IT1179078B - Prepn. of high mol.wt. acrylonitrile polymers - Google Patents

Prepn. of high mol.wt. acrylonitrile polymers

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Publication number
IT1179078B
IT1179078B IT67852/84A IT6785284A IT1179078B IT 1179078 B IT1179078 B IT 1179078B IT 67852/84 A IT67852/84 A IT 67852/84A IT 6785284 A IT6785284 A IT 6785284A IT 1179078 B IT1179078 B IT 1179078B
Authority
IT
Italy
Prior art keywords
pref
prepn
soluble
monomer
mol
Prior art date
Application number
IT67852/84A
Other languages
Italian (it)
Other versions
IT8467852A0 (en
IT8467852A1 (en
Inventor
Kobashi Toshiyuki
Takagi Shoyo
Original Assignee
Japan Exlan Co Ltd
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 Japan Exlan Co Ltd filed Critical Japan Exlan Co Ltd
Priority to IT67852/84A priority Critical patent/IT1179078B/en
Publication of IT8467852A0 publication Critical patent/IT8467852A0/en
Publication of IT8467852A1 publication Critical patent/IT8467852A1/en
Application granted granted Critical
Publication of IT1179078B publication Critical patent/IT1179078B/en

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

Abstract

Prepn. of acrylonitrile (AN) polymers of high mol. wt. (wt. ave. mol. wt. 400,000 or more, pref. 1000000) wherein AN-monomer alone or a mixt. of AN-monomer (85 wt.% or more) with ethylenically unsatd. cpds. suspension (co)polymerised in an aq. medium contg. a water-soluble high molecular substance, using an oil-soluble radical initiator, so that at least 9 wt.% of monomer component is always present in the polymer-isation system throughout the polymerisation. Comonomers are vinyl chloride, acrylic acid, methyl acrylate, etc. Pref. water-soluble high molecular substances are polyvinyl alcohols, more pref. partially saponified polyvinyl alcohols having a saponification degree of 85-95%. Pref. oil-soluble radical initiators are azo-cpds. such as 2,2'-azobisisobutyronitrile or 2,2'-azobis(2,4 -dimethyl-valeronitrile). Polymerisation is pref. carried out while stirring at a power of 1-10 KWH/cu.m.
IT67852/84A 1984-08-27 1984-08-27 Prepn. of high mol.wt. acrylonitrile polymers IT1179078B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
IT67852/84A IT1179078B (en) 1984-08-27 1984-08-27 Prepn. of high mol.wt. acrylonitrile polymers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT67852/84A IT1179078B (en) 1984-08-27 1984-08-27 Prepn. of high mol.wt. acrylonitrile polymers

Publications (3)

Publication Number Publication Date
IT8467852A0 IT8467852A0 (en) 1984-08-27
IT8467852A1 IT8467852A1 (en) 1986-02-27
IT1179078B true IT1179078B (en) 1987-09-16

Family

ID=11305786

Family Applications (1)

Application Number Title Priority Date Filing Date
IT67852/84A IT1179078B (en) 1984-08-27 1984-08-27 Prepn. of high mol.wt. acrylonitrile polymers

Country Status (1)

Country Link
IT (1) IT1179078B (en)

Also Published As

Publication number Publication date
IT8467852A0 (en) 1984-08-27
IT8467852A1 (en) 1986-02-27

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Effective date: 19950831