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Patent Searching and Data


Matches 501 - 550 out of 1,129

Document Document Title
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...  
JP4065696B2  
JP2008056768A
To provide a method for producing a cellulose acetate (especially cellulose triacetate) containing less impurity even on having a high degree of polymerization and a high degree of substitution at 6th position.This production process of ...  
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...  
JP2008045131A
To provide a compound usable as a support for chromatographic separation of enantiomers.This photochemically crosslinked polysaccharide derivatives are expressed by general formulae IA and IB.  
JP4047709B2  
JP4043764B2  
JP4043765B2  
JP2008007746A
To significantly reduce the number of microgels developed on the surface of melt-cast cellulose acylate film.A thermoplastic resin composition is provided, containing a thermal stabilizer, being 0.3-0.8 in exponent n when approximated th...  
JP4034472B2  
JP4035181B2  
JP4035182B2  
JP2007332191A
To provide a cellulose derivative which exhibits good compatibility with polymers for forming optically compensating films or the like, can be produced in simple production processes, and can give films having excellent optical character...  
JP2007332292A
To provide a cellulosic material film having excellent retardation development and small variation of retardation by environmental humidity, an optical compensation film, a polarizing sheet and a liquid crystal display device. The cellul...  
JP4027997B2  
JP2007327025A
To provide a modified glucan derivative (e.g. modified cellulose acylate) suitably utilizable for optical applications such as an optical film. The hydroxy acid-modified glucan derivative constituted of a glucan derivative (e.g., cellulo...  
JP4022450B2  
JP2007536237A  
JP2007308722A
To provide a cellulose ester which is useful as a plastic, a film, a fiber and a coating, and which can be directly synthesized economically. The cellulose ester having a total DS/AGU of 0.1 to 3.0 is produced by contacting the following...  
JP4010081B2  
JP2007298889A
To provide a phase difference film excellent in the durability against a temperature change, and particularly achieving both the reciprocal wavelength dispersibility and the durability. The phase difference film contains components (A), ...  
JP2007297541A
To provide a new polysaccharide derivative useful as a separating agent, etc., for optical isomers. The polysaccharide derivative is obtained by introducing a substituent containing a plurality of hetero atoms such as a bipyridyl group c...  
JP3993657B2  
JP2007527861A  
JP2007254707A
To provide an α-hydroxy acid-modified glucan derivative (e.g. a modified cellulose acylate, etc.) capable of suitably being utilized for an optical use such as an optical film, etc., and having a high practicality. This modified glucan ...  
JP3974058B2  
JP2007217470A
To provide a cellulose/mixed fatty acid ester (e.g., cellulose acetate 3 to 6C acylate) having a low impurity content in spite of having a high degree of polymerization and to provide a method for producing the same. The method for produ...  
JP2007197563A
To provide a cellulose ester (mixed fatty acid cellulose ester) having a low impurity content and a high degree of polymerization, and a method of preparing the same. The cellulose ester is prepared by activating a cellulose (e.g. linter...  
JP2007197637A
To provide a cellulose acylate film, particularly a cellulose acylate film having a large negative Rth, wherein the amount of the additives being emitted during production is small and the retardation in the in-plane and width directions...  
JP2007191513A
To provide a method for producing a cellulose acylate solid composition in which fine particles are uniformly dispersed and which is used suitably for a film formation, and a film containing the solid composition. This cellulose acylate ...  
JP2007169589A
To provide a method for producing a cellulose acylate having good thermal stability and providing a film having high film impact strength.The method for producing the cellulose acylate involves a step for drying the cellulose acylate so ...  
JP3970947B2
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...  
JP2007515515A  
JP2007138141A
To provide a method for producing a cellulose acylate having high average molecular weight and slight content of minute foreign matter.This method for producing a cellulose acylate comprises acylating cellulose with an esterifying agent ...  
JP3962105B2
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...  
JP3957792B2
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...  
JP3942668B2
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 ...  
JP3942669B2
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...  
JP2007084718A
To provide a manufacturing method of a cellulose ester, which can give in a short reaction time the cellulose ester little in fine foreign substances consisting mainly of the unreacted cellulose; to provide the cellulose ester manufactur...  
JP3932997B2
To provide a method of producing a high quality cellulose ester composition economically by solving drawbacks in the production of the cellulose composition containing a conventionally known plasticizer. In this method of producing the t...  
JP2007051266A
To obtain a highly transparent fiber-reinforced composite material comprising a cellulose fiber assembly of 4 to 200 nm average fiber diameter impregnated with a matrix material so as to realize not only improvement in hygroscopicity att...  
JP3911633B2
To notice that a powder material of cellulose such as wood or the like has excellent physical properties as a material for manufacturing a speaker cabinet and to develop a mixed material suitable for the speaker cabinet using synthetic r...  
JP2007009221A
To provide a film comprising cellulose acetate substantially low in crystallinity, excellent in moldability and having low polymerization degree.The film comprises cellulose acetate having average acetylation degree of ≥58.0%, a viscos...  
JP3895801B2
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...  
JP2006335842A
To provide a cellulose ester film improved in the reversible variation of retardation value due to moisture variation even in the form of a wide-width film, and to provide a polarizing plate excellent in yield, view angle characteristics...  
JP2006317813A
To provide a phase difference conditioner capable of conditioning the phase difference in the thickness of a coating film for optical compensation to a negative direction, further, to provide a coating film for optical compensation havin...  
JP2006523752A  
JP2006265544A
To provide a method for producing a fatty acid ester of a saccharide in a high substitution degree without causing degradation or discoloration of the saccharide without using an organic solvent generating smell of pyridine or the like w...  
JP2006249347A
To provide a method for producing a high quality cellulose ester by solving defects in conventional publicly known methods for producing the cellulose ester.This method for producing the cellulose ester is characterized by using at least...  
JP2006241433A
To provide a process for production of a cellulose acylate capable of giving a cellulose acylate film with favorable thermal stability and optical property.The cellulose acylate having a specific range of the degree of acylation is produ...  

Matches 501 - 550 out of 1,129