Title:
CELLULOSE ETHER DERIVATIVE FINE PARTICLES
Document Type and Number:
WIPO Patent Application WO/2017/073626
Kind Code:
A1
Abstract:
Provided are cellulose ether derivative fine particles that have an average particle size of 1-1000 μm, a linseed oil absorption of 50-1000 mL/100 g, and an average surface pore size of 0.05-5 μm, and that are obtained by mixing a cellulose ether derivative (A), a polymer (B) that is not a cellulose ether derivative, and an alcohol solvent (C), phase-separating the mixture into two phases which are a solution phase containing the cellulose ether derivative (A) as the main component and a solution phase containing the polymer (B) as the main component, forming an emulsion in a system in which the solvents of the two phases obtained by the phase separation are substantially the same, and thereafter, bringing the emulsion into contact with a poor solvent (D).
Inventors:
OTSUBO TAKAHIKO (JP)
OHTA KOTOE (JP)
ECHIGO YUJI (JP)
TAKEZAKI HIROSHI (JP)
TAKAKI SUGURU (JP)
MINAKAMI SATOSHI (JP)
ITO AKINORI (JP)
MIYAMA HISASHI (JP)
OHTA KOTOE (JP)
ECHIGO YUJI (JP)
TAKEZAKI HIROSHI (JP)
TAKAKI SUGURU (JP)
MINAKAMI SATOSHI (JP)
ITO AKINORI (JP)
MIYAMA HISASHI (JP)
Application Number:
PCT/JP2016/081748
Publication Date:
May 04, 2017
Filing Date:
October 26, 2016
Export Citation:
Assignee:
TORAY INDUSTRIES (JP)
International Classes:
C08B11/02
Domestic Patent References:
| WO2012033223A1 | 2012-03-15 |
Foreign References:
| JPH01275601A | 1989-11-06 | |||
| JPH10237101A | 1998-09-08 | |||
| JPH11158202A | 1999-06-15 | |||
| EP3011956A1 | 2016-04-27 |
Other References:
See also references of EP 3369749A4
Attorney, Agent or Firm:
TOKKYO GYOMUHOJIN MEISEI INTERNATIONAL PATENT FIRM (JP)
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