US4396525A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Phosphate free liquid scouring composition
Assignee: Lever Brothers Co
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Filing: 1981-09-14
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Granted: 1983-08-02
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Expires: 2001-09-14
Abstract
Abstract This invention discloses a liquid scouring composition comprising in percent by weight of the composition (a) about 0.5% to about 5% anionic surfactant; (b) about 0.5% to about 5% amphoteric surfactant; (c) about 5% to about 65% abrasive; (d) about 0.1% to about 8% electrolyte; (e) 0% to about 5% other ingredients; and (f) water to make 100%.
Inventors
- 👤 Fred K. Rubin
- 👤 David V. Blarcom
- 👤 Daniel J. Fox
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:23
CPC Classifications
C; C11; C11D; C11D17/00; C11D17/0008; C11D17/0013; C11D1/00; C11D1/88; C11D1/94; C11D1/02; C11D1/04; C11D1/12; C11D1/14; C11D1/143; C11D1/22; C11D1/28
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
58 words
A liquid scouring composition consisting essentially of in percent by weight of the composition: (a) about 0.5% to about 5% anionic surfactant; (b) about 0.5% to about 5% alkyl-amido betaine surfactant; (c) about 5% to about 65% abrasive; (d) about 0.1% to about 8% electrolyte; (e) 0% to about 5% other ingredients; and (f) water to make 100%.
Claim 2
Dependent Claim
58 words
A liquid scouring composition consisting essentially of in percent by weight of the composition: (a) about 0.5% to about 5% anionic surfactant; (b) about 0.5% to about 5% alkyl-amido betaine surfactant; (c) about 5% to about 65% abrasive; (d) about 0.1% to about 8% electrolyte; (e) 0% to about 5% other ingredients; and (f) water to make 100%.
Claim 3
Dependent Claim
46 words
A scouring composition according to claim 1 wherein said anionic surfactant is selected from the group consisting of soaps, alkyl aryl sulfonates having 8 to 18 carbon atoms in the alkyl group in a straight or branched chain, alkyl sulfonates, acylamino alkane sulfonates and mixtures thereof.
Claim 4
Dependent Claim
15 words
A scouring composition according to claim 1 wherein said alkyl-amido betaine is a coco-amido betaine.
Claim 5
Dependent Claim
16 words
A scouring composition according to claim 3 wherein said coco-amido betaine is coco-amido propyl dimethyl betaine.
Claim 6
Dependent Claim
32 words
A scouring composition according to claim 1 wherein said abrasive is selected from the group consisting of calcite, dolomite, feldspar, silica flour, quartz, pumice, polishing clays, perlite, diatomite, alumina and mixtures thereof.
Claim 7
Dependent Claim
39 words
A scouring composition according to claim 1 wherein said electrolyte is selected from the group consisting of alkali metal sulfates, carbonates, bicarbonates, halides, silicates, citrates, nitrates, alkaline earth salts of ethylene diamine tetraacetic acid, carboxymethyloxysuccinate, carboxymethyloxytartronate and mixtures thereof.
Claim 8
Dependent Claim
31 words
A scouring composition according to claim 1 wherein said other ingredient is selected from the group consisting of bleaching agents, perfumes, coloring agents, ammonia, germicides, colloid forming agents, and mixtures thereof.
References Cited (Backward Citations)
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US4122043A
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US4051056A
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US3950417A
Cited
US4116851A
Cited
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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) | 1986-08-01 | 1987-01-31 | 1987-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-08-01 | 1991-01-31 | 1991-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-08-01 | 1995-01-31 | 1995-08-02 | $7700.00 | Window Closed / Lapsed |