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US4798679A Expired / Lapsed US ⏱️ 0.0 years remaining

Controlled sudsing stable isotropic liquid detergent compositions

Assignee: Procter and Gamble Co
•
Filing: 1987-05-11
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Granted: 1989-01-17
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Expires: 2007-05-11
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Abstract

Abstract Stable isotropic liquid detergent compositions containing a particular silicone suds controlling agent, a sudsing detergent surfactant and water. Such compositions can be prepared if a suitable dispersing agent is premixed with the suds controlling agent prior to incorporation in the liquid detergent composition.

Inventors

  • 👤 Artemio Castro
  • 👤 Michael S. Showell

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-04 04:46
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/16; C11D3/37; C11D3/3703; C11D3/373; C11D3/3734; C11D3/0005; C11D3/0026; C11D3/02; C11D3/12; C11D3/124

Claims Analysis

Total Claims: 15
Claim 1
Independent Claim 67 words
A suds controlling agent composition consisting essentially of: (a) suds controlling agent consisting essentially of: (i) polydimethylsiloxane fluid having a viscosity at 25° C. of from about 20 cs to about 1500 cs and (ii) from about 5 to about 70 parts per 100 parts of (i) of non-crystalline silica and (b) from about 50% to about 99.8% by weight of the composition of cyclomethicone dispersing agent.
Claim 2
Dependent Claim 67 words
A suds controlling agent composition consisting essentially of: (a) suds controlling agent consisting essentially of: (i) polydimethylsiloxane fluid having a viscosity at 25° C. of from about 20 cs to about 1500 cs and (ii) from about 5 to about 70 parts per 100 parts of (i) of non-crystalline silica and (b) from about 50% to about 99.8% by weight of the composition of cyclomethicone dispersing agent.
Claim 3
Dependent Claim 49 words
The composition of claim 1 wherein said non-crystalline silica is selected from the group consisting of (a) siloxane resin composed of first (CH 3 ) 3 SiO 1/2 units and second SiO 2 units in the ratio of first to second units of from about 0.6:1 to about 1.2:1.
Claim 4
Dependent Claim 175 words
A stable isotropic liquid detergent composition having a controlled suds pattern, comprising: (a) a suds suppressing amount of a suds controlling agent consisting essentially of: (i) polydimethylsiloxane fluid having a viscosity of from about 20 cs. to about 1500 cs. at 25° C.; (ii) from about 5 to about 70 parts per 100 parts by weight of (i) of non-crystalline silica selected from the group consisting of siloxane resin composed of (CH 3 ) 3 SiO 1/2 units and SiO 2 units in a ratio of (CH 3 ) 3 SiO 1/2 units to SiO 2 units of from about 0.6:1 to about 1.2:1; solid silica gel; and mixtures thereof; (b) from about 1% to about 60% by weight of a sudsing detergent surfactant selected from the group consisting of anionic, nonionic, zwitterionic, ampholytic, and cationic surfactants and mixtures thereof; and (c) from 0% to about 95% by weight of water, and (d) cyclomethicone dispersing agent which is premixed with the suds controlling agent prior to adding the suds controlling agent to the detergent composition.
Claim 5
Dependent Claim 175 words
A stable isotropic liquid detergent composition having a controlled suds pattern, comprising: (a) a suds suppressing amount of a suds controlling agent consisting essentially of: (i) polydimethylsiloxane fluid having a viscosity of from about 20 cs. to about 1500 cs. at 25° C.; (ii) from about 5 to about 70 parts per 100 parts by weight of (i) of non-crystalline silica selected from the group consisting of siloxane resin composed of (CH 3 ) 3 SiO 1/2 units and SiO 2 units in a ratio of (CH 3 ) 3 SiO 1/2 units to SiO 2 units of from about 0.6:1 to about 1.2:1; solid silica gel; and mixtures thereof; (b) from about 1% to about 60% by weight of a sudsing detergent surfactant selected from the group consisting of anionic, nonionic, zwitterionic, ampholytic, and cationic surfactants and mixtures thereof; and (c) from 0% to about 95% by weight of water, and (d) cyclomethicone dispersing agent which is premixed with the suds controlling agent prior to adding the suds controlling agent to the detergent composition.
Claim 6
Dependent Claim 24 words
The composition of claim 3 wherein the silicone suds controlling agent has an average droplet diameter of from about 1 to about 50 microns.
Claim 7
Dependent Claim 18 words
The composition of claim 4 wherein the average droplet diameter is from about 5 to about 30 microns.
Claim 8
Dependent Claim 46 words
A composition according to claim 5 wherein the detergent surfactant comprises a water-soluble salt of an organic sulfuric reaction product having in its molecular structure an alkyl group containing from about 8 to about 22 carbon atoms and a sulfonic acid or sulfuric acid ester group.
Claim 9
Dependent Claim 102 words
A composition according to claim 5 wherein the detergent surfactant is selected from the group consisting of sodium linear C 10 -C 13 alkylbenzene sulfonate; sodium C 10 -C 18 alkyl sulfate; the sodium salt of a sulfated condensation product of a C 10 -C 18 alcohol with from about 1 to about 3 moles of ethylene oxide; the condensation product of a C 10 -C 18 fatty alcohol with from about 4 to about 10 moles of ethylene oxide; the water-soluble sodium and potassium salts of higher fatty acids containing from about 10 to about 18 carbon atoms; and mixtures thereof.
Claim 10
Dependent Claim 21 words
A composition according to claim 7 further comprising from about 1% to about 30% by weight of a water-soluble detergency builder.
Claim 11
Dependent Claim 102 words
A composition according to claim 3 wherein the detergent surfactant is selected from the group consisting of sodium linear C 10 -C 13 alkylbenzene sulfonate; sodium C 10 -C 18 alkyl sulfate; the sodium salt of a sulfated condensation product of a C 10 -C 18 alcohol with from about 1 to about 3 moles of ethylene oxide; the condensation product of a C 10 -C 18 fatty alcohol with from about 4 to about 10 moles of ethylene oxide; the water-soluble sodium and potassium salts of higher fatty acids containing from about 10 to about 18 carbon atoms; and mixtures thereof.
Claim 12
Dependent Claim 21 words
A composition according to claim 9 further comprising from about 5% to about 30% by weight of a water-soluble detergency builder.
Claim 13
Dependent Claim 25 words
A composition according to claim 10 wherein the silicone suds controlling agent has an average droplet diameter of from about 5 to about 30 microns.
Claim 14
Dependent Claim 30 words
A composition according to claim 3 wherein the water content is from about 15% to about 70% and the ionic strength is greater than about 0.9 moles/100 gms of product.
Claim 15
Dependent Claim 30 words
A composition according to claim 12 wherein the water content is from about 20% to about 40% and the ionic strength is greater than about 0.95 moles/100 gms of product.

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) 1992-01-17 1992-07-18 1993-01-17 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1996-01-17 1996-07-18 1997-01-17 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2000-01-17 2000-07-18 2001-01-17 $7700.00 Window Closed / Lapsed

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