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GB1399129A - Terpolymers - Google Patents

Terpolymers

Info

Publication number
GB1399129A
GB1399129A GB4442072A GB4442072A GB1399129A GB 1399129 A GB1399129 A GB 1399129A GB 4442072 A GB4442072 A GB 4442072A GB 4442072 A GB4442072 A GB 4442072A GB 1399129 A GB1399129 A GB 1399129A
Authority
GB
United Kingdom
Prior art keywords
acrylamide
dimethylamino
methyl
terpolymers
water
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
GB4442072A
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.)
GAF Corp
Original Assignee
GAF 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 GAF Corp filed Critical GAF Corp
Publication of GB1399129A publication Critical patent/GB1399129A/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
    • 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
    • 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

Landscapes

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

Abstract

1399129 Dewatering sludges GAF CORP 26 Sept 1972 [18 Oct 1971] 44420/72 Heading C1C [Also in Divisions C3 and D2] Novel terpolymers of acrylamide, N-dimethylamino-methyl acrylamide, and a third ethylenically unsaturated monomer of limited solubility in water, are used as flocculants in water treatment, especially to facilitate easy filtering of aqueous suspensions. In an example, a terpolymer of acrylamide, N-dimethylamino-methyl acrylamide and methyl methacrylate is used to ease the filtration of an aqueous sludge.
GB4442072A 1971-10-18 1972-09-26 Terpolymers Expired GB1399129A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US19040471A 1971-10-18 1971-10-18

Publications (1)

Publication Number Publication Date
GB1399129A true GB1399129A (en) 1975-06-25

Family

ID=22701207

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4442072A Expired GB1399129A (en) 1971-10-18 1972-09-26 Terpolymers

Country Status (7)

Country Link
JP (1) JPS5128270B2 (en)
BE (1) BE790187A (en)
CA (1) CA984544A (en)
DE (1) DE2249925A1 (en)
GB (1) GB1399129A (en)
IL (1) IL40489A (en)
NL (1) NL7214072A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4396752A (en) 1977-05-16 1983-08-02 Societe Francaise Hoechst Strong cationic polyelectrolytes in powder form based on acrylamide and quaternized or salified dimethylaminoethyl acrylate for flocculation of solid material suspensions and coalescence of emulsions
EP0165770A3 (en) * 1984-06-12 1987-03-04 Allied Colloids Limited Cationic polyelectrolytes and their production
WO1989002417A1 (en) * 1987-09-10 1989-03-23 Chemisolv Limited Improvements in or relating to effluent treatment

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4396752A (en) 1977-05-16 1983-08-02 Societe Francaise Hoechst Strong cationic polyelectrolytes in powder form based on acrylamide and quaternized or salified dimethylaminoethyl acrylate for flocculation of solid material suspensions and coalescence of emulsions
EP0165770A3 (en) * 1984-06-12 1987-03-04 Allied Colloids Limited Cationic polyelectrolytes and their production
WO1989002417A1 (en) * 1987-09-10 1989-03-23 Chemisolv Limited Improvements in or relating to effluent treatment

Also Published As

Publication number Publication date
NL7214072A (en) 1973-04-24
BE790187A (en) 1973-02-15
JPS4849687A (en) 1973-07-13
CA984544A (en) 1976-02-24
DE2249925A1 (en) 1973-04-26
IL40489A (en) 1976-03-31
IL40489A0 (en) 1972-12-29
JPS5128270B2 (en) 1976-08-18

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees