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US4758377A Expired / Lapsed US ⏱️ 0.0 years remaining

Viscous phase stable liquid scouring cleansers containing solvent

Assignee: Procter and Gamble Co
•
Filing: 1987-04-24
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Granted: 1988-07-19
•
Expires: 2007-04-24
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Abstract

Abstract Improved phase stable liquid compositions, particularly for use as hard surface cleansers, comprise a mixture of sodium C12-C18 paraffin sulfonate (NaPS) and sodium salt of linear alkyl benzene sulfonate (LAS), terpenes, benzyl alcohol, acrylic acid polymeric thickeners, abrasives and viscosity enhancer compounds. The compositions are viscous, substantially phase stable and provide excellent cleaning of both greasy and particulate soils from hard surfaces without streaking or filming.

Inventors

  • 👤 Stephen H. Iding
  • 👤 Richard M. Neel

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 19:04
CPC Classifications
C; C11; C11D; C11D17/00; C11D17/0008; C11D17/0013; C11D1/00; C11D1/02; C11D1/37; C11D3/00; C11D3/16; C11D3/37; C11D3/3746; C11D3/3757; C11D3/3765; C11D3/43; C11D1/12; C11D1/14; C11D1/22

Claims Analysis

Total Claims: 12
Claim 1
Independent Claim 190 words
An improved phase stable liquid scouring cleanser composition consisting essentially of: (a) from about 1% to about 10% of a synthetic surfactant mixture of paraffin sulfonate (NaPS) and linear alkyl benzene sulfonate (LAS), said mixture of NaPS and LAS having a ratio of from 20:1 to 2:1; (b) from about 0.5% to about 5% of a mono- or sesquiterpene or mixtures thereof, the weight ratio of surfactant:terpene lying between 20:1 to 3:2; (c) from about 0.5 to about 3% of benzyl alcohol; (d) from about 0.03% to about 0.5% of a viscosity enhancing compound selected from the group consisting of citronellol, geraniol, dihydro mercinol, linalool, nerol, rhodinal, alphaterpineol, beta-citronellol, rhodinol, citronella nitrile, carvone, fenchone, menthol, isoborneol and mixtures thereof; (e) from about 1% to about 50% of a water-insoluble abrasive; and (f) from about 0.40% to about 1% of a high molecular weight acrylic acid polymeric thickener having a molecular weight range of about 0.5 million to about 1.5 million; and wherein the viscosity of said composition is from about 1800 to about 4000 cps at room temperature and wherein the pH of said composition is from 8 to 12.
Claim 2
Dependent Claim 190 words
An improved phase stable liquid scouring cleanser composition consisting essentially of: (a) from about 1% to about 10% of a synthetic surfactant mixture of paraffin sulfonate (NaPS) and linear alkyl benzene sulfonate (LAS), said mixture of NaPS and LAS having a ratio of from 20:1 to 2:1; (b) from about 0.5% to about 5% of a mono- or sesquiterpene or mixtures thereof, the weight ratio of surfactant:terpene lying between 20:1 to 3:2; (c) from about 0.5 to about 3% of benzyl alcohol; (d) from about 0.03% to about 0.5% of a viscosity enhancing compound selected from the group consisting of citronellol, geraniol, dihydro mercinol, linalool, nerol, rhodinal, alphaterpineol, beta-citronellol, rhodinol, citronella nitrile, carvone, fenchone, menthol, isoborneol and mixtures thereof; (e) from about 1% to about 50% of a water-insoluble abrasive; and (f) from about 0.40% to about 1% of a high molecular weight acrylic acid polymeric thickener having a molecular weight range of about 0.5 million to about 1.5 million; and wherein the viscosity of said composition is from about 1800 to about 4000 cps at room temperature and wherein the pH of said composition is from 8 to 12.
Claim 3
Dependent Claim 34 words
The composition of claim 1 wherein the ratio of said mixture of NaPS and LAS is from 10:1 to 2:1 and is present in said composition at a level of from 2% to 8%.
Claim 4
Dependent Claim 32 words
The composition of claim 1 wherein the ratio of said mixture of NaPS and LAS is from 7:1 to 4:1 and is present at a level of about 2.5% to about 5%.
Claim 5
Dependent Claim 45 words
The composition in accordance with claim 1 wherein the terpene is selected from d-limonene, dipentene, alpha-pinene and beta-pinene, and mixtures thereof, and is present at a concentration of 1% to 3% and wherein the weight ratio of surfactant mixture to terpene is 4:1 to 1.5:1.
Claim 6
Dependent Claim 19 words
The composition in accordance with claim 1 wherein said (d) is present at a concentration of 0.05 to 0.5%.
Claim 7
Dependent Claim 25 words
The composition in accordance with claim 1 wherein the weight ratio of terpene to benzyl alcohol is in the range of from 5:1 to 1:5.
Claim 8
Dependent Claim 33 words
The composition in accordance with claim 1 containing from 1% to 2% by weight of benzyl alcohol and wherein the ratio of terpene to benzyl alcohol is from about 2:1 to about 1:2.
Claim 9
Dependent Claim 35 words
A composition in accordance with claim 1 wherein (d) is selected from citronellol, dihydro mercinol, citronellal and citronella nitrile and mixtures thereof and is present at a level of 0.05% to 0.25% of said composition.
Claim 10
Dependent Claim 33 words
A composition in accordance with claim 1 containing from 5% to 40% of an abrasive having a particle size range of 5-150 microns, said abrasive having a Mohs hardness of 7 and below.
Claim 11
Dependent Claim 19 words
A composition in accordance with claim 9 wherein said abrasive is present at a level of 10% to 35%.
Claim 12
Dependent Claim 35 words
A composition in accordance with claim 1 containing from 0.45% to 0.75% of said acrylic acid polymeric thickener and wherein said viscosity is from 2000 to 3500 and wherein said pH is 10 to 11.5.

References Cited (Backward Citations)

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USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1991-07-19 1992-01-18 1992-07-19 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1995-07-19 1996-01-18 1996-07-19 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1999-07-19 2000-01-18 2000-07-19 $7700.00 Window Closed / Lapsed

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