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1. KR1020060008837 - METHOD FOR REMOVING ACID COMPONENT IN DETERIORATED ACETATE FILM

Office
Republic of Korea
Application Number 1020047001503
Application Date 30.01.2004
Publication Number 1020060008837
Publication Date 27.01.2006
Grant Number 1010853630000
Grant Date 21.11.2011
Publication Kind B1
IPC
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 or C08H142
5Manufacture of articles or shaped materials containing macromolecular substances
18Manufacture of films or sheets
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 or 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
Applicants NIHON UNIVERSITY
KOKUSAI MICROFILM CO., INC.
니혼 유니버서티
가부시키가이샤고쿠사이마이크로샤싱고교샤
Inventors SAWAGUCHI TAKASHI
사와구치 다카시
YANO SHOICHIRO
야노 쇼이치로
MORIMATSU YOSHITAKA
모리마쓰 요시타카
SAKAKI MITSURU
사카키 미쓰루
Agents 이병호
김영관
홍동오
Priority Data JP-P-2003-00123828 28.04.2003 JP
Title
(EN) METHOD FOR REMOVING ACID COMPONENT IN DETERIORATED ACETATE FILM
(KO) 열화 아세테이트 필름의 산 성분 제거방법
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.

© KIPO & WIPO 2007

(KO)
아세테이트 필름의 보존에 의한 열화로부터 발생하는 표면 및 내부의 산 성분을 제거하는 방법이 제공된다. 이러한 방법은 열화 아세테이트 필름의 표면 및 내부로부터 산 성분을 추출하여 제거함을 특징으로 하며, 당해 추출에는 용매추출 처리 및 감압(가열)처리가 포함된다. 이러한 방법에 의해 아세테이트 필름의 보존에 의한 열화 촉진이 억제된다.

Also published as
EP2004702449