公开(公告)号：JPH0995557A

公开(公告)日：1997-04-08

申请号：JP34461695

申请日：1995-12-05

Applicant: FUJI PHOTO FILM CO LTD ,  DAICEL CHEM

Inventor： SHIMODA KAZUHIRO ,  MURAYAMA MASAHIKO ,  YAMAZAKI HIDEKAZU ,  SHIBATA TOHRU ,  SHIMAMOTO SHU ,  TAKEMOTO HIROYUKI ,  HABU NAOTO

IPC: C08J5/18 ,  B29C41/24 ,  C08L1/00 ,  C08L1/12

Abstract: PROBLEM TO BE SOLVED: To obtain a stable cellulose acetate soln. in an org. solvent other than a halohydrocarbon. SOLUTION: This soln. comprises cellulose acetate having an average degree of acetylation of 58.0-62.5% and an org. solvent which does not substantially contain a halohydrocarbon and comprises acetone and a solvent selected from among a 3-12C ether, a 4-12C ketone, a 3-12C ester. and a 1-6C alcohol.

公开(公告)号：JPH0995544A

公开(公告)日：1997-04-08

申请号：JP34461595

申请日：1995-12-05

Applicant: FUJI PHOTO FILM CO LTD ,  DAICEL CHEM

Inventor： SHIMODA KAZUHIRO ,  MURAYAMA MASAHIKO ,  YAMAZAKI HIDEKAZU ,  SHIBATA TOHRU ,  SHIMAMOTO SHU ,  TAKEMOTO HIROYUKI ,  HABU NAOTO

IPC: C08J5/18 ,  B29C41/12 ,  B29C41/26 ,  B29C41/28 ,  B29K1/00 ,  B29L7/00

Abstract: PROBLEM TO BE SOLVED: To produce an excellent cellulose acetate film without using methylene chloride. SOLUTION: This film is produced by a process comprising the steps of cooling a mixture of a cellulose acetate having an average degree of acetylation of 58.0-62.5% and an organic solvent comprising substantially acetone with the content of the cellulose acetate of 10-40wt.% to -100 to -10 deg.C, heating the cooled mixture to 0-50 deg.C to form a solution of the cellulose acetate in the solvent, casting the cellulose acetate solution on a supporting base material, and evaporating the solvent to form a film.

公开(公告)号：DE69637298D1

公开(公告)日：2007-11-29

申请号：DE69637298

申请日：1996-01-19

Applicant: DAICEL CHEM ,  FUJIFILM CORP

Inventor： SHIMODA KAZUHIRO ,  MURAYAMA MASAHIKO ,  YAMAZAKI HIDEKAZU ,  SHIBATA TOHRU ,  SHIMAMOTO ,  TAKEMOTO HIROYUKI ,  HABU NAOTO

IPC: C08L1/12 ,  C08J3/09 ,  C08J5/18

Abstract: The present invention is directed to a cellulose acetate solution which comprises cellulose acetate having an average acetic acid content in the range of 58.0 to 62.5% in a cyclic ketone having 4 to 12 carbon atoms. The present invention is further directed to a process for the preparation of a cellulose acetate solution and to a process for the preparation of a cellulose acetate film.

公开(公告)号：DE69521869T2

公开(公告)日：2002-04-04

申请号：DE69521869

申请日：1995-10-12

Applicant: DAICEL CHEM

Inventor： MATSUMURA HIROYUKI ,  SHIMAMOTO SYU ,  SHIBATA TOHRU

IPC: A24D3/02 ,  A24D3/04 ,  A24D3/10 ,  C08L101/16 ,  D01D5/06 ,  D01D5/40 ,  D01F2/28

Abstract: A tobacco smoke filter material comprises a fibrillated cellulose ester fiber with an average fiber diameter of 15 to 250 mu m and a BET specific surface area of 0.5 to 4.5 m /g. The fibrous cellulose ester content of the material may for example be not less than 20 weight %. The cellulose ester fiber is provided by, for example, extruding a cellulose ester solution from a nozzle (2) into a precipitating agent for the particular cellulose ester and subjecting the extrudate to a shear force. This filter material can be used in the form of, for example, a filament, web or sheet to provide a tobacco smoke filter which assures good smoking qualities and excellent wet disintegratability.

公开(公告)号：GR3015505T3

公开(公告)日：1995-06-30

申请号：GR950400636

申请日：1995-03-20

Applicant: DAICEL CHEM ,  TANABE SEIYAKU CO

Inventor： NAGAMATSU SHINJI ,  TANAKA YOSHIKAZU ,  SHIBATA TOHRU

IPC: C12N15/09 ,  A61M1/16 ,  A61M1/34 ,  B01D15/00 ,  B01D39/14 ,  B01D39/16 ,  B01D61/00 ,  B01D67/00 ,  B01D69/00 ,  B01D69/02 ,  B01J20/26 ,  C02F1/28 ,  C02F1/44 ,  C12N15/00 ,  C12Q1/68 ,  G01N33/544 ,  B01D61/14 ,  B01J20/32 ,  A61L2/02

Abstract: A phosphopolyol compound such as pyrogens is separated from its solution to use in the pharmaceutical field by bringing the solution into contact with a porous adsorbent which has a pore size of 1 nm to 20 microns and comprises a base material and a functional chain group of an aliphatic amine type having a chain length of 2 to 50, bonded to the base material.

公开(公告)号：ES2058701T3

公开(公告)日：1994-11-01

申请号：ES90114521

申请日：1990-07-27

Applicant: DAICEL CHEM ,  TANABE SEIYAKU CO

Inventor： NAGAMATSU SHINJI ,  TANAKA YOSHIKAZU ,  SHIBATA TOHRU

IPC: A61M1/16 ,  A61M1/34 ,  B01D39/16 ,  B01D61/00 ,  B01D67/00 ,  B01D69/02 ,  C12Q1/68 ,  G01N33/544 ,  B01D61/14 ,  B01J20/32 ,  A61L2/02

Abstract: A separating membrane having a porous membrane structure with a pore size distribution that the membrane does not permeate 90 percent or more of particles having a size of 0.5 micron when the membrane is 0.1 mm thick, being composed of a material having a nitrogen-containing compound, is liquid-permeable to adsorb and retain phosphopolyols contained in a liquid.

公开(公告)号：DE69010124D1

公开(公告)日：1994-07-28

申请号：DE69010124

申请日：1990-07-27

Applicant: TANABE SEIYAKU CO ,  DAICEL CHEM

Inventor： NAGAMATSU SHINJI ,  TANAKA YOSHIKAZU ,  SHIBATA TOHRU

IPC: A61M1/16 ,  A61M1/34 ,  B01D39/16 ,  B01D61/00 ,  B01D67/00 ,  B01D69/02 ,  C12Q1/68 ,  G01N33/544 ,  B01D61/14 ,  B01J20/32 ,  A61L2/02

Abstract: A separating membrane having a porous membrane structure with a pore size distribution that the membrane does not permeate 90 percent or more of particles having a size of 0.5 micron when the membrane is 0.1 mm thick, being composed of a material having a nitrogen-containing compound, is liquid-permeable to adsorb and retain phosphopolyols contained in a liquid.

公开(公告)号：DE3579797D1

公开(公告)日：1990-10-25

申请号：DE3579797

申请日：1985-12-19

Applicant: DAICEL CHEM

Inventor： ISHII KUNIO ,  SHIBATA TOHRU

IPC: C07C49/707 ,  B01J20/32 ,  C07B31/00 ,  C07B57/00 ,  C07C45/00 ,  C07C45/78 ,  C07C45/79 ,  C07C67/00 ,  C07C69/013 ,  C07C69/14 ,  C07C49/753 ,  C07C69/145

Abstract: The optical resolution of an enantiomer mixture of oxycyclopentenone or a derivative thereof is conducted with a polysaccharide derivative.

公开(公告)号：DE3570986D1

公开(公告)日：1989-07-20

申请号：DE3570986

申请日：1985-03-27

Applicant: DAICEL CHEM

Inventor： SHIBATA TOHRU ,  NAMIKOSHI HAJIME ,  OKAMOTO ICHIRO

IPC: C07D301/32 ,  B01D15/08 ,  B01J20/24 ,  B01J20/291 ,  B01J20/32 ,  C07B31/00 ,  C07B57/00 ,  C07B63/00 ,  C07C45/00 ,  C07C45/78 ,  C07C45/90 ,  C07C49/215 ,  C07C49/613 ,  C07C67/00 ,  C07C231/00 ,  C07C231/20 ,  C07C233/33 ,  C07C233/38 ,  G01N30/88

公开(公告)号：DE3461918D1

公开(公告)日：1987-02-12

申请号：DE3461918

申请日：1984-03-07

Applicant: DAICEL CHEM

Inventor： YUKI YOICHI ,  OKAMOTO ICHIRO ,  SHIBATA TOHRU ,  NAKAMURA HIROYUKI

IPC: C07B57/00 ,  B01D15/08 ,  B01J20/281 ,  C07B31/00 ,  C07B63/00 ,  C07C45/78 ,  C07C67/00 ,  C08B3/06

Abstract: This invention relates to an optical resolving agent containing cellulose acetate of the II type and provides an optical resolving agent which exhibits an excellent power of resolving various isomers, in particular, optical isomers which have been difficult to resolve. The cellulose triacetate of type II used in the invention can be either relatively highly crystalline or relatively non-crystalline (amorphous).