US3960742A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water-dispersable solvent emulsion type cleaner concentrate
Assignee: Chemcial Cleaning Corp Trust
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Filing: 1973-06-29
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Granted: 1976-06-01
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Expires: 1993-06-29
Abstract
Abstract A solvent emulsion type cleaner concentrate provides effective cleaning at recommended water dilutions of 896:1. The concentrate comprises about 30-60 parts by weight of an ethylene glycol monoalkyl ether solvent, together with inorganic alkaline solids and small amounts of two or more solids-suspending surfactants. The concentrate is non-flammable, ecologically acceptable, relatively non-toxic, and has corrosion inhibiting properties.
Inventors
- 👤 Edward O. Leonard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 00:48
CPC Classifications
C; C11; C11D; C11D1/00; C11D1/88; C11D1/90; C11D3/00; C11D3/43; C11D7/00; C11D7/02; C11D7/04; C11D7/06
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
116 words
A water-dispersible solvent emulsion type cleaner concentrate comprising: a. about 30-60 parts by weight of an ethylene glycol mono(lower)alkyl ether solvent, b. about 17-24.5 parts of an alkali hydroxide, c. about 9-15 parts of a member of the group ammonium and alkali metal metasilicates, d. a small amount of a nonionic ampholyte selected from the (higher)alkyl betaines and the alkali salts of N-(higher)alkyl beta aminodipropionates, said(higher)alkyl groups having more than 4 and up to about 22 carbon atoms, and e. a small amount of an anionic hydrotrope selected from the alkali salts of benzene and (lower) alkyl benzene sulfonates, said amounts of (d) and (e) being sufficient to maintain the inorganic ingredients in a stable suspension.
Claim 2
Dependent Claim
116 words
A water-dispersible solvent emulsion type cleaner concentrate comprising: a. about 30-60 parts by weight of an ethylene glycol mono(lower)alkyl ether solvent, b. about 17-24.5 parts of an alkali hydroxide, c. about 9-15 parts of a member of the group ammonium and alkali metal metasilicates, d. a small amount of a nonionic ampholyte selected from the (higher)alkyl betaines and the alkali salts of N-(higher)alkyl beta aminodipropionates, said(higher)alkyl groups having more than 4 and up to about 22 carbon atoms, and e. a small amount of an anionic hydrotrope selected from the alkali salts of benzene and (lower) alkyl benzene sulfonates, said amounts of (d) and (e) being sufficient to maintain the inorganic ingredients in a stable suspension.
Claim 3
Dependent Claim
14 words
Concentrate of claim 1 including about 0.6-8.71 parts of a (higher)fatty acid alkanolamine condensate.
Claim 4
Dependent Claim
26 words
Concentrate of claim 1 including about 1-10 parts of a polyethenoxy nonionic nonyl phenol containing about nine mols of ethylene oxide per mol surfactant foaming agent.
Claim 5
Dependent Claim
14 words
Concentrate of claim 1 contained within a water soluble but concentrate-insoluble synthetic organic resin.
Claim 6
Dependent Claim
17 words
Concentrate of claim 1 wherein said ethylene glycol mono (lower)alkyl ether solvent is ethylene glycol monobutyl ether.
Claim 7
Dependent Claim
11 words
Concentrate of claim 1 wherein said alkali hydroxide is potassium hydroxide.
Claim 8
Dependent Claim
12 words
Concentrate of claim 1 wherein said alkali metal metasilicate is sodium metasilicate.
Claim 9
Dependent Claim
12 words
Concentrate of claim 1 wherein said nonionic ampholyte is a (higher)alkyl betaine.
Claim 10
Dependent Claim
17 words
Concentrate of claim 1 wherein said nonionic ampholyte is an alkali salt of an N-(higher)alkyl beta aminodipropionate.
Claim 11
Dependent Claim
16 words
Concentrate of claim 9 wherein said salt is the mono sodium salt of N-lauryl beta aminodipropionate.
Claim 12
Dependent Claim
12 words
Concentrate of claim 1 wherein said anionic hydrotrope is sodium xylene sulfonate.
Claim 13
Dependent Claim
14 words
Concentrate of claim 2 wherein said fatty acid alkanolamine condensate is a Kritchevsky amide.
Claim 14
Dependent Claim
24 words
Concentrate of claim 12 wherein said Kritchevsky amide is a condensate of about 1 mol of coconut fatty acids with 2 mols of diethanolamine.
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) | 1979-06-01 | 1979-12-01 | 1980-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-06-01 | 1983-12-01 | 1984-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-06-01 | 1987-12-01 | 1988-06-01 | $7700.00 | Window Closed / Lapsed |