Lyondell Chemical Technology, L.p.

Equistar Chemicals, LP

Ellen S Lenz

Paul E Galick

Larry W Arndt

David R Kinney

Shao-Hua Guo

David W Leyshon

Lau S Yang

Krishnan Viswanathan

A method is disclosed for upgrading drip oil comprising subjecting the drip oil to multiple distillation steps to form a stream rich in aromatics and a separate stream rich in dicyclopentadiene.

Upgrading drip oil

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.

Drycleaning method using dipropylene glycol n-propyl ether

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West Chester, PA, United States of America

Ellen S Lenz