GB1438543A – – Google Patents
GB1438543A – – Google Patents
Info
Publication number
GB1438543A
GB1438543A
GB3695673A
GB3695673A
GB1438543A
GB 1438543 A
GB1438543 A
GB 1438543A
GB 3695673 A
GB3695673 A
GB 3695673A
GB 3695673 A
GB3695673 A
GB 3695673A
GB 1438543 A
GB1438543 A
GB 1438543A
Authority
GB
United Kingdom
Prior art keywords
copolymer
salt
aug
copolymers
carbon atoms
Prior art date
1972-08-04
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
GB3695673A
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.)
1972-08-04
Filing date
1973-08-03
Publication date
1976-06-09
1973-08-03
Application filed
filed
Critical
1976-06-09
Publication of GB1438543A
publication
Critical
patent/GB1438543A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
Classifications
C—CHEMISTRY; METALLURGY
C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
C11D3/16—Organic compounds
C11D3/37—Polymers
C11D3/3746—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
C11D3/3757—(Co)polymerised carboxylic acids, -anhydrides, -esters in solid and liquid compositions
C11D3/3761—(Co)polymerised carboxylic acids, -anhydrides, -esters in solid and liquid compositions in solid compositions
C—CHEMISTRY; METALLURGY
C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
C02F5/00—Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
C02F5/08—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents
C02F5/10—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances
C—CHEMISTRY; METALLURGY
C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
C08L31/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an acyloxy radical of a saturated carboxylic acid, of carbonic acid or of a haloformic acid; Compositions of derivatives of such polymers
C08L31/02—Homopolymers or copolymers of esters of monocarboxylic acids
C—CHEMISTRY; METALLURGY
C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
C08L35/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a carboxyl radical, and containing at least one other carboxyl radical in the molecule, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
Abstract
1438543 Softening water CONSORTIUM FUR ELECTROCHEMISCHE INDUSTRIE GmbH 3 Aug 1973 [4 Aug 1972] 36956/73 Heading C1C [Also in Divisions C3 and C5] In a water-softening process a cation is complexed by using a 1 : 1-copolymer comprising (i) units derived from an ester of a snuglyunsaturated primary alcohol having from 3 to 10 carbon atoms with a saturated carboxylic acid having up to 6 carbon atoms, and (ii) units derived from maleic anhydride or maleic acid, or a salt of such a copolymer. The term «1 : 1-copolymer» refers to copolymers wherein the components are used in a 1 : 1 molar ratio and copolymers wherein the deviation from this ratio is up to 10%. The copolymer or salt may be in admixture with a salt derived from a strong base and a weak acid.
GB3695673A
1972-08-04
1973-08-03
Expired
GB1438543A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
DE2238375A
DE2238375C3
(en)
1972-08-04
1972-08-04
Use of copolymers as complexing agents in water softening
Publications (1)
Publication Number
Publication Date
GB1438543A
true
GB1438543A
(en)
1976-06-09
Family
ID=5852640
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB3695673A
Expired
GB1438543A
(en)
1972-08-04
1973-08-03
Country Status (15)
Country
Link
JP
(1)
JPS5322549B2
(en)
AT
(1)
AT335586B
(en)
AU
(1)
AU5880673A
(en)
BE
(1)
BE803218A
(en)
CA
(1)
CA1004452A
(en)
CH
(1)
CH590178A5
(en)
DD
(1)
DD104918A5
(en)
DE
(1)
DE2238375C3
(en)
FR
(1)
FR2194652B1
(en)
GB
(1)
GB1438543A
(en)
IL
(1)
IL42898A
(en)
IT
(1)
IT990114B
(en)
NL
(1)
NL7310654A
(en)
SE
(1)
SE387619B
(en)
ZA
(1)
ZA735302B
(en)
Families Citing this family (2)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
JPS5752390Y2
(en)
*
1975-05-19
1982-11-13
JPS59479A
(en)
*
1982-06-22
1984-01-05
松田 悦一
Suspension car for moving wall
1972
1972-08-04
DE
DE2238375A
patent/DE2238375C3/en
not_active
Expired
1973
1973-07-13
DD
DD172277A
patent/DD104918A5/xx
unknown
1973-08-01
NL
NL7310654A
patent/NL7310654A/xx
not_active
Application Discontinuation
1973-08-02
SE
SE7310664A
patent/SE387619B/en
unknown
1973-08-02
AU
AU58806/73A
patent/AU5880673A/en
not_active
Expired
1973-08-02
IT
IT51790/73A
patent/IT990114B/en
active
1973-08-02
FR
FR7328335A
patent/FR2194652B1/fr
not_active
Expired
1973-08-03
ZA
ZA735302A
patent/ZA735302B/en
unknown
1973-08-03
CH
CH1131373A
patent/CH590178A5/xx
not_active
IP Right Cessation
1973-08-03
IL
IL42898A
patent/IL42898A/en
unknown
1973-08-03
GB
GB3695673A
patent/GB1438543A/en
not_active
Expired
1973-08-03
AT
AT684673A
patent/AT335586B/en
active
1973-08-03
BE
BE134239A
patent/BE803218A/en
unknown
1973-08-03
JP
JP8743873A
patent/JPS5322549B2/ja
not_active
Expired
1973-08-07
CA
CA178,238A
patent/CA1004452A/en
not_active
Expired
Also Published As
Publication number
Publication date
JPS4953578A
(en)
1974-05-24
IL42898A
(en)
1977-01-31
SE387619B
(en)
1976-09-13
JPS5322549B2
(en)
1978-07-10
IL42898A0
(en)
1973-11-28
DE2238375A1
(en)
1974-02-14
BE803218A
(en)
1974-02-04
IT990114B
(en)
1975-06-20
DD104918A5
(en)
1974-04-05
ATA684673A
(en)
1976-07-15
NL7310654A
(en)
1974-02-06
DE2238375C3
(en)
1979-07-26
DE2238375B2
(en)
1978-11-16
AU5880673A
(en)
1975-02-06
AT335586B
(en)
1977-03-25
CA1004452A
(en)
1977-02-01
FR2194652B1
(en)
1975-08-22
FR2194652A1
(en)
1974-03-01
ZA735302B
(en)
1974-07-31
CH590178A5
(en)
1977-07-29
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Legal Events
Date
Code
Title
Description
1976-10-20
PS
Patent sealed [section 19, patents act 1949]
1980-03-19
PCNP
Patent ceased through non-payment of renewal fee
