ES425194A1 - Polyacrylonitriles of low molecular weight and a process for their production - Google Patents

Polyacrylonitriles of low molecular weight and a process for their production

Info

Publication number
ES425194A1
ES425194A1 ES425194A ES425194A ES425194A1 ES 425194 A1 ES425194 A1 ES 425194A1 ES 425194 A ES425194 A ES 425194A ES 425194 A ES425194 A ES 425194A ES 425194 A1 ES425194 A1 ES 425194A1
Authority
ES
Spain
Prior art keywords
weight
low molecular
molecular weight
acrylonitrile
polyacrylonitriles
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.)
Expired
Application number
ES425194A
Other languages
Spanish (es)
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.)
Bayer AG
Original Assignee
Bayer AG
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 Bayer AG filed Critical Bayer AG
Publication of ES425194A1 publication Critical patent/ES425194A1/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F20/00—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride, ester, amide, imide or nitrile thereof
    • C08F20/02—Monocarboxylic acids having less than ten carbon atoms, Derivatives thereof
    • C08F20/42—Nitriles
    • C08F20/44—Acrylonitrile
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F2/00—Processes of polymerisation
    • C08F2/12—Polymerisation in non-solvents
    • C08F2/16—Aqueous medium

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Polymerisation Methods In General (AREA)
  • Artificial Filaments (AREA)
  • Polymerization Catalysts (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

Process for obtaining unitary, low molecular weight acrylonitrile polymers, or a predominant part of at least 80 by weight acrylonitrile, according to the precipitation polymerization procedure, characterized in that the polymerization is carried out in aqueous solution diluted, at pH values of 1.5 - 4, and in the presence of colorless complex formers, with low acrylonitrile concentrations of 0.1 - 1.5% by weight, based on the reaction mixture, with a redox catalyst water-soluble, in concentrations of 6 - 55% by weight, based on the monomer, in a semi-continuous or continuous form. (Machine-translation by Google Translate, not legally binding)
ES425194A 1973-04-13 1974-04-10 Polyacrylonitriles of low molecular weight and a process for their production Expired ES425194A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2318609A DE2318609C3 (en) 1973-04-13 1973-04-13 Process for the preparation of uniform low molecular weight polyacrylonitriles

Publications (1)

Publication Number Publication Date
ES425194A1 true ES425194A1 (en) 1976-06-16

Family

ID=5877914

Family Applications (1)

Application Number Title Priority Date Filing Date
ES425194A Expired ES425194A1 (en) 1973-04-13 1974-04-10 Polyacrylonitriles of low molecular weight and a process for their production

Country Status (12)

Country Link
JP (1) JPS5722044B2 (en)
BE (1) BE813535A (en)
CA (1) CA1023093A (en)
DD (1) DD114825A5 (en)
DE (1) DE2318609C3 (en)
ES (1) ES425194A1 (en)
FR (1) FR2225449B1 (en)
GB (1) GB1429138A (en)
IE (1) IE39127B1 (en)
IT (1) IT1007885B (en)
LU (1) LU69840A1 (en)
NL (1) NL7405109A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50149064U (en) * 1974-05-27 1975-12-11
JPS5251976A (en) * 1975-10-24 1977-04-26 Hitachi Ltd Chatter time measuring system
JPS58151850U (en) * 1982-04-06 1983-10-12 ヤンマー農機株式会社 Grain automatic grading device
DE3328276A1 (en) * 1983-08-05 1985-02-21 Hoechst Ag, 6230 Frankfurt LOW K VALY POLYACRYLNITRILE, PRODUCTION PROCESS AND SUITABLE USE

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL274858A (en) * 1961-02-20
US3488336A (en) * 1967-05-29 1970-01-06 Standard Oil Co Manufacture of thermoplastic polyacrylonitrile
US3627241A (en) * 1970-06-02 1971-12-14 Commerce Usa Projected image viewer support

Also Published As

Publication number Publication date
GB1429138A (en) 1976-03-24
CA1023093A (en) 1977-12-20
DD114825A5 (en) 1975-08-20
LU69840A1 (en) 1974-11-21
DE2318609A1 (en) 1974-10-31
JPS503186A (en) 1975-01-14
FR2225449A1 (en) 1974-11-08
DE2318609B2 (en) 1981-04-23
IE39127B1 (en) 1978-08-02
IE39127L (en) 1974-10-13
IT1007885B (en) 1976-10-30
JPS5722044B2 (en) 1982-05-11
NL7405109A (en) 1974-10-15
BE813535A (en) 1974-10-10
FR2225449B1 (en) 1979-05-25
DE2318609C3 (en) 1982-03-18

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