Invention Grant
US6114295A Dry cleaning system using densified carbon dioxide and a functionalized
surfactant
失效
使用致密二氧化碳和官能化表面活性剂的干洗系统
- Patent Title: Dry cleaning system using densified carbon dioxide and a functionalized surfactant
- Patent Title (中): 使用致密二氧化碳和官能化表面活性剂的干洗系统
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Application No.: US388887Application Date: 1999-09-02
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Publication No.: US6114295APublication Date: 2000-09-05
- Inventor: Dennis Stephen Murphy
- Applicant: Dennis Stephen Murphy
- Applicant Address: NY New York
- Assignee: Lever Brothers Company
- Current Assignee: Lever Brothers Company
- Current Assignee Address: NY New York
- Main IPC: D06L1/00
- IPC: D06L1/00 ; D06L1/04 ; C11D1/82 ; C11D3/26
Abstract:
A system for dry cleaning soils from fabrics is described which contains densified carbon dioxide combined with a selected surfactant. The densified carbon dioxide is used in a temperature range of about -78.5.degree. C. to about 100.degree. C. and a pressure range of about 14.7 psi to about 10,000 psi. The surfactant is selected from one of two groups of compounds having a formula ##STR1## as described in the text or a second group of siloxane compounds having a formula [AB].sub.y as described. A process for using the dry cleaning system is also described.
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