Bleaching and dyeing; fluid treatment and chemical modification – Cleaning or laundering – Dry cleaning
Reexamination Certificate
2006-10-06
2009-08-18
Douyon, Lorna M (Department: 1796)
Bleaching and dyeing; fluid treatment and chemical modification
Cleaning or laundering
Dry cleaning
C008S137000, C008S141000, C134S034000, C134S011000, C134S012000
Reexamination Certificate
active
07575604
ABSTRACT:
A drycleaning method is disclosed. The method uses a composition comprising 30 to 90 wt. % of a dipropylene glycol C3-C4alkyl ether, 5 to 65 wt. % of one or more C10-C15hydrocarbons, and 1 to 10 wt. % of water. The method combines acceptable stain removal with faster-than-expected evaporability, particularly at the elevated temperatures used in commercial drycleaning.
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ECOSOLV Drycleaning Fluid Materials Safety Data Sheet, Sep. 23, 2002.
Galick Paul E.
Liepa Mark A.
Liotta, Jr. Frank J.
Douyon Lorna M
Khan Amina
Lyondell Chemical Technology, L.P.
Schuchardt Jonathan L.
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