US4537604A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Abrasive agglomerates for use in scouring cleaning compositions
Assignee: Lever Brothers Co
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Filing: 1983-08-31
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Granted: 1985-08-27
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Expires: 2003-08-31
Abstract
Abstract Scouring cleaning compositions are disclosed in which the abrasive agent consists of agglomerates of finely divided abrasive material and an organic binder for agglomerating such material. Compositions of the invention have good soil-removing properties and improved non-scratching behavior. They are useful as powdered or liquid household products as well as skin-cleaning products.
Inventors
- 👤 Peter L. Dawson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:04
CPC Classifications
A; A61; A61K; A61K8/00; A61K8/02; A61K8/0241; A61K8/0275; A61K8/18; A61K8/19; A61K8/26; A61Q; A61Q19/00; A61Q19/10; C; C09; C09K; C09K3/00; C09K3/14; C09K3/1409; C09K3/1454; C11; C11D; C11D17/00; C11D17/0008; C11D17/0013; C11D3/00; C11D3/02; C11D3/12; C11D3/1233; C11D3/14; A61K2800/00; A61K2800/20; A61K2800/28; A61K2800/40; A61K2800/41; A61K2800/412
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
79 words
Scouring cleaning compositions comprising from 5 to 99% by weight of an abrasive agent consisting of agglomerates of finely divided abrasive material having no particles of initial size above 20 micrometers, at least 80% by weight thereof being of initial size below 10 micrometers, and an organic binder for agglomerating such material, from 1 to 20% by weight of the binder being an oil-soluble anionic or cationic polar compound; the flexural strength of the agglomerates being above 1.5 kilograms.
Claim 2
Dependent Claim
79 words
Scouring cleaning compositions comprising from 5 to 99% by weight of an abrasive agent consisting of agglomerates of finely divided abrasive material having no particles of initial size above 20 micrometers, at least 80% by weight thereof being of initial size below 10 micrometers, and an organic binder for agglomerating such material, from 1 to 20% by weight of the binder being an oil-soluble anionic or cationic polar compound; the flexural strength of the agglomerates being above 1.5 kilograms.
Claim 3
Dependent Claim
19 words
Compositions according to claim 1, in which the abrasive material comprises no particles of initial size above 10 micrometers.
Claim 4
Dependent Claim
26 words
Compositions according to claim 1, in which 25 to 80% by weight of the particles of the abrasive material have initial sizes of below 2 micrometers.
Claim 5
Dependent Claim
12 words
Compositions according to claim 1, in which the abrasive material is calcite.
Claim 6
Dependent Claim
20 words
Compositions according to claim 1, in which the abrasive agglomerates have a flexural strength of between 3 and 6 kg.
Claim 7
Dependent Claim
20 words
Compositions according to claim 5, in which the abrasive agglomerates have a flexural strength of between 4 and 5.5 kg.
Claim 8
Dependent Claim
22 words
Compositions according to claim 1, in which the abrasive agglomerates have a micro-hardness on the Vickers scale of between 3 and 10.
Claim 9
Dependent Claim
22 words
Compositions according to claim 7, in which the abrasive agglomerates have a micro-hardness on the Vickers scale of between 6 and 8.
Claim 10
Dependent Claim
13 words
Compositions according to claim 1, in which the organic binder comprises a wax.
Claim 11
Dependent Claim
28 words
Compositions according to claim 9 in which the wax is a straight or branched chain paraffin wax with a melting point of between 40° C. and 90° C.
Claim 12
Dependent Claim
17 words
Compositions according to claim 9, in which the wax has an acid number up to about 20.
Claim 13
Dependent Claim
21 words
Compositions according to claim 1, in which the organic binder comprises from 1 to 20% by weight of the polar compound.
Claim 14
Dependent Claim
21 words
Compositions according to claim 12, in which the organic binder comprises from 2 to 20% by weight of the polar compound.
Claim 15
Dependent Claim
21 words
Compositions according to claim 13, in which the organic binder comprises from 4 to 10% by weight of the polar compound.
Claim 16
Dependent Claim
20 words
Compositions according to claim 9, in which the organic binder has an initial acid number of between 1 and 10.
Claim 17
Dependent Claim
20 words
Compositions according to claim 15, in which the organic binder has an initial acid number of between 2 and 5.
Claim 18
Dependent Claim
27 words
Compositions according to claim 16, in which the weight ratio between the abrasive material and the organic binder is within the range of from 1:1 to 8:1.
Claim 19
Dependent Claim
27 words
Compositions according to claim 17, in which the weight ratio between the abrasive material and the organic binder is within the range of from 4:1 to 5.5:1.
Claim 20
Dependent Claim
16 words
Compositions according to claim 1, in which the organic binder comprises a high molecular weight polymer.
Claim 21
Dependent Claim
27 words
Compositions according to claim 19, in which the weight ratio between the abrasive material and the organic binder is within the range of from 1:1 to 97:3.
Claim 22
Dependent Claim
34 words
Particulate scouring compositions according to claim 1, comprising 0.1 to 40% by weight of a detergent surfactant and 5 to 99% by weight of the abrasive agent, the balance being conventional scouring cleanser adjuncts.
Claim 23
Dependent Claim
37 words
Liquid scouring compositions according to claim 1, comprising 0.1 to 50% by weight of a detergent surfactant and 5 to 60% by weight of the abrasive agent, the balance being water and conventional liquid scouring cleanser adjuncts.
Claim 24
Dependent Claim
22 words
Skin cleansing compositions according to claim 1, comprising 5 to 60% by weight of the abrasive agent in a cosmetically acceptable base.
References Cited (Backward Citations)
GB955081A
Cited
US3387956A
Cited
US3955942A
Cited
GB1345119A
Cited
US4005027A
Cited
US4089943A
Cited
US4157387A
Cited
US4111666A
Cited
US4122025A
Cited
US4181633A
Cited
US4302347A
Cited
US4355067A
Cited
US4396525A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-08-26 | 1989-02-25 | 1989-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-08-26 | 1993-02-25 | 1993-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-08-26 | 1997-02-25 | 1997-08-27 | $7700.00 | Window Closed / Lapsed |