FR2228076A1 - Water-soluble high-mol. linear poly-acryl-amide and prodn. - in aq. solns. using high energy ionising radiation - Google Patents

Water-soluble high-mol. linear poly-acryl-amide and prodn. - in aq. solns. using high energy ionising radiation

Info

Publication number
FR2228076A1
FR2228076A1 FR7415107A FR7415107A FR2228076A1 FR 2228076 A1 FR2228076 A1 FR 2228076A1 FR 7415107 A FR7415107 A FR 7415107A FR 7415107 A FR7415107 A FR 7415107A FR 2228076 A1 FR2228076 A1 FR 2228076A1
Authority
FR
France
Prior art keywords
ionising radiation
high energy
solns
prodn
acryl
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
FR7415107A
Other languages
French (fr)
Other versions
FR2228076B1 (en
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.)
Zeneca Inc
Original Assignee
ICI Americas Inc
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 ICI Americas Inc filed Critical ICI Americas Inc
Publication of FR2228076A1 publication Critical patent/FR2228076A1/en
Application granted granted Critical
Publication of FR2228076B1 publication Critical patent/FR2228076B1/fr
Granted 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
    • C08F20/52—Amides or imides
    • C08F20/54—Amides, e.g. N,N-dimethylacrylamide or N-isopropylacrylamide
    • C08F20/56—Acrylamide; Methacrylamide
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F2/00—Demodulating light; Transferring the modulation of modulated light; Frequency-changing of light
    • G02F2/002—Demodulating light; Transferring the modulation of modulated light; Frequency-changing of light using optical mixing

Landscapes

  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Optics & Photonics (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Separation Of Suspended Particles By Flocculating Agents (AREA)
  • Paper (AREA)
  • Polymerisation Methods In General (AREA)

Abstract

The polymer (I) has a specific viscosity is not 20 dl/g in 2N NaCl soln. at 25.5 degrees C and a Huggins constant 0.2 and contains 50-99 wt% acrylamide (II) and 1-50% acrylic monomer (III), i.e. acrylic acid or its alkali metal salts. (I) is used as thickeners, flocculant, viscosity regulator etc. e.g. in the treatment of sewage, muds from ore processing, paper mfr. and petroleum recovery and is effective at low concns. It is produced by exposing an aq. soln. contg. 25-60% (II) or (II) and (III) to high energy ionising radiation with an intensity of 1000-7500 (5000-5000) rads/h. at a total dosage of 500-7500 (1000-5000) rads, until is not >75 (15-60) wt% monomer is converted to polymer. Up to 5 wt% of another ethylenically unsatd. monomer can be added.
FR7415107A 1973-05-04 1974-04-30 Water-soluble high-mol. linear poly-acryl-amide and prodn. - in aq. solns. using high energy ionising radiation Granted FR2228076A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US35732973A 1973-05-04 1973-05-04

Publications (2)

Publication Number Publication Date
FR2228076A1 true FR2228076A1 (en) 1974-11-29
FR2228076B1 FR2228076B1 (en) 1979-02-16

Family

ID=23405143

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7415107A Granted FR2228076A1 (en) 1973-05-04 1974-04-30 Water-soluble high-mol. linear poly-acryl-amide and prodn. - in aq. solns. using high energy ionising radiation

Country Status (6)

Country Link
JP (1) JPS5014790A (en)
CA (1) CA1025596A (en)
DE (1) DE2421020C3 (en)
FR (1) FR2228076A1 (en)
GB (1) GB1437281A (en)
IT (1) IT1004273B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2348227A1 (en) * 1976-04-14 1977-11-10 Rhone Poulenc Ind IMPROVEMENT IN PROCESSES FOR THE PREPARATION OF WATER-SOLUBLE ACRYLIC POLYMERS BY PHOTOPOLYMERIZATION
US4599390A (en) * 1983-03-11 1986-07-08 Union Carbide Corporation High molecular weight water-soluble polymers and flocculation method using same
JPS59223710A (en) * 1983-06-01 1984-12-15 Sanyo Chem Ind Ltd Polymer for increasing production of crude petroleum
US4704198A (en) * 1984-04-27 1987-11-03 E. I. Du Pont De Nemours And Company Porosity gradient electrophoresis gel
US5185385A (en) * 1987-01-13 1993-02-09 Texaco Chemical Company Polymerization process

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1645065B2 (en) * 1966-02-22 1973-11-29 Nautschno-Issledowatelskij Fisikochimitschesky Institut Imeni S.J. Karpowa, Moskau Process for the production of high molecular weight, water-soluble Polyacrylami
GB1279108A (en) * 1968-12-06 1972-06-28 Atlas Chem Ind Water-soluble nitrogen-containing vinyl polymers of high molecular weight

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NEANT *

Also Published As

Publication number Publication date
CA1025596A (en) 1978-01-31
DE2421020C3 (en) 1983-11-17
DE2421020A1 (en) 1974-11-21
DE2421020B2 (en) 1979-10-31
FR2228076B1 (en) 1979-02-16
JPS5014790A (en) 1975-02-17
GB1437281A (en) 1976-05-26
IT1004273B (en) 1976-07-10

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Legal Events

Date Code Title Description
ST Notification of lapse