Patent EP0219314A2 successfully refreshed from Google Patents.
EP0219314A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Granular detergent compositions having improved solubility
Assignee: Procter and Gamble Co
•
Filing: 1986-10-09
•
Granted: —
•
Expires: 2006-10-09
Abstract
Abstract Spray dried granules containing high levels of certain surfactants dissolve rapidly.
Inventors
- 👤 Brett Alan Evans
- 👤 George John Kaminsky
- 👤 Richard Hansen
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-05 23:02
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/02; C11D3/04; C11D3/08; C11D1/00; C11D1/02; C11D1/37; C11D11/00; C11D11/02; C11D1/12; C11D1/14; C11D1/22
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
115 words
A granular detergent composition comprising, by weight: (a) from 30% to 85% of a mixture of a C₁₂-C₁₃ alkylbenzene sulfonate surfactant and a C₁₂-C₁₆ alkyl sulfate surfactant in a weight ratio of sulfonate surfactant to sulfate surfactant of from 4:1 to 1:4; (b) an alkali metal silicate having a molar ratio of SiO₂ to alkali metal oxide of from 1.0 to 3.2; the weight ratio of (a) to (b) being from 1.5:1 to 6:1; (c) from 10% to 60% of a water-soluble sulfate; and (d) from 0% to 20% of a pyrophosphate or anhydrous Form 1 tripolyphosphate detergent builder material or mixtures thereof; said composition prepared by drying an aqueous slurry comprising the above components.
Claim 2
Dependent Claim
115 words
A granular detergent composition comprising, by weight: (a) from 30% to 85% of a mixture of a C₁₂-C₁₃ alkylbenzene sulfonate surfactant and a C₁₂-C₁₆ alkyl sulfate surfactant in a weight ratio of sulfonate surfactant to sulfate surfactant of from 4:1 to 1:4; (b) an alkali metal silicate having a molar ratio of SiO₂ to alkali metal oxide of from 1.0 to 3.2; the weight ratio of (a) to (b) being from 1.5:1 to 6:1; (c) from 10% to 60% of a water-soluble sulfate; and (d) from 0% to 20% of a pyrophosphate or anhydrous Form 1 tripolyphosphate detergent builder material or mixtures thereof; said composition prepared by drying an aqueous slurry comprising the above components.
Claim 3
Dependent Claim
22 words
A composition according to Claim 1 comprising from 35% to 60% preferably from 35% to 60% of the sulfonate and sulfate surfactants.
Claim 4
Dependent Claim
26 words
A composition according to either one of Claims 1 and 2 wherein the weight ratio of sulfonate surfactant to sulfate surfactant is from 2:1 to 1:2.
Claim 5
Dependent Claim
29 words
A composition according to any one of Claims 1-3 wherein the sulfonate surfactant is sodium C₁₂-C₁₃ linear alkylbenzene sulfonate and the sulfate surfactant is sodium C₁₄-C₁₅ linear alkyl sulfate.
Claim 6
Dependent Claim
22 words
A composition according to any one of Claims 1-4 wherein the weight ratio of (a) to (b) is from 2.0:1 to 4.0:1.
Claim 7
Dependent Claim
32 words
A composition according to any one of Claims 1-5 wherein the alkali metal silicate is sodium silicate having a molar ratio of SiO₂ to alkali metal oxide of from 1.6 to 2.4.
Claim 8
Dependent Claim
22 words
A composition according to any one of Claims 1-6 being substantially free of pyrophosphate or anhydrous Form 1 tripolyphosphate detergent builder material.
Claim 9
Dependent Claim
29 words
A composition according to any one of claims 1-7 further comprising from 1% to 45% by weight of detergent builder, other than pyrophosphate or anhydrous Form 1 tripolyphosphate builders.
Claim 10
Dependent Claim
17 words
A composition according to claim 8 when dependent on claim 7 wherein the builder comprises sodium citrate.
Claim 11
Dependent Claim
89 words
A laminated laundry product comprising two plies of water insoluble tissue in which: (1) at least one ply is water permeable; (2) at least one ply defines more than one cup, each cup being surrounded by a rim of that ply; (3) the second ply is sealed to the first ply at least at the rims of the cups to physically separate the cups so that the contents of the cups remain in place; and more than one cup contains a composition according to any one of Claims 1-9.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.