EP0264975A1
Expired / Lapsed
EP
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Thickened aqueous dishwashing compositions
Assignee: Procter and Gamble Co
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Filing: 1987-08-06
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Granted: —
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Expires: 2007-08-06
Abstract
Abstract Thickened aqueous dishwashing compositions comprising hypochlorite bleach also contain high levels of SiO₂ and, preferably, polycarboxylate polymers to inhibit corrosion.
Inventors
- 👤 Albert James Fuchs
- 👤 Brian Joseph Roselle
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-05 09:28
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/395; C11D3/3956; C11D3/16; C11D3/37; C11D3/3746; C11D3/3757; C11D3/3765
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
72 words
An aqueous automatic dishwasher composition comprising: (1) from 0% to about 5% of bleach-stable detergent surfactant; (2) from about 5% to about 40% of detergency builder; (3) hypochlorite bleach to yield available chlorine in an amount of from about 0.3% to about 2.5%; (4) from about 0.1% to about 10% of thickening agent; (5) alkali metal silicate to provide from at least about 7% SiO₂; and (6) the balance an aqueous liquid.
Claim 2
Dependent Claim
72 words
An aqueous automatic dishwasher composition comprising: (1) from 0% to about 5% of bleach-stable detergent surfactant; (2) from about 5% to about 40% of detergency builder; (3) hypochlorite bleach to yield available chlorine in an amount of from about 0.3% to about 2.5%; (4) from about 0.1% to about 10% of thickening agent; (5) alkali metal silicate to provide from at least about 7% SiO₂; and (6) the balance an aqueous liquid.
Claim 3
Dependent Claim
18 words
The composition of Claim 1 wherein the alkali metal silicate provides from about 9% to about 12.5% SiO₂.
Claim 4
Dependent Claim
21 words
The composition of Claim 2 wherein the hypochlorite bleach yields available chlorine in an amount from about 0.5% to about 1.5%.
Claim 5
Dependent Claim
35 words
The composition of Claim 3 additionally comprising high molecular weight polycarboxylate polymer in an amount of from about 0.1% to about 3%, said polymer having a molecular weight of from about 1,000 to about 1,000,000.
Claim 6
Dependent Claim
21 words
The composition of Claim 3 wherein the hypochlorite bleach yields available chlorine in an amount from about 0.7% to about 1.1%.
Claim 7
Dependent Claim
28 words
The composition of Claim 1 wherein the thickening agent is a clay, the builder is sodium tripolyphosphate and there is from about 0.1% to about 2.5% detergent surfactant.
Claim 8
Dependent Claim
36 words
The composition of Claim 6 additionally comprising a high molecular weight polycarboxylate polymer in an amount of from about 0.5% to about 1.5%, said polymer having a molecule weight of from about 5,000 to about 100,000.
Claim 9
Dependent Claim
28 words
The composition of Claim 1 containing from about 0.5% to about 5% of clay thickening agent, sodium tripolyphosphate builder, and from about 0.1% to about 2.5% detergent surfactant.
References Cited (Backward Citations)
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