US4352678A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thickened abrasive bleaching compositions
Assignee: Lever Brothers Co
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Filing: 1979-09-24
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Granted: 1982-10-05
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Expires: 1999-09-24
Abstract
Abstract A pourable scouring cleanser composition contains: (1) an anionic surfactant preferably in an amount of 0.1 to 0.5 moles/kg; (2) a water-soluble polar nonionic/zwitterionic surfactant in the form of an amine oxide or a betaine; (3) an electrolyte such as sodium chloride or sodium carbonate; (4) a chlorine-releasing bleaching agent, preferably sodium hypochlorite solution; (5) a suspended particulate abrasive, preferably calcite.
Inventors
- 👤 Robert A. Jones
- 👤 David A. Reed
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 06:53
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/02; C11D3/04; C11D3/046; C11D1/00; C11D1/66; C11D1/83; C11D1/88; C11D1/94; C11D17/00; C11D17/0008; C11D17/0013; C11D3/12; C11D3/1233; C11D3/14; C11D3/395; C11D3/3956; C11D1/02; C11D1/12; C11D1/14; C11D1/143; C11D1/146; C11D1/22; C11D1/75; C11D1/90
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
150 words
A pourable aqueous scouring cleanser composition free from a three dimensional network of entanged filaments, said composition comprising: (i) in a liquid portion, (a) from 0.02 to 10% by weight based on the total composition of sodium hypochlorite as a chlorine-releasing bleaching agent; and (b) a suspending combination of from 0.1 to 0.5 moles/kg, based on the weight of the liquid portion of an anionic surfactant and a water soluble polar nonionic/zwitterionic surfactant in the form of an amine oxide and an effective amount of electrolyte in aqueous solution to form said suspending combination, said suspending combination being resistant to oxidative chlorination by said chlorine-releasing bleaching agent; and (ii) from 0.1 to 75% by weight of a particulate abrasive suspended in said suspending combination, said liquid portion and particulate abrasive when combined providing said composition in a form from which there is absent any three dimensional network of entangled filaments.
Claim 2
Dependent Claim
150 words
A pourable aqueous scouring cleanser composition free from a three dimensional network of entanged filaments, said composition comprising: (i) in a liquid portion, (a) from 0.02 to 10% by weight based on the total composition of sodium hypochlorite as a chlorine-releasing bleaching agent; and (b) a suspending combination of from 0.1 to 0.5 moles/kg, based on the weight of the liquid portion of an anionic surfactant and a water soluble polar nonionic/zwitterionic surfactant in the form of an amine oxide and an effective amount of electrolyte in aqueous solution to form said suspending combination, said suspending combination being resistant to oxidative chlorination by said chlorine-releasing bleaching agent; and (ii) from 0.1 to 75% by weight of a particulate abrasive suspended in said suspending combination, said liquid portion and particulate abrasive when combined providing said composition in a form from which there is absent any three dimensional network of entangled filaments.
Claim 3
Dependent Claim
17 words
A composition according to claim 1, wherein the anionic surfactant comprises a primary or secondary alkyl sulphate.
Claim 4
Dependent Claim
15 words
A composition according to claim 1, wherein the anionic surfactant comprises an alkyl benzene sulphonate.
Claim 5
Dependent Claim
15 words
A composition according to claim 1, wherein the anionic surfactant comprises a secondary alkyl sulphonate.
Claim 6
Dependent Claim
15 words
A composition according to claim 1, wherein the polar nonionic/zwitterionic surfactant comprises an amine oxide.
Claim 7
Dependent Claim
15 words
A composition according to claim 1, wherein the electrolyte comprises sodium chloride or sodium carbonate.
Claim 8
Dependent Claim
13 words
A composition according to claim 1, wherein the suspended particulate abrasive comprises calcite.
Claim 9
Dependent Claim
22 words
A composition according to claim 1, wherein the total surfactant concentration is 0.1 to 0.5 moles/kg based on the composition less abrasive.
Claim 10
Dependent Claim
22 words
A composition according to claim 1, wherein the total surfactant concentration is 0.2 to 0.35 moles/kg based on the composition less abrasive.
Claim 11
Dependent Claim
20 words
A composition according to claim 1, wherein the molar ratio anionic surfactant:water-soluble polar nonionic/zwitterionic surfactant is from 60:40 to 20:80.
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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) | 1985-10-04 | 1986-04-05 | 1986-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-10-04 | 1990-04-05 | 1990-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-10-04 | 1994-04-05 | 1994-10-05 | $7700.00 | Window Closed / Lapsed |