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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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 ...
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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...
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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 ...
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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...
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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...
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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...
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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...
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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 ...
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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...
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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 ...
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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 ...
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JP08059891 |
PURPOSE: To obtain a novel solid compsn. which functions as an absorbent material by crosslinking a polysaccharide (e.g. a cellulosic material or polygalactomannan) with a specific crosslinker. CONSTITUTION: This solid absorbent compsn. ...
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JP07231935 |
PURPOSE: To improve antithrombotic performance by providing an ester bonding of 2-methacryloyloxyethylphosphoryl choline and high polymer acid with a specified molecular weight as copolymer of other monomers to a high polymer membrane co...
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JP07179501 |
PURPOSE: To obtain a material having excellent dimensional stability by containing lignocellulose with an acetylating agent of an acetic anhydride and an acetic acid vapor and then reducing the acetic acid content so as to recover and re...
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JP07179662 |
PURPOSE: To obtain a plasticized cellulose acetate having a lowered m.p. CONSTITUTION: This plasticized cellulose acetate contains specified amts. of a modified cellulose acetate (A) contg. a grafted oligomer of a cyclic ester, in partic...
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JP07165951 |
PURPOSE: To obtain a biodegradable plastic which is compostable, is excellent in environmental protection, and is useful for disposable goods such as disposable medical tools by subjecting cellulose acetate to ionizing radiation. CONSTIT...
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JP07070201 |
PURPOSE: To obtain an ester of total substitution degree of 1 or more of cellulose, where the hydroxy groups in the specific positions bonding to the glucose units constituting cellulose are esterified and the ester can be formed into fi...
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JP07070202 |
PURPOSE: To obtain an ester of high biodegradability and high position-selective substitution having the ester groups in the specific positions of the hydroxy groups bonding to the glucose units constituting the cellulose and giving usef...
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JP07009411 |
PURPOSE: To increase an acetylating reaction speed by bringing a gaseous acetylating agent into contact with a cellulose-containing material composed of wood pieces increased in surface area so as to provide a relative speed to acetylate...
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JP06329701 |
PURPOSE: To obtain the title compsn. which is biodegradable and has a high dynamic Young's modulus by adding a cellulose deriv. to a culture medium for producing a microbial cellulose and culturing a microorganism capable of producing ce...
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JP06308661 |
PURPOSE: To provide a silver halide photographic sensitive material with a surface layer free from uneven coating and defective adhesion, less liable to bleed at the time of coating or with the lapse of time and not deteriorating its lub...
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JP06298801 |
PURPOSE: To obtain a regenerated cellulose suitable for medical and food applications from a cellulose deriv. without producing fine particles by adding a salt to the reaction system to decrease the dissolving power of a solvent. CONSTIT...
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JP06279502 |
PURPOSE: To provide the derivative excellent in weather and resistance hydrolysis resistances and solvent solubility. CONSTITUTION: The production process comprises reacting a carbonate compound of the formula (wherein R is selected from...
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JP06279501 |
PURPOSE: To obtain a new cellulose derivative excellent in weather resistance hydrolysis resistance and solvent solubility. CONSTITUTION: The derivative is represented by formula I [wherein C6H7O5 is a cellulose skeleton of formula II; R...
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JP06207045 |
PURPOSE: To provide a thermoplastic cellulose derivative compsn. excellent in moldability. CONSTITUTION: The compsn. is produced by mixing, kneading, and reacting a polybasic acid or its anhydride with a monoepoxide compd. or a polyhydri...
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JP06199901 |
PURPOSE: To obtain the subject composition capable of readily controlling biodegradability and coping with the fields different in requirement to biodegradation rate by change, etc., of amount of an acid compound, which composition is ob...
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JP06157602 |
PURPOSE: To produce a high-quality cellulose diacetate from a low-grade wood pulp having a low α-cellulose content by aging cellulose diacetate obtd. by acetylating the pulp, dissolving the aged cellulose diacetate in a solvent therefor...
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JP06157601 |
PURPOSE: To obtain the subject ester having good transparency, filtrability, and spinnability from a low-grade pulp having a low α-cellulose content by adding an org. solvent to the reactional system in the process for producing the est...
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JP06136175 |
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 ...
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JP06065301 |
PURPOSE: To provide a composition and its usage for preventing or curing colonic polyp. CONSTITUTION: The compound shown by the formula is administrated to patients having colonic polyp. In the formula, Q is a deprotonated residue of a p...
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JP06049275 |
PURPOSE: To provide a cellulose acetate with excellent biodegradability having a specific total weight ratio of the residual sulfuric acid therein to the alkali (alkaline earth) metal contained therein, excellent in thermal stability and...
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JP06032801 |
PURPOSE: To produce the useful cellulose esters of high molecular weight economically in a short reaction time by adding cellulose polymer to a mixture of anhydrous trifluoro acetic acid and a specific anhydrous acyl. CONSTITUTION: Allow...
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JP06009701 |
PURPOSE: To enable a cellulose derivative to be etherified at a high concentration of reaction sites and a high efficiency of the reaction of an etherifying agent by heating a specific cellulose derivative in an organic solvent in the pr...
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JP05240848 |
PURPOSE: To analyze racemic modification, which is difficultly divisible, by using polysaccharide obtained through selectively deriving only the secondary hydroxyl group. CONSTITUTION: Only the secondary hydroxyl group in polysaccharide ...
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JP05117302 |
PURPOSE: To continuously filter a cellulose acetate soln. over a long period of time when artificial silk is produced by filtering the soln. under backflushing conditions to dilute a backflush soln. in a closed system and continuously se...
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JP05094006 |
PURPOSE: To improve the film strength, moisture resistance and light fastness of the above pellicle by consisting the pellicle of a specific carbonated cellulose deriv. CONSTITUTION: A transparent thin film substantially consisting of th...
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JP04333853 |
PURPOSE: To form stable images while preventing the generation of a too much change in electric resistance by environmental fluctuations and to substantially prevent the generation of charge drop-out by having a resin layer contg. hydrox...
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JP04328754 |
PURPOSE: To provide a member for electrification capable of stably feeding a high-grade image not causing spotted fog, image defects, etc. CONSTITUTION: A resin layer contg. hydroxypropylcellulose is formed on the electric conductive ela...
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JP04328755 |
PURPOSE: To provide a member for electrification capable of stably feeding a high-grade image not causing spotted fog, image defects, etc. CONSTITUTION: A resin layer contg. cellulose represented by a formula (C6H7 O2(OH)3-m(OCORm)n (whe...
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JP04300379 |
PURPOSE: To carry out delignification of a pulp in high efficiency and to obtain new pulp having high possibility to be utilizable as a functional material and giving a paper having excellent beatability by using a cooking liquor compose...
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JP04289285 |
PURPOSE: To produce pulp having novel physical properties at a low cost regardless of broadleaf trees or needle-leaf trees without using sulfur and chlorine by using a specific cellulose derivative as an active component. CONSTITUTION: W...
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JP04261401 |
PURPOSE: To efficiently obtain the subject compd. forming an aq. soln. high in transparency by acetylating a cellulosic raw material with acetic acid anhydride, acetic acid and an acidic catalyst and subsequently neutralizing the catalys...
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JP04221385 |
PURPOSE: To provide a separation method of a diastereomer of a hetrazepine derivative into its enantiomer with high purity. CONSTITUTION: A diastereomer of a hetrazepine derivative is subjected to liquid chromatography using cellulose tr...
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