Patent US3979339A successfully refreshed from Google Patents.
US3979339A
Expired / Lapsed
US
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Hard surface cleaning compositions
Assignee: Procter and Gamble Co
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Filing: 1975-03-18
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Granted: 1976-09-07
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Expires: 1995-03-18
Abstract
Abstract Granular hard surface cleaning compositions containing low levels of certain water-soluble or dispersible polymeric materials. Incorporation of nonionizing polymers such as polyvinyl alcohol, and polyvinyl pyrrolidone into hard surface cleaning compositions unexpectedly provides improved soil removal over a variety of surfaces and types of soil.
Inventors
- 👤 Gene W. Claybaugh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 10:35
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/16; C11D3/20; C11D3/22; C11D3/222; C11D17/00; C11D17/0039; C11D3/37; C11D3/3746; C11D3/3753; C11D3/3769; C11D3/3776; C11D3/38; C11D3/382; C11D3/384
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
20 words
A method for removing soil from hard surfaces, the method comprising: a. contacting a surface with an aqueous solution containing
Claim 2
Independent Claim
20 words
A method for removing soil from hard surfaces, the method comprising: a. contacting a surface with an aqueous solution containing
Claim 3
Dependent Claim
132 words
from about 50 ppm to about 1000 ppm of a surfactant selected from the group consisting of anionic, nonionic, ampholytic, zwitterionic surfactants, and mixtures thereof; 2. from about 100 ppm to about 20,000 ppm of a builder selected from the group consisting of organic and inorganic builders and mixtures thereof; 3. from about 2 ppm to about 1000 ppm of a water soluble or dispersible nonionizing polymeric material selected from the group consisting of polyvinyl alcohols having a degree of hydrolysis of from about 60% to about 100% and a degree of polymerization of from about 100 to about 7000; and polyvinyl pyrrolidones having a degree of polymerization of from about 50 to about 6000; and mixtures thereof; and b. oscillating the solution across the hard surface to remove the soil thereon.
Claim 4
Dependent Claim
132 words
from about 50 ppm to about 1000 ppm of a surfactant selected from the group consisting of anionic, nonionic, ampholytic, zwitterionic surfactants, and mixtures thereof; 2. from about 100 ppm to about 20,000 ppm of a builder selected from the group consisting of organic and inorganic builders and mixtures thereof; 3. from about 2 ppm to about 1000 ppm of a water soluble or dispersible nonionizing polymeric material selected from the group consisting of polyvinyl alcohols having a degree of hydrolysis of from about 60% to about 100% and a degree of polymerization of from about 100 to about 7000; and polyvinyl pyrrolidones having a degree of polymerization of from about 50 to about 6000; and mixtures thereof; and b. oscillating the solution across the hard surface to remove the soil thereon.
Claim 5
Dependent Claim
13 words
A process according to claim 1 wherein the polymeric material is polyvinyl alcohol.
Claim 6
Dependent Claim
13 words
A process according to claim 2 wherein the surfactant is an anionic surfactant.
Claim 7
Dependent Claim
46 words
A process according to claim 3 wherein the anionic surfactant is selected from the group consisting of C 8 to C 16 alkylbenzene sulfonates, C 12 to C 18 alkyl sulfates, and C 12 to C 18 alkyl sulfates having from 1 to 10 ethoxy moieties.
Claim 8
Dependent Claim
35 words
A process according to claim 3 wherein the builder is an alkali metal salt of an anionic moiety selected from the group consisting of carbonates, phosphates, citrates, borates, bicarbonates, sesquicarbonates, silicates, polyphosphates, and mixtures thereof.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-09-07 | 1980-03-08 | 1980-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-09-07 | 1984-03-08 | 1984-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-09-07 | 1988-03-08 | 1988-09-07 | $7700.00 | Window Closed / Lapsed |