Cleaning compositions containing dichloroethylene and six...

C - Chemistry – Metallurgy – 11 – D

Patent

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C11D 7/50 (2006.01) C11D 7/28 (2006.01)

Patent

CA 2474669

Chemical solvating, degreasing, stripping and cleaning agents. The agents are cleaning and solvating mixtures of dichloroethylene and alkoxy-substituted perfluoro compounds that contain six carbon atoms, with optionally highly fluorinated materials to retard flammability and/or other enhancement agents that improve and enhance the properties of the composition to accomplish its desired cleaning or solvating task. These other agents are one or more of the following materials: alcohols, esters, ethers, cyclic ethers, ketones, alkanes, aromatics, amines, siloxanes terpenes, dibasic esters, glycol ethers, pyrollidones, or low- or non-ozone depleting halogenated hydrocarbons. These mixtures are useful in a variety of solvating, vapor degreasing, photoresistant stripping, adhesive removal, aerosol, cold cleaning, and solvent cleaning applications including defluxing, dry-cleaning, degreasing, particle removal, metal and textile cleaning.

L'invention concerne des agents chimiques de solvatation, de dégraissage, de décapage et de nettoyage qui sont des mélanges de nettoyage et de solvatation de composés de dichloroéthylène et de perfluoro à substitution alcoxy contenant 6 atomes de carbone, présentant éventuellement des substances fortement fluorées aux propriétés ignifuges et/ou d'autres agents amplificateurs améliorant les propriétés de la composition afin d'assurer le nettoyage et la solvatation souhaités. Ces autres agents sont sélectionnés parmi un ou plusieurs des éléments suivants : alcools, esters, éthers, éthers cycliques, cétones, alcanes, aromates, amines, siloxanes terpènes, esters dibasiques, éthers de glycol, pyrollidones, ou hydrocarbures halogénés de non appauvrissement de la couche d'ozone ou de faible appauvrissement de la couche d'ozone. Ces mélanges sont utilisés dans une grande variétés d'applications de solvatation, de dégraissage à la vapeur, de décapage de la résine photosensible, d'élimination de l'adhésif, d'aérosol, de nettoyage à froid et de nettoyage au solvant comprenant le défluxage, le nettoyage à sec, le dégraissage, l'élimination de particules, le nettoyage de métal et de textile.

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