EP0193360A2
Expired / Lapsed
EP
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Detergent compositions
Assignee: Procter and Gamble Ltd
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Filing: 1986-02-21
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Granted: —
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Expires: 2006-02-21
Abstract
Abstract A granular detergent having a phosphorus content of less than 5% comprising: (a) about 5% to about 50% by weight of a water-insoluble aluminosilicate ion-exchange material and (b) about 0.1% to about 20% of a polycarboxylate polymer comprising: (i) about 5% to 70% of a C 3 -C 1O monoolefinic monocarboxylic acid, (ii) about 5% to 70% of a C 4 -C 6 monoolefinic dicarboxylic acid, and (iii) about 1% to 80% of a nonionic spacer selected from esters of (i) and (ii), C 2-6 monoolefinic alcohols, and esters of C 2-6 monoolefinic alcohols. The compositions display excellent bleach stability, fabric care and detergency performance at low or zero phosphate levels.
Inventors
- 👤 Nigel John Kermode
- 👤 Charles David Bragg
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-25 08:43
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/16; C11D3/37; C11D3/3746; C11D3/3757; C11D3/3761; C11D3/02; C11D3/12; C11D3/124; C11D3/1246; C11D3/128; C11D3/20; C11D3/2075
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
138 words
A granular detergent composition having a phosphorus content of less than 5% characterized by: (a) from about 5% to about 50% by weight of a water-insoluble aluminosilicate cation exchange material, and (b) from about 0.1% to about 20% by weight of a polycarboxylate polymer comprising on a monomer weight basis (i) from about 5% to about 70% of a C 3 -C 10 monoolefinic monocarboxylic acid, (ii) from about 5% to about 70% of a C 4 -C 6 monoolefinic dicarboxylic acid, and (iii) from about 1% to about 80% of nonionic spacer which is an ester selected from C 1 -C 6 alkyl and hydroxyalkyl esters of C 3 -C 10 monoolefinic monocarboxylic acids, C4-C 6 monoolefinic dicarboxylic acids and C 2 -C 6 monoolefinic alcohols, or an alcohol selected from C 2 -C 6 monoolefinic alcohols.
Claim 2
Dependent Claim
138 words
A granular detergent composition having a phosphorus content of less than 5% characterized by: (a) from about 5% to about 50% by weight of a water-insoluble aluminosilicate cation exchange material, and (b) from about 0.1% to about 20% by weight of a polycarboxylate polymer comprising on a monomer weight basis (i) from about 5% to about 70% of a C 3 -C 10 monoolefinic monocarboxylic acid, (ii) from about 5% to about 70% of a C 4 -C 6 monoolefinic dicarboxylic acid, and (iii) from about 1% to about 80% of nonionic spacer which is an ester selected from C 1 -C 6 alkyl and hydroxyalkyl esters of C 3 -C 10 monoolefinic monocarboxylic acids, C4-C 6 monoolefinic dicarboxylic acids and C 2 -C 6 monoolefinic alcohols, or an alcohol selected from C 2 -C 6 monoolefinic alcohols.
Claim 3
Dependent Claim
95 words
A composition according to Claim 1 wherein the polymer comprises on a monomer weight basis (i) from about 10% to about 45%, preferably from about 20% to about 40%, of monoolefinic monocarboxylic acid, (ii) from about 10% to about 45%, preferably from about 20% to about 40%, of monoolefinic dicarboxylic acid, and (iii) from about 10% to about 50%, preferably from about 20% to about 45%, of nonionic spacer selected from C l -C 6 alkyl and hydroxyalkyl esters of C 3 -C 10 monoolefinic monocarboxylic acids and C 4 -C 6 monoolefinic dicarboxylic acids.
Claim 4
Dependent Claim
35 words
A composition according to Claim 2 wherein the nonionic spacer is selected from C 2 -C 6 hydroxyalkyl esters of C 3 -C 10 monoolefinic monocarboxylic acids and C 4 -C 6 monoolefinic dicarboxylic acids.
Claim 5
Dependent Claim
48 words
A composition according to any of Claims 1 to 3 wherein the monocarboxylic acid is selected from acrylic acid, methacrylic acid and mixtures thereof, the dicarboxylic acid is selected from maleic acid, itaconic acid and mixtures thereof and the nonionic spacer is selected from hydroxyprcpyl(meth)acrylate, hydroxyethyl(meth)acrylate and butanediolmono(meth)acrylate.
Claim 6
Dependent Claim
84 words
A composition according to Claim 1 wherein the polymer comprises on a monomer weight basis: (i) from about 20% to about 60%, preferably from about 30% to about 50% of monoolefinic monocarboxylic acid, (ii) from about 20% to about 60%, preferably from about 30% to about 50% of monoolefinic dicarboxylic acid, and (iii) from about 1% to about 40%, preferably from about 2% to about 25% of nonionic spacer selected from C2-C6 monoolefinic alcohols and C 1 -C 6 alkyl and hydroxyalkyl esters thereof.
Claim 7
Dependent Claim
43 words
A composition according to Claim 5 wherein the monocarboxylic acid is selected from acrylic acid, methacrylic acid and mixtures thereof, the dicarboxylic acid is selected from maleic acid, itaconic acid and mixtures thereof and the nonionic spacer is vinyl acetate or vinyl alcohol.
Claim 8
Dependent Claim
50 words
A composition according to any of Claims 1 to 6 comprising from about 6% to about 25%, preferably from about 7% to about 18% by weight of the water-insoluble aluminosilicate ion exchange material and from about 0.5% to 10%, preferably from about 1% to about 5% of the polycarboxylate polymer.
Claim 9
Dependent Claim
36 words
A composition, according to any of Claims 1 to 7 comprising from about 2% to about 18%, preferably from about 5% to about 16%, more preferably from about 8% to about 14% of a phosphate builder.
Claim 10
Dependent Claim
23 words
A composition according to any of Claims 1 to 8 additionally comprising from about 1% to about 10% of an alkali metal silicate.
Claim 11
Dependent Claim
45 words
A composition according to any of Claims 1 to 9 additionally comprising from about 5% to about 35% of inorganic or organic peroxy bleaching agent, from 0% to 10%, preferably from 0.5% to 5% of organic peroxyacid bleach precursor, and a heavy metal scavenging agent.
Claim 12
Dependent Claim
55 words
A composition according to any of Claims 1 to 10 additionally comprising from 0.1% to 5% of a homo or bi-polycarboxylate polymer comprising on a monomer weight basis from about 25% to 100%, preferably from about 50% to 100% of a C 3 -C 10 monoolefinic monocarboxylic acid and/or a C4-C 6 monoolefinic dicarboxylic acid.
References Cited (Backward Citations)
No citation records indexed.
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