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Matches 501 - 550 out of 668

Document Document Title
JP11092501
To esterify and/or etherify polysaccharides to a high degree of substitution by reacting the polysaccharides with an activation unsaturated compound reagent capable of reacting with the polysaccharides in a densified fluid. Polysaccharid...  
JP11071402
To obtain a cellulose derivative applicable to fields where high heat flowability is required by reacting a monoepoxy compound and a dibasic acid anhydride with a carboxylate-group-containing cellulose acetate derivative obtained by reac...  
JP11071401
To obtain a biodegradable polymeric material low in manufacturing cost by dissolving a liquid cyclic lactone in a polysaccharide compound and subjecting the resulting solution to a polymerization reaction. A polysaccharide compound repre...  
JP11070159
To release acetic acid by a controlled method when a occlusive dressing for wounds having a cellulose ester base and partial solvent is exposed to a body temp. and moisture by forming the base of this bandage of a knit fabric and have th...  
JP11005851
To obtain the subject film having low and stable retardation value in the thickness direction, and capable of providing a protective coat of a polarizing plate by using cellulose acetate having a specific value of a substitution degree a...  
JP10324701
To obtain the subject new compound characterized by the structure in which the carboxy and hydroxy groups are crosslinked with each other by the lactone or intramolecular ester bond, useful for sanitary or surgical products, cosmetics, m...  
JP10316701
To obtain a cellulose acetate which is excellent in optical properties and can give a film having high releasability from the support when cast. A film is produced by a casting process from a dope containing a cellulose acetate in which ...  
JP10298201
To improve the efficiency of cleaning an org. acid contained in fibrillated cellulose ester, efficiently clean it with a small amt. of a cleaning soln., and inhibit a free acid from appearing. A cellulose ester soln. contg. an org. acid ...  
JP10212301
To obtain a biocompatible material having high durability and biocompatibility by grafting a free-radical-polymerizable monomer onto a soluble cellulose deriv. having peroxyester groups bonded in a homogeneous system. This soluble cellul...  
JP10139881
To obtain a lens material capable of preventing peeling off in the cast polymerization thereof, having heat resistance, a high refractive index and a high Abbe number, and suitable for eyeglasses, etc., by polymerizing a mixture containi...  
JP10130301
To obtain cellulose triacetate having a high stripping quality of a film from a base material in a casting method and excellent optical properties by using a low-purified pulp. This cellulose triacetate having 58-62.5% average acetified ...  
JP10045803
To obtain a mixed fatty acid ester, soluble in various kinds of organic solvents and having physical properties equal to or higher than those of cellulose triacetate by specifying a value of amorphousness index. This mixed fatty acid est...  
JP10045804
To produce a mixed fatty acid ester of cellulose, soluble in various kinds of organic solvents and having physical properties equal to or higher than those of cellulose triacetate. This method for producing a mixed fatty acid ester of ce...  
JP10045801
To enable the production of cellulose acetate solution useful for photographic materials, etc., by adopting the highest possible cooling temperature in a cooling dissolution method. A mixture of (A) a cellulose acetate having 58.25-62.5%...  
JP10045802
To enable the production of cellulose acetate solution useful for photographic materials, etc., by adopting a somewhat higher cooling temperature practicable by a relative simple treatment in a cooling dissolution method. A mixture of (A...  
JP10036401
To obtain a cellulose acetate having a low degree of polymn., a specified average degree of acetylation, a specified viscosity-average degree of polymn., a low crystallinity and an excellent moldability by adding a specified weight range...  
JP10025301
To obtain a new polysaccharide derivative that provides a highly transparent aqueous solution, develops an excellent thickening effect with little viscosity change, and excellent emulsification stability by addition of a small quantity o...  
JP09296001
To efficiently obtain a cellulose derivative which is soluble in water and excellent in water absorption properties, etc., by effecting a reaction for introducing a substituent to cellulose in a mixed solvent comprising tetraethylammoniu...  
JP09291102
To obtain acetylcellulose which can form moldings having sufficient mechanical properties by acetylating a cellulose comprising ultramicrofibers by the fibrous-state acetylation method, dissolving the obtained solid product of acetylatio...  
JP09286801
To obtain a cellulose ester which is excellent in solubility, gives a high-concn. soln. with low viscosity, and is useful for a photographic photosensitive material, a fiber, a functional film, etc., by specifying the degrees of substitu...  
JP09272701
To control a peak reaction temperature with ease and with accuracy, in a batch type reactionprocess for the acetylation of cellulose. This batch type process for producing a cellulose acetate comprises a preceding step of acetylation und...  
JP09268201
To obtain the subject compound less in un-dissolved material in an organic solvent, good in filterability and a high quality by treating a pulp with a specific enzyme preceding to an acetylating reaction. This method for producing a cell...  
JP09268424
To obtain the subject solution capable of wet spinning at a take-up speed comparable to or higher than that in the case of dry spinning process and capable of giving high-strength fibers, by dissolving a cellulose ester in a specific mix...  
JP09227601
To obtain a sulfonated cellulose deriv. with a high reaction efficiency and an excellent reaction uniformity at a low cost in an industrial scale by reacting a cellulose compd. with a specific sulfonated conjugated diene in the presence ...  
JP09221501
To provide a surface-acylated cellulose or lignocellulose which gives an excellent molding when compounded into a rubber or plastic by acylating cellulose or lignocellulose with a nonswelling solvent, an acid anhydride, etc., to a specif...  
JP09216901
To conduct a homogeneous acetylation of a cellulose without using large amounts of an acetylating agent and a reaction solvent. In the production of a cellulose acetate by acetylating a cellulose with an acetylating agent in the presence...  
JP09215914
To provide stirring blades for a kneader by which no dead space is formed and compression and compaction of solid components are suppressed. These stirring blades are stirring blades for a kneader having an and blades 4 extended out of t...  
JP09188702
To obtain a cellulose acetate inexpensively. This cellulose acetate is obtained by activating and pre-treating a cellulose stock 100 pts.wt. in cellulose content with acetic acid followed by reaction of the resultant cellulose at a tempe...  
JP09188701
To obtain a low-crystalline cellulose acetate with both average acetylation degree and viscosity-average polymerization degree at respective specific levels or higher, low in heat of generation when crystallized, excellent in moldability...  
JP09157301
To easily obtain a molded article having a superior mechanical strength and a high degree of polymerization by acetylating solid cellulose directly with acetyl chloride by means of a dissolution method in a solvent without subjecting the...  
JP09157305
To obtain a product reduced in chemically synthesized materials and friendly to the earth (environment) by using an acetylated bacterial cellulose having a specific degree of acetyl substitution for an adhesive and a coating material. A ...  
JP09157303
To obtain an acetyl cellulose with a high degree of polymerization by using an extended dipping time and keeping a reaction temp. low and the reaction time short in an acetylating reaction wherein a cellulose is first dipped in acetic ac...  
JP09157302
To obtain an acetyl cellulose (hereinafter AC) with a high degree of polymerization by acetylating solid cellulose directly with acetic anhydride by means of a dissolution method in pyridine without subjecting the cellulose to pretreatme...  
JP09157304
To obtain a molded article having a high degree of polymerization and resultantly a superior mechanical strength by using a bacterial cellulose as a cellulose material in an acetylation reaction wherein the cellulose is first dipped in a...  
JP09143191
To provide a decomposed starch composed of maltotetraose or higher maltooligosaccharide and useful for food, drink, pharmaceuticals, etc., by adding yeast cell to a sugar liquid containing decomposed starch and assimilating maltotriose a...  
JP09136901
To obtain an inexpensive safe cosmetic which can form a film excellent in removability, lubricating properties, etc. by using a specified siloxane graft cellulose derivative as the film former. This cosmetic contains a siloxane graft cel...  
JP09077801
To produce the cellulose acetate having high chemical uniformity which gives an organic solution such as acetone solution containing little insoluble parts in film casting process by controlling the half-width of acetylation degree distr...  
JP09048801
To readily obtain the subject substance not using a plasticizer, an adhesive, etc., simply being wetted with water, molded and dried, excellent in disintegration with water, rapidly being broken down into a fibrous state, effective for m...  
JP09040701
To provide a cellulose ester compound being a cellulose ester compound which can have a high degree of molecular substitution(MS) because of having carboxyl groups or because of being a polymeric substituted product, being water-insolubl...  
JP08337601
PURPOSE: To obtain a cellulose acetate having excellent moldability by removing a low-molecular-weight component therefrom by wishing with a solvent having a specified solubility parameter so that the washed product may have a specified ...  
JP08333401
PURPOSE: To produce a coating base for a solid enteric preparation by depositing a large amount of a cellulosic polymer as a coating base from the solution and recovering it at good efficiency. CONSTITUTION: This production process compr...  
JP08319301
PURPOSE: To obtain a cellulose acetate excellent in transparency, filtering characteristics, spinnability, especially heat stability irrespective of a low-grade pulp as a cellulose raw material. CONSTITUTION: Thus cellulose acetate is a ...  
JP08311101
To recover an org. acid generated from the manufacture of a cellulose ester. This process comprises the step of removing a weak acid stream 14 comprising an org. acid and water from the manufacture of a cellulose ester; the step of subje...  
JP08231761
PURPOSE: To enable the preparation of a cellulose ester solution using various organic solvents and produce a cellulose ester film having excellent physical properties by a solvent-cast method. CONSTITUTION: This cellulose ester solution...  
JP2558089
To improve the dry strength of paper by adding an organosiloxane- containing starch to a paper stock. An organosiloxane-containing starch derivative represented by the formula (St-o is a starch molecule; R is a 3-12C alcohol, an ether, a...  
JP08209589
To improve the dry strength of paper by adding an organosiloxane- containing starch to a paper stock. An organosiloxane-containing starch derivative represented by the formula (St-o is a starch molecule; R is a 3-12C alcohol, an ether, a...  
JP2525308
PURPOSE: To obtain spherical porous cellulose particles having high exclusion limit molecular weight and a large particle diameter by forming liquid droplets of a specified mixed solution containing cellulose diacetate and a chlorinated ...  
JP08134101
PURPOSE: To produce powdery particles of cellulose ester from a solution thereof in high efficiency and utilize the separated solvent effectively. CONSTITUTION: A cellulose ester solution heated at about 70-200°C is introduced into a ve...  
JP08070852
PURPOSE: To obtain a formed article consisting of cellulose acetate having biodegradability accelerated in an appropriate degree as a biodegradable mate rial by separating a microorganism having deacetylation activity against cellu lose ...  
JP08059701
PURPOSE: To obtain the subject derivative which is a polyol resin applicable to a urethane resin, etc., having the biodegradability by previously carrying out the dehydrating and drying treatments of a reactional raw material consisting ...  

Matches 501 - 550 out of 668