FR2072220A5 - Crotonic acid-vinylalcohol copolymers - Google Patents

Crotonic acid-vinylalcohol copolymers

Info

Publication number
FR2072220A5
FR2072220A5 FR7041851A FR7041851A FR2072220A5 FR 2072220 A5 FR2072220 A5 FR 2072220A5 FR 7041851 A FR7041851 A FR 7041851A FR 7041851 A FR7041851 A FR 7041851A FR 2072220 A5 FR2072220 A5 FR 2072220A5
Authority
FR
France
Prior art keywords
crotonic acid
vinylalcohol copolymers
vinylalcohol
copolymers
flocculation
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
FR7041851A
Other languages
French (fr)
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.)
GCP Products UK Ltd
WR Grace and Co Conn
Original Assignee
WR Grace Ltd
WR Grace and Co Conn
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 WR Grace Ltd, WR Grace and Co Conn filed Critical WR Grace Ltd
Application granted granted Critical
Publication of FR2072220A5 publication Critical patent/FR2072220A5/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
    • 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
    • C08F8/00—Chemical modification by after-treatment
    • C08F8/44—Preparation of metal salts or ammonium salts

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Water Supply & Treatment (AREA)
  • Environmental & Geological Engineering (AREA)
  • Engineering & Computer Science (AREA)
  • Hydrology & Water Resources (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Paints Or Removers (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)
  • Separation Of Suspended Particles By Flocculating Agents (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)

Abstract

In the title copolymer the crotonic acid units are present at 1-30 wt. %. The products are used as coagulation aids in flocculation of aq. suspensions.
FR7041851A 1969-12-30 1970-11-20 Crotonic acid-vinylalcohol copolymers Expired FR2072220A5 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US88929569A 1969-12-30 1969-12-30

Publications (1)

Publication Number Publication Date
FR2072220A5 true FR2072220A5 (en) 1971-09-24

Family

ID=25394869

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7041851A Expired FR2072220A5 (en) 1969-12-30 1970-11-20 Crotonic acid-vinylalcohol copolymers

Country Status (3)

Country Link
DE (1) DE2057047A1 (en)
ES (1) ES385696A1 (en)
FR (1) FR2072220A5 (en)

Also Published As

Publication number Publication date
DE2057047A1 (en) 1971-07-01
ES385696A1 (en) 1973-04-01

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