Patent US4099639A successfully refreshed from Google Patents.
Patent US4193886A successfully refreshed from Google Patents.
US4193886A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Novel low temperature cleaner
Assignee: Reckitt and Colman Subsidiary Corp
•
Filing: 1976-04-22
•
Granted: 1980-03-18
•
Expires: 1996-04-22
Abstract
Abstract A weakly alkaline cleaning composition for the removal of soils containing free or combined organic acids comprising (A) at least one polyhydric alcohol or a lower aliphatic ether or ester thereof having at least 2 free hydroxy groups, (B) 1.0 to 500% by weight of at least one alkali metal bicarbonate based on the weight of the polyhydric alcohol and (C) 5.0 to 1000% by weight of at least one alkali metal salt of a weak organic acid based on the weight of the polyhydric alcohol and a method of removing soils containing free or combined organic acids from a surface.
Inventors
- 👤 Daniel Schoenholz
- 👤 Arthur W. Petersen
- 👤 Marcus A. Northup, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:41
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/16; C11D3/20; C11D3/2075; C11D3/0005; C11D3/0057; C11D3/02; C11D3/04; C11D3/10; C11D3/2003; C11D3/2041; C11D3/2065; C11D3/2068; C11D3/22; C11D3/221
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
83 words
A weakly alkaline composition for removing soil containing free or combined organic acids comprising (A) at least one polyhydric alcohol or a lower aliphatic ether or ester thereof having at least 2 free hydroxy groups, (B) 1.0 to 500% by weight of at least one alkali metal bicarbonate based on the weight of the polyhydric alcohol and (C) 5.0 to 1000% by weight of at least one alkali metal salt of a weak organic acid based on the weight of the polyhydric alcohol.
Claim 2
Dependent Claim
83 words
A weakly alkaline composition for removing soil containing free or combined organic acids comprising (A) at least one polyhydric alcohol or a lower aliphatic ether or ester thereof having at least 2 free hydroxy groups, (B) 1.0 to 500% by weight of at least one alkali metal bicarbonate based on the weight of the polyhydric alcohol and (C) 5.0 to 1000% by weight of at least one alkali metal salt of a weak organic acid based on the weight of the polyhydric alcohol.
Claim 3
Dependent Claim
28 words
The composition of claim 1 wherein the alkali metal salt of the weak organic acid is a mixture of at least 2 alkali metal salts of acetic acid.
Claim 4
Dependent Claim
21 words
The composition of claim 2 wherein the alkali metal salt(s) is an eutectic mixture of the sodium, potassium and lithium acetates.
Claim 5
Dependent Claim
62 words
The composition of claim 1 wherein the polyhydric alcohol compound having at least 2 hydroxy groups is selected from the group consisting of ethylene glycol, diethylene glycol, triethylene glycol, glycerol, diglycerol, triglycerol, pentaerythritol, sorbitol, mannitol, inositol, trimethylol propane, trimethylol ethane, and partial esters of polyols having at least 2 free hydroxy groups and aliphatic carboxylic acids of 1 to 7 carbon atoms.
Claim 6
Dependent Claim
24 words
The composition of claim 1 wherein the polyhydric alcohol compound has a ratio of carbon atoms to hydroxyl groups of not more than 4.
Claim 7
Dependent Claim
19 words
The composition of claim 1 wherein the polyhydric alcohol is selected from the group consisting of mannitol and sorbitol.
Claim 8
Dependent Claim
10 words
The composition of claim 1 wherein the composition is anhydrous.
Claim 9
Dependent Claim
43 words
The composition of claim 1 in the form of an aqueous concentrate wherein the polyhydric alcohol has a boiling point above 350° F., is water-soluble and melts below 500° F. and is present in 1 to 90% by weight of the aqueous composition.
Claim 10
Dependent Claim
86 words
A composition of claim 8 comprising in its aqueous concentrate portion 3 to 14% by weight of a cleaning composition comprising 2 to 5 parts by weight of sorbitol, 0.1 to 4 parts by weight of an alkali metal bicarbonate and 1 to 5 parts by weight of an eutectic mixture of sodium acetate, potassium acetate and lithium acetate, an aqueous carrier, a thickening agent, a finely divided material to aid even spreading and a wetting agent with the balance being an aerosol propellant under pressure.
Claim 11
Dependent Claim
29 words
The composition of claim 1 wherein the composition also contains at least one member of the group consisting of a surface active agent and an inert, fine granular material.
References Cited (Backward Citations)
US3031408A
Cited
US3330767A
Cited
US3779933A
Cited
US3658711A
Cited
US3672993A
Cited
US3808051A
Cited
US3881948A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-03-18 | 1983-09-17 | 1984-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-03-18 | 1987-09-17 | 1988-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-03-18 | 1991-09-17 | 1992-03-18 | $7700.00 | Window Closed / Lapsed |