EP0518653B1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Method and composition using densified carbon dioxide and cleaning adjunct to clean fabrics
Assignee: Clorox Co
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Filing: 1992-06-11
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Granted: 1995-09-06
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Expires: 2012-06-11
Abstract
Abstract The invention provides a method and composition for the removal of nonpolar stains from a fabric comprising: contacting said stains with densified carbon dioxide and a cleaning adjunct in mixture with said carbon dioxide. <IMAGE>
Inventors
- 👤 James D. Mitchell
- 👤 Daniel T. Carty
- 👤 James R. Latham
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-09 16:09
CPC Classifications
D; D06; D06L; D06L1/00; D06L1/02; B; B08; B08B; B08B7/00; B08B7/0021; C; C11; C11D; C11D7/00; C11D7/02; D06F; D06F43/00; D06F43/007; C11D2111/00; C11D2111/10; C11D2111/12
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
50 words
A method for the removal of nonpolar stains from a fabric comprising: contacting said stains first with a nonpolar cleaning adjunct with a viscosity of 0.5 MPa.s (0.5 cps) or greater at standard temperature and pressure and thereafter with a fluid medium which is either densified or supercritical carbon dioxide.
Claim 2
Dependent Claim
28 words
The method of claim 1 further comprising the step of removing the mixture of the nonpolar cleaning adjunct and the densified or supercritical carbon dioxide and said stains.
Claim 3
Dependent Claim
30 words
A method as claimed in claim 1 or claim 2 characterized in that the densified carbon dioxide has a pressure, at room temperature, of greater than 800 psi (55 Bar).
Claim 4
Independent Claim
25 words
A method as claimed in any of claims 1-3 characterized in that the cleaning adjunct is selected from substituted and unsubstituted hydrocarbons and mixtures thereof.
Claim 5
Independent Claim
21 words
A method as claimed in any of claims 1 to 4 characterized in that the cleaning adjunct is a C₅₋₂₄ paraffin.
Claim 6
Dependent Claim
15 words
A method as claimed in claim 5 characterized in that the paraffin is mineral oil.
Claim 7
Dependent Claim
14 words
A method as claimed in claim 5 characterized in that the paraffin is petrolatum.
References Cited (Backward Citations)
No citation records indexed.
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