公开(公告)号：JP2010235758A

公开(公告)日：2010-10-21

申请号：JP2009084962

申请日：2009-03-31

Applicant: Daicel Chem Ind Ltd ,  ダイセル化学工業株式会社

Inventor： SHIMAMOTO SHU ,  SHIBATA TORU

IPC: C08B3/16 ,  G02B5/30 ,  G02F1/13363

Abstract: PROBLEM TO BE SOLVED: To provide a positive C plate comprising cellulose acylate carbamoyl of which the through-thickness retardation of a film of 100 μm is -30 to -160 nm; and to provide cellulose acylate carbamoyl which provides such a positive C plate. SOLUTION: The derivative is prepared by substituting some or all of hydroxyl groups of cellulose with an acyl group and a phenylcarbamoyl group, and the film is obtained from cellulose acyl phenylcarbamoyl, wherein the degree of substitution with the phenylcarbamoyl group (DSpc) in an optional total degree of substitution (DStotal) is adjusted so that a=0.0550, b=-0.0164, c=-0.0367 and d=-0.0050, and DStotal>DSpc are met in an expression of (a+b×DStotal-d)/(b-c) COPYRIGHT: (C)2011,JPO&INPIT

Abstract translation: 要解决的问题：提供一种包含纤维素酰化物氨基甲酰基的正C板，其中100μm的膜厚延迟为-30至-160nm; 并提供提供这种正C板的纤维素酰化物氨基甲酰基。 解决方案：通过用酰基和苯基氨基甲酰基取代纤维素的一些或全部羟基制备衍生物，该膜由纤维素酰基苯基氨基甲酰基获得，其中用苯基氨基甲酰基取代的程度（DSpc） 调整可选的总取代度（DStotal），使得a（a + b×DStotal-）的表达式满足a = 0.0550，b = -0.0164，c = -0.0367和d = -0.0050，并且DStotal> DSpc D）/（BC）

公开(公告)号：JP2006082006A

公开(公告)日：2006-03-30

申请号：JP2004269119

申请日：2004-09-16

Applicant: Daicel Chem Ind Ltd ,  ダイセル化学工業株式会社

Inventor： SHIBATA TORU ,  KARAKANE HIROKI

IPC: B01D69/02 ,  B01D71/12 ,  B01D71/56 ,  B01D71/68

Abstract: PROBLEM TO BE SOLVED: To provide a filter material enabling a high filtering rate to particulates in spite of a suitably large pore size and an extremely low ventilation or liquid feeding resistance, and a manufacturing method therefor. SOLUTION: After a polymer solution is applied to a porous support such as a nonwoven fabric to gelate gradually polymer solution layers, by removing a solvent of the polymer solution, the filter material provided with no surface skin and having a three-dimensional structure representing a web of interwinded fibrous macromolecules is obtained. In the porous filter material (or the three-dimensional structure), a BET specific surface area resulting from the polymer is 1 m 2 /g or more, a water permeation speed of the filter material at 25°C is 1×10 -3 kg/sec×N or more, and a catching rate of latex particles having a particle diameter of 5 μm is 20 wt% or more. According to the bubble point testing prescribed in JIS K3832, the lowest pressure producing continuously bubbles is 0.05-1.5 MPa. COPYRIGHT: (C)2006,JPO&NCIPI

Abstract translation: 要解决的问题：提供一种过滤材料，尽管孔径适当大，通风或液体供给电阻极低，但能够实现高过滤率的过滤材料及其制造方法。 解决方案：将聚合物溶液施加到诸如无纺布的多孔载体上以逐渐凝胶化聚合物溶液层，通过除去聚合物溶液的溶剂，提供没有表面皮肤并具有三维 获得代表相互缠绕的纤维状大分子网的结构。 在多孔过滤材料（或三维结构）中，由聚合物得到的BET比表面积为1m 2 / SP / g以上，过滤材料的透水速度为25° C为1×10 -3 kg / sec×N以上，粒径为5μm的胶乳粒子的捕捉率为20重量％以上。 根据JIS K3832规定的泡点试验，连续产生气泡的最低压力为0.05〜1.5MPa。 版权所有（C）2006，JPO＆NCIPI

公开(公告)号：JP2002338601A

公开(公告)日：2002-11-27

申请号：JP2001195843

申请日：2001-06-28

Applicant: DAICEL CHEM

Inventor： SHIBATA TORU ,  SHUDO YUICHIRO ,  ITO MASAAKI

IPC: C08B3/06 ,  C08J5/18

Abstract: PROBLEM TO BE SOLVED: To provide a cellulose acetate wherein the degrees of acetyl substitution at the 2-, 3-, and 6-positions are controlled appropriately. SOLUTION: A cellulose acetate is subjected to aging in the presence of an acetyl group donor and a catalyst, wherein the amount of water or an alcohol is limited to

公开(公告)号：JP2001059001A

公开(公告)日：2001-03-06

申请号：JP2000216182

申请日：2000-07-17

Applicant: DAICEL CHEM ,  FUJI PHOTO FILM CO LTD

Inventor： SHIBATA TORU ,  SHIMAMOTO SHU ,  TAKEMOTO HIROYUKI ,  HANIYU NAOTO

IPC: C08B3/26 ,  C08B3/06 ,  C08J3/11

Abstract: PROBLEM TO BE SOLVED: To obtain a cooled mixture of cellulose acetate which has been cooled down to the highest possible temperature at which a cooling and dissolving method is feasible. SOLUTION: In a mixture comprising cellulose acetate having an average acetolysis degree of 58.25-62.5% and an organic solvent, 10-40 wt.% cellulose acetate is included in the mixture and the cellulose acetate is swollen without being dissolved in an organic solvent at a temperature (T) defined by formula (1a) or (1b): (1a) -16×Dac+933 =58.25% and also =60.0% and also

公开(公告)号：JPH1112385A

公开(公告)日：1999-01-19

申请号：JP16851097

申请日：1997-06-25

Applicant: DAICEL CHEM

Inventor： SHIBATA TORU ,  INOUE YOJI

IPC: C08J9/28

Abstract: PROBLEM TO BE SOLVED: To produce a porous material having open cells by using a polymer soluble in a solvent. SOLUTION: This polymer porous material is produced by adding a meltable, dissolvable or vaporizable third component (e.g. ice) as a granule in a substantially solid state to a solution of a polymer (e.g. cellulose acetate) with a solvent (e.g. acetone), and insolubilizing the polymer by diffusing the third component. The third component is a non-solvent of the polymer and miscible with the solvent of the polymer, and contains a component capable of solidifying by cooling (water, aliphatic alcohols, organic carboxylic acids such as acetic acid), etc. The polymer solution is mixed with the third component at a temperature below a melting point of the third component and the resultant system is heated at a temperature higher than the melting point of the third component to obtain the objective porous material.

公开(公告)号：JPH08126485A

公开(公告)日：1996-05-21

申请号：JP29214994

申请日：1994-10-31

Applicant: DAICEL CHEM

Inventor： MATSUMURA HIROYUKI ,  SHIBATA TORU

IPC: A24D1/04 ,  A24D3/04 ,  A24D3/08 ,  A24D3/10 ,  C08L101/16

Abstract: PURPOSE: To reduce environmental pollution by using a tobacco filter having an appropriate hardness to improve the tobacco taste and the filtration performance of hazardous components with degradability under wet conditions increased. CONSTITUTION: A tobacco filter medium in the form of a sheet having a screened paper structure is made from cellulose ester staple fibers of a modified cross section, for example, an X, Y or H shape. As a staple fiber, a cellulose ester fiber of modified cross section is used in which the ratio of the diameter D1 of the circle which circumscribes the outer edges of the cross section to the diameter D2 of the circle which inscribes the outer edges of the cross section, namely D1/D2 is 2 or more whereby the filter hardness is increased. The staple fibers are, for example, a cellulose acetate fiber of 1-10mm average fiber length and 1-10 denier fineness. The staple fiber may be combined with beaten pulp and/or binder of 20-90 deg. SR freeness according to the Schopper- Riegler test at a weight ratio of 90/10-20/80 of the stable fibers to the beaten pulp.

公开(公告)号：JPH05346423A

公开(公告)日：1993-12-27

申请号：JP15658492

申请日：1992-06-16

Applicant: DAICEL CHEM

Inventor： ISHIKAWA AYUMI ,  SHIBATA TORU

IPC: G01N30/26

Abstract: PURPOSE:To enhance retaining power and resolving power by adding acid into mobile phase when different compounds are separated by liquid chromatography through the use of a separating agent containing a polysaccharide derivative as an effective constituent. CONSTITUTION:When different compounds are separated by liquid chromatography through the use of a separating agent containing a polysaccharide derivative as an effective constituent, a solution prepared by adding an acid to water, water soluble organic solvent, or the mixture thereof, is employed as a mobile phase. Phosphoric acid, perchloric acid, trifluoro acetic acid, sulfuric acid, nitric acid, or the like, having high degree of dissociation is preferably employed. Mobile phase can be prepared most easily by mixing an aqueous solution dissolving an arbitrarily prepared acid and a water soluble organic solvent at a volumetric ratio in the range of 99.9:0.1-0.1:99.9, preferably in the range of 99:1-1:99. The reason why addition of acid enhances resolving power is based on the presumption that ionization of acid compound to be separared is retarded in a mobile phase having high acidity and adsorption to polysaccharide derivative is accelerated.

公开(公告)号：JPH05180818A

公开(公告)日：1993-07-23

申请号：JP114392

申请日：1992-01-08

Applicant: DAICEL CHEM

Inventor： ISHIKAWA AYUMI ,  MASUDA TOSHIO ,  SHIBATA TORU

IPC: B01D15/08 ,  B01J20/281 ,  C07B57/00 ,  C07B63/00 ,  G01N30/26 ,  G01N30/88

Abstract: PURPOSE:To simplify the analysis-separation operation of various kind of analogous compounds, especially of optical isomers, by adding various kinds of salts into the mobile phase of a regular phase system. CONSTITUTION:When a liquid chromatography is performed using a separating agent, the effective component of which is a polysaccharide derivative, various kind of salts are added into the mobile phase of a regular phase system. The said varoius kind of salts are mixtures of acid substances and basic substances, and water is removed from the mixture in the case of the combination of a Brensteadic acid and a Brensteadic base. The acidic substances are preferably diethylamines. The mobile phase of a regular phase system, in which variuous kind of salts are added, are preferably the mixture of inactive solvents such as a hexane and polar solvents compatible with the inactive solvents, preferably alcohols. Chromatography separation of the mixture of strong basic substances, their salts, or amphoteric ion compounds, which have been difficult to be well separated so far, can be facilitated.

公开(公告)号：JPH05178780A

公开(公告)日：1993-07-20

申请号：JP34627291

申请日：1991-12-27

Applicant: DAICEL CHEM

Inventor： NISHIKAWA KAZUYOSHI ,  SHIBATA TORU

IPC: C07B57/00 ,  C07B63/02 ,  C07C45/85 ,  C07C49/417 ,  C07C49/437

Abstract: PURPOSE:To separate a large amount of an industrially useful stereoisomer of a saturated polycyclic ketone by separating a mixture of saturated polycyclic ketone isomers by host formation method. CONSTITUTION:A mixture of saturated polycyclic ketone isomers is reacted with a host compound {e.g. acetylene alcohol-based compound of formula I [(n) is 1-3; X is H or group of formula II (Ar and Ar' are aryl), etc.] or trans-1,2-disubstituted cyclic compound of formula III [R is group of formula II or formula IV (R' is methyl, or two R' and N form ring of formula V) or the cyclic structure formed is represented by the structure of formula VI or formula VII ((m) is 1-6)]} to be reacted with the saturated polycyclic ketone to form a clathrate compound, and the clathrate compound is made to separate the objective stereoisomer of polycyclic ketone.

公开(公告)号：JPH0585947A

公开(公告)日：1993-04-06

申请号：JP24568191

申请日：1991-09-25

Applicant: DAICEL CHEM

Inventor： ISHIKAWA AYUMI ,  SHIBATA TORU

IPC: C07D451/10 ,  B01J20/281 ,  C07B57/00 ,  C07B63/00 ,  C07C217/30 ,  G01N30/26 ,  G01N30/88

Abstract: PURPOSE:To separate various compounds under nearly neutral state in high efficiency by liquid chromatography using a mobile phase consisting of a liquid produced by adding various salts to a mixture of water and a water-soluble organic solvent. CONSTITUTION:Liquid chromatography is carried out by using a separation agent containing a polysaccharide derivative (cellulose trisphenyl carbamate is most effective) produced by substituting a part or total (preferably >=85%) of hydrogen atoms on the hydroxyl groups of a polysaccharide with other atomic groups. In the above process, a liquid produced by adding various salts to a mixture of water and a water-soluble organic solvent (e.g. acetonitrile, methanol or ethanol) in a ratio of 100:0 to 0:100 is used as the mobile phase. The salt is preferably the one having strong chaotropic nature, e.g. perchlorate, thiocyanate, nitrate, iodide, perfluoroalkanoate, guanidium salt, quaternary ammonium salt, etc.