公开(公告)号：DE69637298T2

公开(公告)日：2008-02-28

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 SHU ,  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：DE69623510T2

公开(公告)日：2003-01-09

申请号：DE69623510

申请日：1996-01-19

Applicant: FUJI PHOTO FILM CO LTD ,  DAICEL CHEM

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

IPC: C08J3/09 ,  C08J5/18 ,  C08L1/12

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：DE69527756D1

公开(公告)日：2002-09-19

申请号：DE69527756

申请日：1995-09-22

Applicant: DAICEL CHEM

Inventor： ASAI TANEMI ,  SHIMAMOTO SYU ,  MATSUMURA HIROYUKI ,  SHIBATA TOHRU

IPC: A24D3/10 ,  C08B3/20

公开(公告)号：DE69520816D1

公开(公告)日：2001-06-07

申请号：DE69520816

申请日：1995-10-10

Applicant: DAICEL CHEM

Inventor： MATSUMURA HIROYUKI ,  SHIMAMOTO SYU ,  SHIBATA TOHRU

IPC: A24D3/10

Abstract: A tobacco filter is produced by wrapping up a sheet-like filter material having a web structure and comprising a cellulose ester short staple into a rod-form. As the cellulose ester short staple, a short staple that is non-crimped and/or has a modified cross section where a ratio D1/D2 of a diameter D1 of the circumscribed circle to a diameter D2 of the inscribed circle, each circle being of the cross section, of not less than 2 is used. The short staple includes e.g. a cellulose acetate fiber with an average fiber length of 1 to 10 mm and fineness of 1 to 10 deniers. The short staple may be incorporated with a beaten pulp with a Schopper-Riegler freeness of 20 to 90 DEG SR and/or a binder. The ratio of the short staple to the beaten pulp may for example be about 90/10 to 20/80 (by weight).

公开(公告)号：ES2068975T3

公开(公告)日：1995-05-01

申请号：ES90123316

申请日：1990-12-05

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：DK0431593T3

公开(公告)日：1995-05-01

申请号：DK90123316

申请日：1990-12-05

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 ,  A61L2/02 ,  B01D61/14

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：DD296620A5

公开(公告)日：1991-12-12

申请号：DD34308790

申请日：1990-07-26

Applicant: DAICEL CHEM ,  TANABE SEIYAKU CO

Inventor： NAGAMATSU SHINJI ,  TANAKA YOSHIKAZU ,  SHIBATA TOHRU

IPC: B01D65/00 ,  A61M1/16 ,  A61M1/34 ,  B01D15/00 ,  B01D61/36 ,  B01D71/10 ,  B01D71/36 ,  B01D71/38 ,  B01D71/56 ,  B01D71/82 ,  C08J9/00 ,  D01F6/14 ,  D21H13/26

公开(公告)号：DE3580286D1

公开(公告)日：1990-12-06

申请号：DE3580286

申请日：1985-01-30

Applicant: DAICEL CHEM

Inventor： SHIBATA TOHRU ,  OKAMOTO ICHIRO

IPC: C07B57/00 ,  B01J20/24 ,  B01J20/291 ,  C07B31/00 ,  C07B63/00 ,  C07C45/78 ,  C07C67/00 ,  C08B5/04 ,  G01N30/88 ,  G01N30/48

公开(公告)号：DE3483311D1

公开(公告)日：1990-10-31

申请号：DE3483311

申请日：1984-12-20

Applicant: DAICEL CHEM

Inventor： OKAMOTO YOSHIO ,  HATADA KOICHI ,  SHIBATA TOHRU ,  OKAMOTO ICHIRO ,  NAKAMURA HIROYUKI ,  NAMIKOSHI HAJIME ,  YUKI YOICHI

IPC: B01D15/08 ,  B01D15/38 ,  B01J20/22 ,  B01J20/286 ,  B01J20/29 ,  B01J20/32 ,  C07C45/78

公开(公告)号：JPH0995538A

公开(公告)日：1997-04-08

申请号：JP34461795

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: C08J3/11 ,  C08J5/18

Abstract: PROBLEM TO BE SOLVED: To obtain a stable solution of a cellulose acetate in an organic solvent other than a halogenated hydrocarbon. SOLUTION: In this solution of a cellulose acetate having an average degree of acetylation of 58.0-62.5% in a solvent, the solvent comprises an organic solvent containing substantially no halogenated hydrocarbon and selected from 3-12C ethers, 4-12C ketones and 3-12C esters.