Compositions – Electrolytes for electrical devices
Patent
1993-01-13
1993-12-14
Lieberman, Paul
Compositions
Electrolytes for electrical devices
252 89, 252 86, 252164, 25217425, 252DIG19, 252305, C11D 1700, C09K 330, C09K 322, D06M 1300
Patent
active
052699587
ABSTRACT:
A self-pressurized spot dry cleaning composition contains a combination of (a) from about 20% to about 70% by weight of the total composition of dimethyl ether; (b) from about 1% to about 15% by weight of the total composition of water; (c) from about 1% to about 15% by weight of the total composition of a cosolvent for (a) and (b); (d) from about 1% to about 10% by weight of the total composition of a particulate absorbent capable of absorbing a stain from the fabric onto which the composition is sprayed such as fumed or pyrogenic silica; and (e) from about 20% to about 70% by weight of the total composition of dimethoxymethane. Such a spot dry cleaning shampoo composition not only possesses good oil-based stain removal from fabrics such as garments and carpets, but also possesses reduced flammability and static generation characteristics relative to aerosol spot dry compositions using lower aliphatic hydrocarbon propellants without a need for chlorinated or fluorinated solvents or propellants.
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"Roundtable Discussion: Du Pont talks about its DME propellant, Part I," Aerosol Age, May, 1982, pp. 20ff.
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Lieberman Paul
S. C. Johnson & Son Inc.
Tierney Michael P.
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