EP0240481A1
Expired / Lapsed
EP
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Stable liquid diperoxyacid bleach
Assignee: Procter and Gamble Co
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Filing: 1987-03-31
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Granted: —
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Expires: 2007-03-31
Abstract
Abstract Stable liquid bleach compositions containing diperoxyacid particles, C₁₁-C₁₃ linear alkylbenzene sulfonate surfactant, optional cumene sulfonate, magnesium sulfate, optional sodium or potassium sulfate, and water combined at certain carefully balanced levels and ratios. The compositions have a pH of from about 2 to about 4.5 and a viscosity of from about 50 to about 1000 cps at 20°C.
Inventors
- 👤 Stanton Lane Boyer
- 👤 James Michael Vander Meer
- 👤 Thomas Edward Cook
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-01 20:52
CPC Classifications
D; D06; D06M; D06M13/00; D06M13/10; C; C11; C11D; C11D3/00; C11D3/39; C11D3/3947; C11D3/3945; D06L; D06L4/00; D06L4/10
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
183 words
A stable liquid bleach composition comprising, by weight: (a) from about 10% to about 25% of water-insoluble diperoxyacid particles of the formula HOOOC(CH₂) n COOOH, wherein n is from about 7 to about 14, said particles having an average size of from about 0.5 to about 15 microns; (b) from about 2% to about 6%, on an acid basis, of a C₁₁-C₁₃ linear alkylbenzene sulfonate surfactant; (c) from about 0% to about 8%, on an acid basis, of cumene sulfonate; (d) from about 5% to about 15% of magnesium sulfate; (e) from 0% to about 7% sodium or potassium sulfate; and (f) from about 40% to about 78% water said composition containing from about 3% to about 14% of (b) and (c), from about 5% to about 16% of (d) and (e), and from about 12% to about 30% of (b), (c), (d) and (e); the weight ratio of (a) to (d) being less than about 3:1; and said composition having a pH of from about 2 to about 4.5 and a viscosity of from about 50 to about 1000 cps at 20°C.
Claim 2
Dependent Claim
183 words
A stable liquid bleach composition comprising, by weight: (a) from about 10% to about 25% of water-insoluble diperoxyacid particles of the formula HOOOC(CH₂) n COOOH, wherein n is from about 7 to about 14, said particles having an average size of from about 0.5 to about 15 microns; (b) from about 2% to about 6%, on an acid basis, of a C₁₁-C₁₃ linear alkylbenzene sulfonate surfactant; (c) from about 0% to about 8%, on an acid basis, of cumene sulfonate; (d) from about 5% to about 15% of magnesium sulfate; (e) from 0% to about 7% sodium or potassium sulfate; and (f) from about 40% to about 78% water said composition containing from about 3% to about 14% of (b) and (c), from about 5% to about 16% of (d) and (e), and from about 12% to about 30% of (b), (c), (d) and (e); the weight ratio of (a) to (d) being less than about 3:1; and said composition having a pH of from about 2 to about 4.5 and a viscosity of from about 50 to about 1000 cps at 20°C.
Claim 3
Dependent Claim
11 words
The composition of Claim 1 wherein the diperoxyacid is 1,12-diperoxydodecanedioic acid.
Claim 4
Dependent Claim
21 words
The composition of Claim 1 wherein the diperoxyacid particles have an average size of from about 0.5 to about 10 microns.
Claim 5
Dependent Claim
13 words
The composition of Claim 1 wherein (b) is a C₁₃ linear alkylbenzene sulfonate.
Claim 6
Dependent Claim
21 words
The composition of Claim 1 wherein the composition has a viscosity of from about 75 to about 500 cps at 20°C.
Claim 7
Dependent Claim
13 words
The composition of Claim 5 wherein (b) is a C₁₃ linear alkylbenzene sulfonate.
Claim 8
Dependent Claim
27 words
The composition of Claim 6 comprising from about 2% to about 4% of C₁₃ linear alkylbenzene sulfonate and from about 1% to about 6% of cumene sulfonate.
Claim 9
Dependent Claim
24 words
The composition of Claim 7 comprising from about 8% to about 12% of magnesium sulfate from about 2% to about 6% of sodium sulfate.
Claim 10
Dependent Claim
16 words
The composition of Claim 8 comprising from about 14% to about 20% of the 1,12-diperoxydodecanedioic acid.
Claim 11
Dependent Claim
18 words
The composition of Claim 9 having a viscosity of from about 100 to about 350 cps at 20°C.
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