JPS57209910A - Removal of high molecular substance by washing - Google Patents

Removal of high molecular substance by washing

Info

Publication number
JPS57209910A
JPS57209910A JP9379681A JP9379681A JPS57209910A JP S57209910 A JPS57209910 A JP S57209910A JP 9379681 A JP9379681 A JP 9379681A JP 9379681 A JP9379681 A JP 9379681A JP S57209910 A JPS57209910 A JP S57209910A
Authority
JP
Japan
Prior art keywords
washing
mixture
substance
alkylamide
removal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP9379681A
Other languages
Japanese (ja)
Other versions
JPS61848B2 (en
Inventor
Masahiro Kaneko
Tadashi Asanuma
Shinryu Uchikawa
Ichiro Fujikage
Tetsunosuke Shiomura
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsui Toatsu Chemicals Inc
Toyo Engineering Corp
Original Assignee
Mitsui Toatsu Chemicals Inc
Toyo Engineering Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsui Toatsu Chemicals Inc, Toyo Engineering Corp filed Critical Mitsui Toatsu Chemicals Inc
Priority to JP9379681A priority Critical patent/JPS57209910A/en
Priority to IN687/CAL/82A priority patent/IN158315B/en
Priority to GB08217465A priority patent/GB2101613B/en
Priority to MX193207A priority patent/MX164784B/en
Priority to US06/389,764 priority patent/US4468257A/en
Priority to IT21938/82A priority patent/IT1152424B/en
Priority to CA000405509A priority patent/CA1204371A/en
Priority to KR8202738A priority patent/KR890002372B1/en
Priority to BR8203624A priority patent/BR8203624A/en
Publication of JPS57209910A publication Critical patent/JPS57209910A/en
Publication of JPS61848B2 publication Critical patent/JPS61848B2/ja
Granted legal-status Critical Current

Links

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  • Detergent Compositions (AREA)
  • Polymerisation Methods In General (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)

Abstract

PURPOSE: To remove a high-MW substance deposited in the apparatus during the production or molding of an aromatic vinyl/acrylonitrile copolymer nearly completely within a short time, by washing the high-MW substance with a mixture of an alkylamide, a specified hydroxide and water.
CONSTITUTION: An apparatus for the production or molding an aromatic vinyl/ acrylonitrile copolymer, acrylonitrile content 5W33wt%, is charged with a mixture of an alkylamide (e.g., dimethylformamide) and/or an alkyl sulfoxide (e.g., dimethyl sulfoxide), 1.0×10-4W1.0g eq./l of a hydroxide of the formula, wherein n is 1 or 2 and when n=1, M is an alkali metal, and when n=2, M is an alkaline earth metal and 0.03W3.0wt% water. The mixture is heated, with stirring, to about the glass transition point of the high-MW compound or higher. In this way, the high-MW substance deposited on the apparatus is removed by washing.
COPYRIGHT: (C)1982,JPO&Japio
JP9379681A 1981-06-19 1981-06-19 Removal of high molecular substance by washing Granted JPS57209910A (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
JP9379681A JPS57209910A (en) 1981-06-19 1981-06-19 Removal of high molecular substance by washing
IN687/CAL/82A IN158315B (en) 1981-06-19 1982-06-15
GB08217465A GB2101613B (en) 1981-06-19 1982-06-16 Cleansing apparatus in which vinyl-acrylonitrile systems polymerise
MX193207A MX164784B (en) 1981-06-19 1982-06-17 METHOD FOR WASHING AND REMOVING HIGHLY MOLECULAR SUBSTANCES AND METHOD FOR RECOVERING THE WASHING SOLVENT
US06/389,764 US4468257A (en) 1981-06-19 1982-06-18 Washing and removal method of high molecular substances
IT21938/82A IT1152424B (en) 1981-06-19 1982-06-18 WASHING METHOD AND REMOVAL OF HIGH MOLECULAR WEIGHT SUBSTANCES AND WASHING SOLVENT RECOVERY METHOD
CA000405509A CA1204371A (en) 1981-06-19 1982-06-18 Washing and removal method of high molecular substances and recovery method of washing solvent
KR8202738A KR890002372B1 (en) 1981-06-19 1982-06-19 Washing and removal method of high moleculor substances
BR8203624A BR8203624A (en) 1981-06-19 1982-06-21 PROCESS FOR WASHING AND REMOVING HIGH MOLECULAR WEIGHT SUBSTANCES ADHERED INSIDE A PRODUCTION APPLIANCE OR MOLDING MACHINE IN THE PRODUCTION OR MOLDING OF AN AROMATIC-ACRYLONITRILLA VINYL COPOLYMER

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9379681A JPS57209910A (en) 1981-06-19 1981-06-19 Removal of high molecular substance by washing

Publications (2)

Publication Number Publication Date
JPS57209910A true JPS57209910A (en) 1982-12-23
JPS61848B2 JPS61848B2 (en) 1986-01-11

Family

ID=14092374

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9379681A Granted JPS57209910A (en) 1981-06-19 1981-06-19 Removal of high molecular substance by washing

Country Status (1)

Country Link
JP (1) JPS57209910A (en)

Also Published As

Publication number Publication date
JPS61848B2 (en) 1986-01-11

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