06131421 is referenced by 20 patents and cites 48 patents.

A system for dry cleaning soils from fabrics comprising densified carbon dioxide and a surfactant in the densified CO.sub.2. The densified carbon dioxide is in a temperature range of about -78.5.degree. C. to about 100.degree. C. and a pressure range of about 14.7 to about 10,000 psi. At least 0.1% by volume of a modifier is preferably present. 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.

Title
Dry cleaning system using densified carbon dioxide and a surfactant adjunct containing a CO.sub.2 -philic and a CO.sub.2 -phobic group
Application Number
399318
Publication Number
6131421
Application Date
September 2, 1999
Publication Date
October 17, 2000
Inventor
Dennis Stephen Murphy
Leonia
NJ, US
Judith Lynne Kerschner
Fairlawn
NJ, US
Sharon Harriott Jureller
Haworth
NJ, US
Agent
Edward A Squillante Jr
Assignee
Lever Brothers Company Division of Conopco
NY, US
IPC
C11D 3/16
C11D 1/82
C11D 1/722
C11D 1/72
D06F 43/02
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