06148644 is referenced by 22 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
Application Number
399318
Publication Number
6148644
Application Date
May 19, 1998
Publication Date
November 21, 2000
Inventor
Dennis Stephen Murphy
Leonia
NJ, US
Judith Lynne Kerschner
Fairlawn
NJ, US
Sharon Harriott Jureller
Haworth
NJ, US
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
View Original Source