US4196095A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dry blending using magnesium stearate
Assignee: Church and Dwight Co Inc
•
Filing: 1978-07-11
•
Granted: 1980-04-01
•
Expires: 1998-07-11
Abstract
Abstract Magnesium stearate is added to dry blended detergent or detergent additive compositions in order to disperse the compositions in wash water and prevent the formation of large insoluble lumps when the formulation is used in cold washing water, generally below 75° F. The formulations also include a major proportion of one or more unhydrated or partially hydrated hydratable detergent builder salts, at least half of which is sodium carbonate, together with up to 30% by weight of a synthetic detergent active compound or mixture of such compounds.
Inventors
- 👤 Francis R. Cala
- 👤 Anthony E. Winston
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 20:26
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/16; C11D3/20; C11D3/2075; C11D3/2079; C11D3/02; C11D3/04; C11D3/10
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
95 words
In a dry blended carbonate-based detergent or detergent additive composition containing, in weight percent of the composition, from about 30 to 90% by weight of an unhydrated or partially hydrated hydratable detergent builder salt, at least one third of said composition being sodium carbonate, from about 5 to about 10% by weight of sodium silicate, and from 5 to about 30% by weight of a synthetic anionic, nonionic, amphoteric or zwitterionic detergent active compound, the improvement comprising including in said composition a dispersing amount of from 0.1 to about 2% by weight of magnesium stearate.
Claim 2
Dependent Claim
95 words
In a dry blended carbonate-based detergent or detergent additive composition containing, in weight percent of the composition, from about 30 to 90% by weight of an unhydrated or partially hydrated hydratable detergent builder salt, at least one third of said composition being sodium carbonate, from about 5 to about 10% by weight of sodium silicate, and from 5 to about 30% by weight of a synthetic anionic, nonionic, amphoteric or zwitterionic detergent active compound, the improvement comprising including in said composition a dispersing amount of from 0.1 to about 2% by weight of magnesium stearate.
Claim 3
Dependent Claim
86 words
In a dry blended, carbonate-based detergent composition containing in percent by weight of the composition, from about 30 to about 90% by weight of an unhydrated or partially hydrated hydratable detergent builder salt, at least half of said builder salt being sodium carbonate, and from 5 to about 30% by weight of a synthetic anionic or nonionic detergent active compound or mixtures thereof, the improvement comprising including a dispersing amount of magnesium stearate in said composition in the range of from about 0.1 to about 10%.
Claim 4
Dependent Claim
86 words
In a dry blended, carbonate-based detergent composition containing in percent by weight of the composition, from about 30 to about 90% by weight of an unhydrated or partially hydrated hydratable detergent builder salt, at least half of said builder salt being sodium carbonate, and from 5 to about 30% by weight of a synthetic anionic or nonionic detergent active compound or mixtures thereof, the improvement comprising including a dispersing amount of magnesium stearate in said composition in the range of from about 0.1 to about 10%.
Claim 5
Dependent Claim
84 words
A dry blended, carbonate-based detergent said composition containing, in percent by weight of the composition, from about 30 to about 90% by weight of an unhydrated or partially hydrated hydratable detergent builder salt, at least half of said builder salt being sodium carbonate, from 5 to about 15% by weight of a synthetic anionic or nonionic detergent active compound or mixtures thereof, and a dispersing, lump preventing amount of magnesium stearate in said composition in the range of from about 0.1 to about 10%.
Claim 6
Dependent Claim
84 words
A dry blended, carbonate-based detergent said composition containing, in percent by weight of the composition, from about 30 to about 90% by weight of an unhydrated or partially hydrated hydratable detergent builder salt, at least half of said builder salt being sodium carbonate, from 5 to about 15% by weight of a synthetic anionic or nonionic detergent active compound or mixtures thereof, and a dispersing, lump preventing amount of magnesium stearate in said composition in the range of from about 0.1 to about 10%.
References Cited (Backward Citations)
US2589330A
Cited
US2069710A
Cited
US2288409A
Cited
US2288410A
Cited
US2539012A
Cited
US2932556A
Cited
US3179588A
Cited
US3925226A
Cited
US3954649A
Cited
US4016041A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-04-01 | 1983-10-01 | 1984-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-04-01 | 1987-10-01 | 1988-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-04-01 | 1991-10-01 | 1992-04-01 | $7700.00 | Window Closed / Lapsed |