US Patent No: 5,683,473

Number of patents in Portfolio can not be more than 2000

Method of dry cleaning fabrics using densified liquid carbon dioxide

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Abstract

A method of dry cleaning fabrics using a dry cleaning system is described. The system comprises densified carbon dioxide, preferably in a liquid phase, and a selected surfactant which is soluble in the densified CO.sub.2. The surfactant has a polysiloxane, a branched polyalkylene oxide or a halocarbon group which is a functional CO.sub.2 -philic moiety connected to a CO.sub.2 -phobic functional moiety. The surfactant either exhibits an HLB of less than 15 or has a ratio of siloxyl to substituted siloxyl groups of greater than 0.5:1.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
LEVER BROTHERS COMPANYNEW YORK, NY1260

International Classification(s)

  • [Classification Symbol]
  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Harris, Rosemarie Yonkers, NY 4 383
Jureller, Sharon Harriott Haworth, NJ 8 445
Kerschner, Judith Lynne Hawthorne, NJ 22 496

Cited Art

Patent Info (Count) # Cites Year
 
RAYTHEON COMPANY (3)
5,316,591 Cleaning by cavitation in liquefied gas 128 1992
5,339,844 Low cost equipment for cleaning using liquefiable gases 113 1993
5,456,759 Method using megasonic energy in liquefied gases 123 1994
 
BASF CORPORATION (1)
5,152,933 Ethylene oxide/propylene oxide copolymers as co-surfactants with detergency boosting properties in compositions also containing alkyl benzene sulfonate and ethoxylated alcohol 16 1990
 
OL SECURITY LIMITED LIABILITY COMPANY (1)
5,467,492 Dry-cleaning of garments using liquid carbon dioxide under agitation as cleaning medium 99 1994

Patent Citation Ranking

Forward Cites

Patent Info (Count) # Cites Year
 
MICELL TECHNOLOGIES, INC. (26)
5,858,022 Dry cleaning methods and compositions 92 1997
6,030,663 Surface treatment 29 1998
6,270,531 End functionalized polysiloxane surfactants in carbon dioxide formulations 23 1998
6,010,542 Method of dyeing substrates in carbon dioxide 14 1998
6,218,353 Solid particulate propellant systems and aerosol containers employing the same 4 1998
6,200,352 Dry cleaning methods and compositions 52 1999
6,200,943 Combination surfactant systems for use in carbon dioxide-based cleaning formulations 64 1999
6,280,481 Sizing methods and compositions for carbon dioxide dry cleaning 11 1999
6,228,826 End functionalized polysiloxane surfactants in carbon dioxide formulations 55 1999
6,187,383 Surface treatment 5 2000
6,248,136 Methods for carbon dioxide dry cleaning with integrated distribution 13 2000
6,165,560 Surface treatment 5 2000
6,287,640 Surface treatment of substrates with compounds that bind thereto 16 2000
6,200,637 Method of coating a substrate in carbon dioxide with a carbon-dioxide insoluble material 8 2000
6,165,559 Method of coating a solid substrate 9 2000
6,589,592 Methods of coating articles using a densified coating system 1 2000
6,270,844 Method of impregnating a porous polymer substrate 8 2000
6,258,766 Dry cleaning methods and compositions 28 2001
6,297,206 Combination surfactant systems for use in carbon dioxide-based cleaning formulations 12 2001
6,344,243 Surface treatment 34 2001
6,666,050 Apparatus for conserving vapor in a carbon dioxide dry cleaning system 0 2002
6,953,041 Compositions of transition metal species in dense phase carbon dioxide and methods of use thereof 4 2002
7,114,508 Cleaning apparatus having multiple wash tanks for carbon dioxide dry cleaning and methods of using same 0 2003
6,795,991 Apparatus for conserving vapor in a carbon dioxide dry cleaning system 0 2003
6,921,420 Apparatus and methods for conserving vapor in a carbon dioxide dry cleaning system 0 2004
7,407,703 Composite membrane having oleophobic properties 1 2005
 
TOKYO ELECTRON LIMITED (25)
6,509,141 Removal of photoresist and photoresist residue from semiconductors using supercritical carbon dioxide process 45 1999
6,500,605 Removal of photoresist and residue from substrate using supercritical carbon dioxide process 48 2000
6,890,853 Method of depositing metal film and metal deposition cluster tool including supercritical drying/cleaning module 23 2001
6,537,916 Removal of CMP residue from semiconductor substrate using supercritical carbon dioxide process 26 2001
6,871,656 Removal of photoresist and photoresist residue from semiconductors using supercritical carbon dioxide process 15 2002
6,926,012 Method for supercritical processing of multiple workpieces 8 2002
6,736,149 Method and apparatus for supercritical processing of multiple workpieces 21 2002
7,060,422 Method of supercritical processing of a workpiece 5 2003
6,928,746 Drying resist with a solvent bath and supercritical CO2 7 2003
6,924,086 Developing photoresist with supercritical fluid and developer 5 2003
7,270,941 Method of passivating of low dielectric materials in wafer processing 0 2003
7,064,070 Removal of CMP and post-CMP residue from semiconductors using supercritical carbon dioxide process 6 2003
7,169,540 Method of treatment of porous dielectric films to reduce damage during cleaning 0 2003
7,163,380 Control of fluid flow in the processing of an object with a fluid 10 2003
7,208,411 Method of depositing metal film and metal deposition cluster tool including supercritical drying/cleaning module 0 2004
7,250,374 System and method for processing a substrate using supercritical carbon dioxide processing 3 2004
7,044,662 Developing photoresist with supercritical fluid and developer 0 2004
7,307,019 Method for supercritical carbon dioxide processing of fluoro-carbon films 1 2004
7,491,036 Method and system for cooling a pump 3 2004
7,291,565 Method and system for treating a substrate with a high pressure fluid using fluorosilicic acid 4 2005
7,550,075 Removal of contaminants from a fluid 1 2005
7,387,868 Treatment of a dielectric layer using supercritical CO.sub.2 1 2005
7,442,636 Method of inhibiting copper corrosion during supercritical CO.sub.2 cleaning 1 2005
7,399,708 Method of treating a composite spin-on glass/anti-reflective material prior to cleaning 0 2005
7,789,971 Treatment of substrate using functionalizing agent in supercritical carbon dioxide 0 2005
 
The Procter & Gamble Company (24)
6,564,591 Methods and apparatus for particulate removal from fabrics 11 2001
6,939,837 Non-immersive method for treating or cleaning fabrics using a siloxane lipophilic fluid 5 2001
6,930,079 Process for treating a lipophilic fluid 6 2001
6,855,173 Use of absorbent materials to separate water from lipophilic fluid 17 2001
6,840,069 Systems for controlling a drying cycle in a drying apparatus 14 2001
6,840,963 Home laundry method 2 2001
6,828,292 Domestic fabric article refreshment in integrated cleaning and treatment processes 11 2001
6,706,076 Process for separating lipophilic fluid containing emulsions with electric coalescence 11 2001
6,706,677 Bleaching in conjunction with a lipophilic fluid cleaning regimen 11 2001
6,691,536 Washing apparatus 82 2001
6,673,764 Visual properties for a wash process using a lipophilic fluid based composition containing a colorant 8 2001
6,670,317 Fabric care compositions and systems for delivering clean, fresh scent in a lipophilic fluid treatment process 15 2001
6,793,685 Methods for particulate removal from fabrics 8 2003
6,818,021 Domestic fabric article refreshment in integrated cleaning and treatment processes 2 2003
6,898,951 Washing apparatus 36 2003
6,998,377 Process for treating a lipophilic fluid 2 2004
7,365,043 Lipophilic fluid cleaning compositions capable of delivering scent 3 2004
7,345,016 Photo bleach lipophilic fluid cleaning compositions 0 2004
7,129,200 Domestic fabric article refreshment in integrated cleaning and treatment processes 0 2004
7,063,750 Domestic fabric article refreshment in integrated cleaning and treatment processes 0 2004
7,033,985 Domestic fabric article refreshment in integrated cleaning and treatment processes 10 2004
7,275,400 Washing apparatus 20 2004
7,439,216 Composition comprising a silicone/perfluoro surfactant mixture for treating or cleaning fabrics 0 2005
7,704,937 Composition comprising an organosilicone/diol lipophilic fluid for treating or cleaning fabrics 1 2008
 
EMINENT TECHNOLOGIES LLC (6)
6,558,432 Cleaning system utilizing an organic cleaning solvent and a pressurized fluid solvent 31 2001
7,147,670 Cleaning system utilizing an organic cleaning solvent and a pressurized fluid solvent 7 2003
7,534,308 Cleaning system utilizing an organic cleaning solvent and a pressurized fluid solvent 2 2006
7,566,347 Cleaning process utilizing an organic solvent and a pressurized fluid solvent 0 2007
RE41115 Cleaning system utilizing an organic cleaning solvent and a pressurized fluid solvent 1 2008
7,867,288 Cleaning system utilizing an organic cleaning solvent and a pressurized fluid solvent 1 2009
 
Lever Brothers Company (6)
5,977,045 Dry cleaning system using densified carbon dioxide and a surfactant adjunct 55 1998
6,148,644 Dry cleaning system using densified carbon dioxide and a surfactant adjunct 35 1998
6,131,421 Dry cleaning system using densified carbon dioxide and a surfactant adjunct containing a CO.sub.2 -philic and a CO.sub.2 -phobic group 30 1999
6,114,295 Dry cleaning system using densified carbon dioxide and a functionalized surfactant 31 1999
6,461,387 Dry cleaning system with low HLB surfactant 4 2000
6,299,652 Method of dry cleaning using densified carbon dioxide and a surfactant 3 2000
 
The University of North Carolina at Chapel Hill (5)
5,866,005 Cleaning process using carbon dioxide as a solvent and employing molecularly engineered surfactants 127 1996
5,944,996 Cleaning process using carbon dioxide as a solvent and employing molecularly engineered surfactants 109 1997
6,224,774 Method of entraining solid particulates in carbon dioxide fluids 38 1999
6,684,525 Phosphate fluorosurfactants for use in carbon dioxide 3 2001
7,122,060 Phosphate fluorosurfactants for use in carbon dioxide 0 2003
 
UNILEVER HOME & PERSONAL CARE USA, DIVISION OF CONOPCO, INC. (5)
6,309,425 Cleaning composition and method for using the same 62 1999
6,605,580 Bleaching composition 1 2000
6,562,774 Bleaching composition 0 2000
6,495,502 Bleaching composition for dry cleaning containing transition metal bleach catalyst 0 2000
6,479,447 Bleaching composition for dry cleaning containing transition metal bleach catalyst 0 2000
 
R.R. STREET & CO., INC. (2)
6,755,871 Cleaning system utilizing an organic cleaning solvent and a pressurized fluid solvent 25 2001
7,435,265 Cleaning system utilizing an organic cleaning solvent and a pressurized fluid solvent 2 2004
 
R.R. STREET CO. INC. (2)
6,355,072 Cleaning system utilizing an organic cleaning solvent and a pressurized fluid solvent 39 1999
7,097,715 Cleaning system utilizing an organic cleaning solvent and a pressurized fluid solvent 3 2000
 
ANSCOTT CHEMICAL INDUSTRIES (1)
6,129,451 Liquid carbon dioxide cleaning system and method 5 1998
 
BHA GROUP, INC. (1)
7,771,818 Treatment of porous article 0 2002
 
CRODA INTERNATIONAL PLC (1)
7,481,893 Cleaning textiles 0 2003
 
INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE (1)
6,183,521 Method of fiber scouring with supercritical carbon dioxide 1 1998
 
MOSAID TECHNOLOGIES INCORPORATED (1)
7,018,966 Compositions and methods for preventing gel formation comprising a siloxane and an alkylamine 1 2003
 
NOVELLUS SYSTEMS, INC. (1)
6,764,552 Supercritical solutions for cleaning photoresist and post-etch residue from low-k materials 46 2002
 
UNIVERSITY OF PITTSBURGH (1)
6,686,438 Carbon dioxide-philic compounds and methods of synthesis thereof 0 2000
 
Other [Check patent profile for assignment information] (1)
6,332,342 Methods for carbon dioxide dry cleaning with integrated distribution 0 2001