Patent US4759867A successfully refreshed from Google Patents.
US4759867A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hard surface acid cleaner
Assignee: Clorox Co
•
Filing: 1987-06-03
•
Granted: 1988-07-26
•
Expires: 2007-06-03
Abstract
Abstract Hard surface acid cleaners providing surprisingly fast acting and effective cleaning results across a wide variety of problematic cleaning areas, and methods for making the same are made by combining alkyl aryl sulfonic acids and water. The preferred alkyl aryl sulfonic acids are alkyl benzene sulfonic acids of the general structure ##STR1## wherein R is alkyl averaging 5 to 20 carbon atoms in length. Additionally, solvents, antimicrobial compounds, defoamers, thickeners and other cleaning adjuvants may be added to these hard surface acid cleaners.
Inventors
- 👤 Clement Kin-Man Choy
- 👤 Ellen E. Valachovic
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:28
CPC Classifications
C; C11; C11D; C11D1/00; C11D1/02; C11D1/12; C11D1/22; C11D1/24; C11D3/00; C11D3/43
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
184 words
An all purpose hard surface acid cleaner consisting essentially of: (a) about 1.0% to 30.0% by weight of an acid surfactant providing the sole source of acidity and surfactancy to the cleaner, said acid surfactant being selected from alkyl benzene sulfonic acids having an alkyl group averaging 5 to 20 carbon atoms; alkylated diphenyl oxide disulfonates having an alkyl group averaging 5 to 20 carbons; and mixtures thereof; (b) about 0.1 to 15% by weight of an organic solvent selected from straight chain, primary, secondary and tertiary C 1-10 alkanols, C 5-10 alicyclic alkanols, C 2-8 dialkyl ethers, C 3-20 glycol ethers, and mixtures thereof; (c) 0.1 to 10% of a quaternary ammonium compound used as an anti-microbial agent, said compound having the structure ##STR10## wherein R and R 1 are alkyls of C 5 to C 20 , aryls of C 6 to C 20 , or alkylaryls of C 7 to C 20 ; and A - is an acid stable anion; said anti-microbial agent present in an amount which does not co-precipitate with the acid surfactant; and (d) the remainder, water.
Claim 2
Dependent Claim
184 words
An all purpose hard surface acid cleaner consisting essentially of: (a) about 1.0% to 30.0% by weight of an acid surfactant providing the sole source of acidity and surfactancy to the cleaner, said acid surfactant being selected from alkyl benzene sulfonic acids having an alkyl group averaging 5 to 20 carbon atoms; alkylated diphenyl oxide disulfonates having an alkyl group averaging 5 to 20 carbons; and mixtures thereof; (b) about 0.1 to 15% by weight of an organic solvent selected from straight chain, primary, secondary and tertiary C 1-10 alkanols, C 5-10 alicyclic alkanols, C 2-8 dialkyl ethers, C 3-20 glycol ethers, and mixtures thereof; (c) 0.1 to 10% of a quaternary ammonium compound used as an anti-microbial agent, said compound having the structure ##STR10## wherein R and R 1 are alkyls of C 5 to C 20 , aryls of C 6 to C 20 , or alkylaryls of C 7 to C 20 ; and A - is an acid stable anion; said anti-microbial agent present in an amount which does not co-precipitate with the acid surfactant; and (d) the remainder, water.
Claim 3
Dependent Claim
16 words
The cleaner of claim 1 wherein said acid surfactant is C 5-20 alkyl benzene sulfonic acid.
Claim 4
Dependent Claim
58 words
The cleaner of claim 1 further comprising 0.001 to 15.0% by weight of (e) a further antimicrobial compound which is a substituted phenol of the general structure ##STR11## wherein R 1 , R 2 , R 3 , R 4 , R 5 can be phenyl, substituted phenyl, Cl, or H; and R 6 is H or Na.
Claim 5
Dependent Claim
18 words
The cleaner of claim 3 further comprising (f) a thickener selected from gums, resins, polysaccharides, and mixtures thereof.
References Cited (Backward Citations)
GB778903A
Cited
US3463736A
Cited
DE2050560A1
Cited
US3726813A
Cited
US4011097A
Cited
US3969258A
Cited
US3969282A
Cited
DE2919666A1
Cited
US4414035A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-07-26 | 1992-01-25 | 1992-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-07-26 | 1996-01-25 | 1996-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-07-26 | 2000-01-25 | 2000-07-26 | $7700.00 | Window Closed / Lapsed |