US4279796A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Carpet cleaning/coating mixture and method
Assignee: Individual
•
Filing: 1980-03-20
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Granted: 1981-07-21
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Expires: 2000-03-20
Abstract
Abstract An aqueous dispersion of carpet protector is provided with an additional ingredient which converts it to a carpet cleaner. The aqueous dispersion preferably contains a nonfluorinated vinyl polymer and a perfluoroalkyl ester of carboxylic acid. The additional ingredient is hydrogen peroxide or carbonated water. The mixture is applied to carpet and buffed to cause foaming and loosen soil. A pad in the buffer removes soil. After drying, a soil repellent coating remains on the fibers.
Inventors
- 👤 Kevork W. Tarkinson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 12:30
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/0005; C11D3/0094; A; A47; A47L; A47L13/00; A47L13/10; C11D3/0031; C11D3/0036; D; D06; D06M; D06M11/00; D06M11/32; D06M11/50; D06M13/00; D06M13/10; D06M13/184; D06M13/207; D06M13/21; D06M13/213; D06M15/00; D06M15/19; D06M15/21; D06M15/263
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
91 words
In an aqueous dispersion containing a nonfluorinated vinyl polymer and at least 5 weight percent of a perfluoroalkyl ester of a carboxylic acid of from 3 to 30 carbon atoms in amounts effective to provide substantial dry soil resistance in carpet to which said aqueous dispersion is applied, the improvement which comprises: an additional ingredient in said aqueous dispersion consisting of hydrogen peroxide in an amount effective to remove soil from carpet to which said aqueous dispersion is applied followed by buffing the carpet to promote foaming of the aqueous dispersion.
Claim 2
Dependent Claim
91 words
In an aqueous dispersion containing a nonfluorinated vinyl polymer and at least 5 weight percent of a perfluoroalkyl ester of a carboxylic acid of from 3 to 30 carbon atoms in amounts effective to provide substantial dry soil resistance in carpet to which said aqueous dispersion is applied, the improvement which comprises: an additional ingredient in said aqueous dispersion consisting of hydrogen peroxide in an amount effective to remove soil from carpet to which said aqueous dispersion is applied followed by buffing the carpet to promote foaming of the aqueous dispersion.
Claim 3
Independent Claim
112 words
A method of cleaning existing soil from carpet and enhancing its resistance to future soiling which comprises the steps of (1) applying to the carpet an aqueous dispersion containing: in concentration effective to provide substantial dry soil resistance in the carpet, a nonfluorinated vinyl polymer and a perfluoroalkyl ester of a carboxylic acid of from 3 to 30 carbon atoms; and, in a concentration effective to cause said aqueous dispersion to remove soil from the carpet without substantially reducing the dry soil resistance provided by said vinyl polymer and perfluoroalkyl ester, an additional ingredient consisting of hydrogen peroxide; and (2) mechanically buffing the carpet to cause foaming of said aqueous dispersion thereon.
Claim 4
Independent Claim
112 words
A method of cleaning existing soil from carpet and enhancing its resistance to future soiling which comprises the steps of (1) applying to the carpet an aqueous dispersion containing: in concentration effective to provide substantial dry soil resistance in the carpet, a nonfluorinated vinyl polymer and a perfluoroalkyl ester of a carboxylic acid of from 3 to 30 carbon atoms; and, in a concentration effective to cause said aqueous dispersion to remove soil from the carpet without substantially reducing the dry soil resistance provided by said vinyl polymer and perfluoroalkyl ester, an additional ingredient consisting of hydrogen peroxide; and (2) mechanically buffing the carpet to cause foaming of said aqueous dispersion thereon.
References Cited (Backward Citations)
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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) | 1984-07-20 | 1985-01-19 | 1985-07-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-07-20 | 1989-01-19 | 1989-07-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-07-20 | 1993-01-19 | 1993-07-21 | $7700.00 | Window Closed / Lapsed |