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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
B01D 11/02 2006.1
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
11Solvent extraction
02of solids
C08J 7/02 2006.1
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H142
7Chemical treatment or coating of shaped articles made of macromolecular substances
02with solvents, e.g. swelling agents
CPC
B01D 11/0203
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
11Solvent extraction
02of solids
0203with a supercritical fluid
C08F 18/08
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
18Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an acyloxy radical of a saturated carboxylic acid, of carbonic acid or of a haloformic acid
02Esters of monocarboxylic acids
04Vinyl esters
08Vinyl acetate
C08J 5/18
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G
5Manufacture of articles or shaped materials containing macromolecular substances
18Manufacture of films or sheets
Applicants
  • 学校法人日本大学 NIHON UNIVERSITY [JP]/[JP] (AllExceptUS)
  • 株式会社国際マイクロ写真工業社 KOKUSAI MICROFILM CO., INC. [JP]/[JP] (AllExceptUS)
  • 澤口 孝志 SAWAGUCHI, Takashi [JP]/[JP] (UsOnly)
  • 矢野 彰一郎 YANO, Shoichiro [JP]/[JP] (UsOnly)
  • 森松 義喬 MORIMATSU, Yoshitaka [JP]/[JP] (UsOnly)
  • 榊 満塁 SAKAKI, Mitsuru [JP]/[JP] (UsOnly)
Inventors
  • 澤口 孝志 SAWAGUCHI, Takashi
  • 矢野 彰一郎 YANO, Shoichiro
  • 森松 義喬 MORIMATSU, Yoshitaka
  • 榊 満塁 SAKAKI, Mitsuru
Agents
  • 高木 千嘉 TAKAGI, Chiyoshi
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。
Related patent documents
EP2004702449This application is not viewable in PATENTSCOPE because the national phase entry has not been published yet or the national entry is issued from a country that does not share data with WIPO or there is a formatting issue or an unavailability of the application.
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