发明名称 |
Method of dry cleaning using densified carbon dioxide and a surfactant |
摘要 |
A system for dry cleaning soils from fabrics comprising densified carbon dioxide and a surfactant in the densified CO2. The densified carbon dioxide is in a temperature range of about -78.5° C. to about 100° 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 CO2-philic moiety connected to a CO2-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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申请公布号 |
US6299652(B1) |
申请公布日期 |
2001.10.09 |
申请号 |
US20000568005 |
申请日期 |
2000.05.10 |
申请人 |
LEVER BROTHERS COMPANY, DIVISION OF CONOPCO, INC. |
发明人 |
JURELLER SHARON HARRIOTT;KERSCHNER JUDITH LYNNE |
分类号 |
D06L1/00;D06L1/04;D06L3/02;(IPC1-7):D06F43/00;C11D1/72;C11D3/43 |
主分类号 |
D06L1/00 |
代理机构 |
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