives having been opt... | 01/06/2004 |
| 6627750 | Highly carboxylated cellulose fibers and process of making the same Disclosed is a process for producing water-insoluble cellulose fibers having high carboxyl content by reacting cellulose fiber in suspension with dicarboxylic acid anhydride or chloride in the presence of a basic catalyst. The fibers produced possess a un... | 09/30/2003 |
| 6624298 | Esterified polysaccharide products and ଲ-lactone ring opened ketene dimer products containing the compositions, and process of making the same Esterified polysaccharides and the process of making such products are disclosed. The process can be enzymatic where an enzyme is used as a catalyst for the reaction. The process can also be chemical where no enzyme is used. Novel Products are obtained th... | 09/23/2003 |
| 6600034 | Method of producing cellulose polymers A method of making cellulose polymer solution comprises dissolving a cellulose polymer raw material in a chlorine-free organic solvent system under a high temperature and a high pressure condition belonging to the nearcritical or the supercritical region ... | 07/29/2003 |
| 6559300 | Water-soluble biodegradable hydroxyalkyl cellulose-2-hydroxycarboxylic acid esters which can flocculate A water-soluble, biodegradable hydroxyalkyl cellulose-2-hydroxycarboxylic acid ester is disclosed. The hydroxyalkyl cellulose-2-hydroxycarboxylic acid ester has: (i) a molecular degree of substitution of the hydroxyalkyl group of less than 1.5 (MShyd... | 05/06/2003 |
| 6548660 | Producing method of cellulose polymer A producing method of a cellulose polymer powder is provided, which comprises dissolving a cellulose polymer by exposure to an organic solvent containing, as the main component, an ester-based solvent having from 2 to 8 carbon atoms, a ketone-based solven... | 04/15/2003 |
| 6492471 | Method for producing bead polymers A continuous process for the preparation of inorganic and organic bead polymers using a static micromixer is disclosed. The bead polymers obtainable by the process according to the invention have a very uniform particle size distribution, which can be set... | 12/10/2002 |
| 6489468 | Regioselectively substituted esters of oligo- and polysaccharides and a method of producing them A regioselectively substituted member selected from the group consisting of oligo-saccharide ester and polysaccharide ester is disclosed. The ester has a partial average degree of substitution AS at the C2 position of its anhydroglucose unit of at least 9... | 12/03/2002 |
