The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 08, 2006
Filed:
Sep. 02, 2003
Paul E. Galick, West Chester, PA (US);
Larry W. Arndt, West Chester, PA (US);
Shao-hua Guo, Exton, PA (US);
Ellen S. Lenz, West Chester, PA (US);
David R. Kinney, West Grove, PA (US);
Paul E. Galick, West Chester, PA (US);
Larry W. Arndt, West Chester, PA (US);
Shao-Hua Guo, Exton, PA (US);
Ellen S. Lenz, West Chester, PA (US);
David R. Kinney, West Grove, PA (US);
Lyondell Chemical Technology, L.P., Greenville, DE (US);
Abstract
A drycleaning method is disclosed. In the method, a composition that comprises dipropylene glycol n-propyl ether (DPnP) and is essentially free of siloxanes or polysulfonic acids is used. The composition contains at least about 80 wt. % DPnP and up to about 15 wt. % of water. The method enables superior stain removal while avoiding excessive fabric shrinkage or soil redeposition.