Self-pressurized aerosol spot dry cleaning compositions

Details Self-pressurized aerosol spot dry cleaning compositions Self-pressurized aerosol spot dry cleaning compositions

C - Chemistry, Metallurgy

11

D

C11D 17/00 (2006.01) C09K 3/30 (2006.01) C11D 7/00 (2006.01) C11D 7/02 (2006.01) C11D 7/50 (2006.01) D06L 1/02 (2006.01) D06M 13/00 (2006.01)

Patent

CA 2153599

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 dimethroxymethane. 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.

Une composition pour nettoyage à sec localisé, avec auto-pressurisation, renferme en pourcentages en poids par rapport à la composition totale : a) environ 20-70 % d'oxyde de diméthyle; b) environ 1-15 % d'eau; c) environ 1-15 % d'un cosolvant pour a et b; d) environ 1-10 % d'un absorbant particulaire, comme la silice sublimée ou pyrogène, pouvant absorber une tache sur un tissu traité par pulvérisation avec cet absorbant; e) environ 20-70 % de diméthoxyméthane. Une composition-shampoing pour nettoyage à sec localisé de ce type non seulement offre une bonne capacité d'élimination des taches huileuses sur les tissus, comme les vêtements ou les tapis, mais possède également une inflammabilité réduite et produit moins d'électricité statique, comparativement aux compositions aérosols pour nettoyage à sec localisé, utilisant des propulseurs à base de composés aliphatiques inférieurs, et ce sans nécessiter des solvants ou des propulseurs chlorés ou fluorés.

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