US4507155A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cleaning composition and method
Assignee: Key-Tech Inc
•
Filing: 1983-07-08
•
Granted: 1985-03-26
•
Expires: 2003-07-08
Abstract
Abstract A cleaning composition particularly suited for removing dried printing ink residue from a substrate is described comprising a chlorinated hydrocarbon liquid, a petroleum distillate, an aliphatic alcohol and aqueous ammonia.
Inventors
- 👤 Robert H. Cheek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 19:32
CPC Classifications
C; C11; C11D; C11D7/00; C11D7/22; C11D7/26; C11D7/261; C11D7/50; C11D7/5004; C11D7/5018; C11D7/24; C11D7/28
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
84 words
A cleaning composition consisting essentially of about 5-35 percent by volume of a chlorinated hydrocarbon liquid selected from the group consisting of chloroform, carbon tetrachloride, trichloroethane, tetrachloroethane, pentachloroethane, trichlorethylene and perchloroethylene, about 5-35 percent by volume of a petroleum distillate selected from the group consisting of petroleum naphtha, mineral spirits, Stoddard solvent and ligroin, about 30-50 percent by volume of an aliphatic alcohol selected from the group consisting of methyl alcohol, ethyl alcohol and isopropyl alcohol, and about 10-40 percent by volume aqueous ammonia.
Claim 2
Dependent Claim
84 words
A cleaning composition consisting essentially of about 5-35 percent by volume of a chlorinated hydrocarbon liquid selected from the group consisting of chloroform, carbon tetrachloride, trichloroethane, tetrachloroethane, pentachloroethane, trichlorethylene and perchloroethylene, about 5-35 percent by volume of a petroleum distillate selected from the group consisting of petroleum naphtha, mineral spirits, Stoddard solvent and ligroin, about 30-50 percent by volume of an aliphatic alcohol selected from the group consisting of methyl alcohol, ethyl alcohol and isopropyl alcohol, and about 10-40 percent by volume aqueous ammonia.
Claim 3
Dependent Claim
38 words
The cleaning composition of claim 1 consisting essentially of about 33-40 percent by volume of a mixture of perchloroethylene and petroleum naptha, about 33-40 percent by volume of ethyl alcohol and about 20-33 percent by volume aqueous ammonia.
Claim 4
Dependent Claim
11 words
The composition of claim 2 wherein said ethyl alcohol is denatured.
Claim 5
Dependent Claim
34 words
A cleaning composition consisting essentially of about 5-35 percent by volume perchloroethylene, about 5-35 percent by volume petroleum naptha, about 30-50 percent by volume ethyl alcohol and about 10-40 percent by volume aqueous ammonia.
Claim 6
Dependent Claim
34 words
A cleaning composition consisting essentially of about 5-35 percent by volume perchloroethylene, about 5-35 percent by volume petroleum naptha, about 30-50 percent by volume ethyl alcohol and about 10-40 percent by volume aqueous ammonia.
Claim 7
Dependent Claim
12 words
The cleaning composition of claim 4 wherein said ethyl alcohol is denatured.
Claim 8
Independent Claim
115 words
A method of removing dried printing ink residue from a substrate comprising the steps of applying to the substrate a cleaning composition consisting essentially of about 5-35 percent by volume of chlorinated hydrocarbon liquid selected from the group consisting of chloroform, carbon tetrachloride, trichloroethane, tetrachloroethane, pentachloroethane, trichloroethylene and perchloroethylene, about 5-35 percent by volume of a petroleum distillate selected from the group consisting of petroleum naphtha, mineral spirits, Stoddard solvent and ligroin, about 30-50 percent by volume of an aliphatic alcohol selected from the group consisting of methyl alcohol, ethyl alchol and isopropyl alcohol and about 10-40 percent by volume aqueous ammonia; and wiping away the cleaning composition and dissolved ink residue from the substrate.
Claim 9
Independent Claim
115 words
A method of removing dried printing ink residue from a substrate comprising the steps of applying to the substrate a cleaning composition consisting essentially of about 5-35 percent by volume of chlorinated hydrocarbon liquid selected from the group consisting of chloroform, carbon tetrachloride, trichloroethane, tetrachloroethane, pentachloroethane, trichloroethylene and perchloroethylene, about 5-35 percent by volume of a petroleum distillate selected from the group consisting of petroleum naphtha, mineral spirits, Stoddard solvent and ligroin, about 30-50 percent by volume of an aliphatic alcohol selected from the group consisting of methyl alcohol, ethyl alchol and isopropyl alcohol and about 10-40 percent by volume aqueous ammonia; and wiping away the cleaning composition and dissolved ink residue from the substrate.
Claim 10
Dependent Claim
41 words
The method of claim 6 wherein the cleaning composition consists essentially of about 33-40 percent by volume of a mixture of perchloroethylene and petroleum naptha, about 33-40 percent by volume of ethyl alcohol and about 20-33 percent by volume aqueous ammonia.
Claim 11
Dependent Claim
30 words
The method of claim 6 wherein the cleaning composition consists essentially of perchloroethylene as said chlorinated hydrocarbon, petroleum naptha as said petroleum distillate, and ethyl alcohol as said aliphatic alcohol.
Claim 12
Dependent Claim
11 words
The method of claim 7 wherein said ethyl alcohol is denatured.
Claim 13
Dependent Claim
11 words
The method of claim 8 wherein said ethyl alcohol is denatured.
References Cited (Backward Citations)
US114464A
Cited
US224841A
Cited
US450431A
Cited
US618592A
Cited
US2697674A
Cited
US1184164A
Cited
US1501086A
Cited
US1447734A
Cited
US1744648A
Cited
US2271491A
Cited
US2622038A
Cited
US3354088A
Cited
US3373115A
Cited
US3342740A
Cited
US3625854A
Cited
US3813342A
Cited
US3817871A
Cited
US3679479A
Cited
US3755184A
Cited
US3772205A
Cited
US3806460A
Cited
US3773677A
Cited
US3887497A
Cited
US4199482A
Cited
US4302365A
Cited
US4435305A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-03-25 | 1988-09-24 | 1989-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-03-25 | 1992-09-24 | 1993-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-03-25 | 1996-09-24 | 1997-03-26 | $7700.00 | Window Closed / Lapsed |