Cleaning textiles

Details Cleaning textiles Cleaning textiles

D - Textiles, Paper

06

L

D06L 1/00 (2006.01)

Patent

CA 2488569

Cleaning media based on liquid C02 and including from 0.01 to 5 % by weight of the formulation of a cleaning additive which is at least one C6 to C24 hydrocarbyl ester of a multi-carboxylic acid can be used in dry cleaning of textiles. Desirable cleaning additives are of the formula (1): R1(C02 R2 )n where R1 is the residue of a C1 to C10 hydrocarbyl group from which n hydrogen atoms have been removed, R2 is a C6 to C24 hydrocarbyl, particularly alkyl or alkenyl, group; and n is from 2 to 5; particularly C12 to C18 adipate esters.

Cette invention a trait à des milieux de nettoyage à base de CO¿2? en phase liquide et comportant de 0,01 à 5 % en poids de la formulation d'agent d'addition de nettoyage, en l'occurrence, un ester d'hydrocarbyle ayant de 6 à 24 atomes de carbone ou un acide multicarboxylique qu'il est possible d'utiliser pour le nettoyage à sec de textiles. Les agents d'addition de nettoyage souhaitables correspondent à la formule (I) : R?1¿(C0¿2? R?2¿ )¿n? où R?1¿ représente un reste de groupe hydrocarbyle dont n atomes d'hydrogène ont été enlevés, R?2¿ représente un groupe hydrocarbyle ayant de 6 à 24 atomes de carbone, notamment alkyle ou alcényle, la valeur de n étant comprise entre 2 et 5, et sont, plus particulièrement des esters adipate.

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