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JPWO2007086318A1 |
Provided is a method for producing a cyclic ester-modified glucan derivative capable of suppressing the formation of a cyclic ester homopolymer at a high level. In a method for producing a modified glucan derivative in which a cyclic est...
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JP2009091542A |
To provide a method for industrially efficiently producing cellulose mixed acylate excellent in various characteristics, particularly optical characteristics.In the method for producing cellulose mixed acylate, a plurality of acyl groups...
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JP2009091543A |
To provide a method for industrially efficiently producing a cellulose acetate derivative having a high substitution degree and excellent in various characteristics, particularly optical characteristics.In the method for producing a cell...
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JP2009507937A |
A process for making cellulose acetate or cellulose esters which pretreats a wood pulp prior to acetylation or esterification is disclosed. The pretreatment of the wood pulp includes the mixture of wood pulp into a caustic solution to fo...
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JP2009040868A |
To provide a cellulose ester derivative which is thermoplastic and excellent in moldability to a molding object and mechanical properties, and its simple and low-cost production method.This thermoplastic cellulose ester derivative is pro...
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JP2009029958A |
To provide an optical film of excellent heat resistance restraining discoloration at a high level, even when formed of a hydroxy acid-modified glucan derivative (for example, lactone-modified cellulose acylate).This dope contains the hyd...
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JP2009029959A |
To provide a film excellent in toughness even if the film is comprised of a glucan derivative (cellulose 2-4C acylate or the like).In the film formed of the glucan derivative (e.g. cellulose acetate or the like), a glucan derivative (a m...
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JP2009029887A |
To provide a modifying agent for cellulose film, which is difficult to thermally vaporize and excellent in doping stability, and can minimize the optical anisotropy of a cellulose film, a cellulose film with minimized optical anisotropy ...
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JP4219980B2 |
PCT No. PCT/EP96/02827 Sec. 371 Date Mar. 17, 1998 Sec. 102(e) Date Mar. 17, 1998 PCT Filed Jun. 28, 1996 PCT Pub. No. WO97/02292 PCT Pub. Date Jan. 23, 1997Process for preparing a solution of cellulose formate from cellulose plates, in ...
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JP2009019124A |
To provide a polysaccharide derivative having a low polymerization degree and a low acetylation degree.The present invention provides a low polymerization degree polysaccharide derivative represented by formula (1), wherein R1, R2, R3, R...
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JP2009019123A |
To provide a cellulose acetate excellent in the expression of optical anisotropy.This 6-position-highly acetylated cellulose acetate satisfies the following relational expression : 0.5D20.9, 0.5D30.9, D60.9, wherein D2 is an acetyl subst...
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JP2009011967A |
To provide a cracking method of pulp material which is excellent in reactivity in acetylation of cellulose acetate and is for obtaining cellulose acetate with few amounts of fibers (unreacted cellulose components).A cracking machine havi...
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JP4208517B2 |
An low concentration dope is fed through a nozzle into a concentrating apparatus, and flash evaporation of the low concentration dope is performed at an end of the nozzle. The low concentration dope is concentrated thereby to an concentr...
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JP4210067B2 |
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JP4201832B2 |
PCT No. PCT/EP96/00773 Sec. 371 Date Sep. 2, 1997 Sec. 102(e) Date Sep. 2, 1997 PCT Filed Feb. 24, 1996 PCT Pub. No. WO96/27615 PCT Pub. Date Sep. 12, 1996The present invention relates to photochemically cross-linked derivatives of gener...
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JP4192234B2 |
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JP4189372B2 |
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JP4189160B2 |
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JP4185695B2 |
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JP4185581B2 |
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JP4184580B2 |
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JP4184579B2 |
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JP2008265312A |
To prevent stain adhesion to the surface of a support.A dope 70 containing a cellulose acylate and a solvent is prepared. The cellulose acylate is produced from wood as a raw material. The molar equivalent of a compound or a bonded carbo...
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JP2008266374A |
To provide a method for manufacturing, readily and industrially efficiently, a polysaccharide acylate by causing a polysaccharide or a not-wholly substituted polysaccharide derivative to react with an acid chloride, where the method give...
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JP2008260925A |
To prevent fouling from adhering on the surface of a support while producing a film.A dope 70 is made using a cellulose acylate originated from a conifer. In the cellulose acylate, the molar equivalent of a compound contained in the cell...
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JP2008248020A |
To obtain a cellulosic film having an excellent planarity, slight changes in inplane retardation (Re) and retardation (Rth) in the thickness direction by humidity variation and an excellent productivity, a retardation film using the same...
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JP2008248030A |
To obtain a cellulosic composition, a cellulosic film, an optical compensation sheet, a polarizing plate and a liquid crystal display device, in more detail, a cellulosic film having slight humidity dependence of inplane retardation (Re)...
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JP4139362B2 |
Cellulose derivatives (I) are used to thicken the organic phase of a nail varnish composition. (I) are nitrocellulose or cellulose ester derivatives in which hydroxy groups are replaced by organic groups. Cellulose derivatives (I) are us...
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JP4136054B2 |
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JP2008179667A |
To provide a modified polysaccharide that is obtained from a natural raw material, has high affinity for water or an alkaline aqueous solution and is highly stable in an aqueous solution.The modified polysaccharide is obtained by an addi...
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JP2008179918A |
To provide a cellulose ester fiber containing a decreased amount of free carboxylic acids such as acetic acid and propionic acid, and having decreased odor and good color.The cellulose ester fiber has a specific surface area of 0.01-1.0 ...
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JP2008163193A |
To obtain an optical film having reduced retardation not only in a transverse plane but also in a thickness direction plane, and, in addition, having film strength applicable for practical use.A film containing not less than 50 wt.% of a...
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JP2008525571A |
A process for the modification of amines and alcohols, comprising (i) providing a substrate having amino groups or alcohol groups, wherein said substrate is, e.g., a polysaccharide; (ii) providing a modifying agent which is a lactone, an...
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JP4115658B2 |
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 k...
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JP4108077B2 |
A cellulose ester and film thereof useful for remarkably improving optical properties such as optical isotropy are provided. The cellulose ester is adjusted so that the degree of substitution is from 2.90 to 2.965, the total of degrees o...
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JP4101871B2 |
The present invention relates to a process for preparing cellulose esters having a total DS/AGU of 0.1 to 3.0, said process comprising contacting the following: (i) a cellulose material, (ii) a solubilizing amount of a solvent system com...
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JP2008127508A |
To contribute to global warming gas (CO2 and the like) reduction of the Kyoto protocol by forming a continuously developable recycle type market in the field of many cellulose acylate products such as cellulose triacetate film used for a...
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JP4094819B2 |
To obtain a cellulose acylate solution having excellent stability with time and a low viscosity in a practicable dope concentration range. A cellulose acylate in which the total of acyl substitution degree at the 2- and the 3-positions i...
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JP4094693B2 |
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JP2008120875A |
To provide a cellulose acylate film having a small change of phase difference caused by temperature change, excellent in the expression of retardation by stretching, having a small rate of thermal expansion and excellent in optical prope...
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JP2008106208A |
To provide a method capable of reducing discoloration of a cyclic ester-modified glucan derivative obtained by graft-polymerizing a cyclic ester to a glucan derivative.A glucan derivative having a hydroxy group (such as a cellulose C2-4 ...
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JP2008513480A |
A personal care product composition containing a long chain fatty acid cellulose ester (LCCE) having a degree of substitution greater than about 1.0 of an ester substituent or residue from fatty acids having from 6 to 18 carbon atoms whe...
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JP4078767B2 |
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JP2008081603A |
To provide a novel cellulose compound preferable for an optical film, a cellulose composition with less retardation variation by humidity and a small photoelasticity constant using the cellulose compound, and a cellulose film.The cellulo...
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JP2008075015A |
To provide a new cellulose compound producing a retardation plate having inverse wavelength dispersion property by a simple production process.The new cellulose compound is represented by the general formula (1) [wherein, n is an integer...
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JP4065696B2 |
To provide a mixed acid ester of cellulose forming a film excellent in transparency, water resistance and dimensional stability. This mixed acid ester compound of cellulose is obtained by substituting hydrogen atoms of hydroxy groups of ...
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JP2008056819A |
To provide a mixed fatty acid cellulose ester (especially, cellulose acetate acylate) containing little minute luminescent foreign matter, and a method for producing (purifying) the same.The method for purifying the mixed fatty acid cell...
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JP4047709B2 |
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JP4043764B2 |
A saccharide residue-functional organopolycarbosiloxane containing at least two monosaccharide or polysaccharide groups per molecule in which a specific site on the monosaccharide or polysaccharide is bonded to silicon through a thioethe...
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JP4043765B2 |
A saccharide residue-functional organopolysiloxane containing at least two monosaccharide or polysaccharide groups per molecule in which a specific site on the monosaccharide or polysaccharide is bonded to silicon through a thioether bon...
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