Lyondell Chemical Technology, L.p.

David R Kinney

Paul E Galick

Larry W Arndt

Ellen S Lenz

Shao-Hua Guo

A drycleaning method is disclosed. In the method, a composition that comprises at least about 85 wt. % dipropylene glycol dimethyl ether (DMM) is used. The limited solubility of water in DMM is ideal for drycleaning. The method provides good stain removal and fast drying while avoiding excessive fabric shrinkage or soil redeposition.

Drycleaning method using dipropylene glycol dimethyl ether

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.

Growing community of inventors

The Woodlands, TX, United States of America

David R Kinney