US4719030A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transparent or translucent toilet soap bars containing water-insoluble silica or silicates
Assignee: Procter and Gamble Co
•
Filing: 1986-03-05
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Granted: 1988-01-12
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Expires: 2006-03-05
Abstract
Abstract Detergent compositions in bar form comprising a water-insoluble, synthetic, amorphous, particulate silica or silicate having a specific surface area of at least 25 square meters per gram. The compositions are preferably milled toilet bars and demonstrate improved lathering, smear, cleansing performance and skin feel characteristics.
Inventors
- 👤 Michael K. Williams
- 👤 Geoffrey G. Dawson
- 👤 Ralph F. Medcalf, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 17:53
CPC Classifications
C; C11; C11D; C11D17/00; C11D17/06; C11D3/00; C11D3/02; C11D3/12; C11D3/124; C11D10/00; C11D10/04; C11D10/042; C11D17/0095; C11D9/00; C11D9/04; C11D9/06; C11D9/18; C11D1/00; C11D1/02
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
60 words
A translucent or transparent milled toilet bar composition comprising from about 45% to about 95% alkali metal soap and from about 0.1% to about 3.5% of water-insoluble synthetic amorphous particulate silica or silicate having a specific surface area of at least about 25 square meters per gram, at least about 50% of the said soap being in the beta phase.
Claim 2
Dependent Claim
60 words
A translucent or transparent milled toilet bar composition comprising from about 45% to about 95% alkali metal soap and from about 0.1% to about 3.5% of water-insoluble synthetic amorphous particulate silica or silicate having a specific surface area of at least about 25 square meters per gram, at least about 50% of the said soap being in the beta phase.
Claim 3
Dependent Claim
20 words
A composition according to claim 1, wherein at least about 70% by weight of the soap is in the beta-phase.
Claim 4
Dependent Claim
48 words
A composition according to claim 1 characterized by soap of a fat stock no more than about 40% of which are saturated fatty acids of less than 16 carbon atoms and at least about 20% of which are saturated fatty acids of from 16 to 22 carbon atoms.
Claim 5
Dependent Claim
17 words
A composition according to claim 3 having a water content of from 15% to 26% by weight.
Claim 6
Dependent Claim
47 words
A composition according to claim 1 wherein the silica or silicate comprises up to about 40% by weight of aluminium or zinc (oxide basis), up to about 25% by weight of alkali metal (oxide basis), and up to about 35% by weight magnesium or calcium (oxide basis).
Claim 7
Dependent Claim
13 words
A composition according to claim 1 wherein the silica or silicate is wet-agglomerated.
Claim 8
Dependent Claim
41 words
A composition according to claim 1 wherein the silica or silicate is selected from the group consisting of precipitated silica, silica gel, silica xerogel, silica aerogel, mixed silica/alumina gels, precipitated sodium aluminosilicate, sodium aluminosilicate gels, precipitated calcium silicate and mixtures thereof.
Claim 9
Dependent Claim
33 words
A composition according to any of claims 1, 2, 3, 4, 5, 6 or 7 wherein the silica or silicate has a refractive index in the range from about 1.4 to about 1.6.
Claim 10
Dependent Claim
16 words
A composition according to claim 8 comprising from about 0.5% to about 2.5% silica or silicate.
Claim 11
Dependent Claim
52 words
A composition according to claim 8 wherein the silica or silicate has a specific surface area in the range from about 100 to about 1000 square meters/gram, a pore volume of from about 0.4 to about 4.4 ml/g and an average secondary particle size of from about 1 to about 40 micrometers.
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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) | 1991-01-11 | 1991-07-13 | 1992-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-01-11 | 1995-07-13 | 1996-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-01-11 | 1999-07-13 | 2000-01-12 | $7700.00 | Window Closed / Lapsed |