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1. WO2004096899 - METHOD FOR REMOVING ACID COMPONENT IN DETERIORATED ACETATE FILM

Publication Number WO/2004/096899
Publication Date 11.11.2004
International Application No. PCT/JP2004/000232
International Filing Date 15.01.2004
Chapter 2 Demand Filed 16.01.2004
IPC
B PERFORMING OPERATIONS; TRANSPORTING
01
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
D
SEPARATION
11
Solvent extraction
02
of solids
C CHEMISTRY; METALLURGY
08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
J
WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H142
7
Chemical treatment or coating of shaped articles made of macromolecular substances
02
with solvents, e.g. swelling agents
B01D 11/02 (2006.01)
C08J 7/02 (2006.01)
CPC
B01D 11/0203
Applicants
  • 学校法人日本大学 NIHON UNIVERSITY [JP/JP]; 〒1028275 東京都千代田区九段南四丁目8番24号 Tokyo 8-24, Kudan-Minami 4-Chome, Chiyoda-ku Tokyo 1028275, JP (AllExceptUS)
  • 株式会社国際マイクロ写真工業社 KOKUSAI MICROFILM CO., INC. [JP/JP]; 〒1620833 東京都新宿区箪笥町4番地3 Tokyo 4-3, Tansumachi, Shinjuku-ku Tokyo 1620833, JP (AllExceptUS)
  • 澤口 孝志 SAWAGUCHI, Takashi [JP/JP]; JP (UsOnly)
  • 矢野 彰一郎 YANO, Shoichiro [JP/JP]; JP (UsOnly)
  • 森松 義喬 MORIMATSU, Yoshitaka [JP/JP]; JP (UsOnly)
  • 榊 満塁 SAKAKI, Mitsuru [JP/JP]; JP (UsOnly)
Inventors
  • 澤口 孝志 SAWAGUCHI, Takashi; JP
  • 矢野 彰一郎 YANO, Shoichiro; JP
  • 森松 義喬 MORIMATSU, Yoshitaka; JP
  • 榊 満塁 SAKAKI, Mitsuru; JP
Agents
  • 高木 千嘉 TAKAGI, Chiyoshi; 〒1020083 東京都千代田区麹町一丁目10番地 麹町広洋ビル すばる特許事務所 Tokyo Subaru Patent Office, Kojimachi Koyo Bldg. 10, Kojimachi 1-chome, Chiyoda-ku Tokyo 1020083, JP
Priority Data
2003-12382828.04.2003JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) METHOD FOR REMOVING ACID COMPONENT IN DETERIORATED ACETATE FILM
(FR) PROCEDE PERMETTANT D'ELIMINER UNE COMPOSANTE ACIDE DANS UNE PELLICULE D'ACETATE DETERIOREE
(JA) 劣化アセテートフィルムの酸成分除去方法
Abstract
(EN)
A method for removing an acid component in an deteriorated acetate film, characterized in that it comprises extracting the acid component from the surface and the inside of the deteriorated acetate film, wherein said extraction involves an extraction treatment with a solvent and a pressure reducing (heating) treatment. The method can be suitably used for removing an acid component formed from the deterioration of an acetate film due to its storage and allows the suppression of the acceleration of deterioration owing to the continuation of storage.
(FR)
L'invention a trait à un procédé permettant d'éliminer une composante acide dans une pellicule d'acétate détériorée. Le procédé selon l'invention est caractérisé en ce qu'il comprend l'étape consistant à extraire la composante acide de la surface et de l'intérieur de la pellicule d'acétate détériorée, ladite extraction consistant en un traitement d'extraction faisant appel à un solvant et en un traitement de réduction de la pression (chauffage). Le procédé peut parfaitement servir à éliminer une composante acide formée par la détérioration d'une pellicule d'acétate due au stockage de cette dernière, et permet de freiner la détérioration causée par la poursuite du stockage.
(JA)
アセテートフィルムの保存による劣化から生じる表面及び内部の酸成分を除去する方法が提供される。かかる方法は、劣化アセテートフィルムの表面、及び内部から酸成分を抽出して除去することを特徴とし、該抽出には、溶媒抽出処理、および減圧(加熱)処理が含まれる。この方法によりアセテートフィルムの保存による劣化促進が抑制される。
Also published as
EP2004702449
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