Color migration inhibitors for washing and cleaning agents

Details Color migration inhibitors for washing and cleaning agents Color migration inhibitors for washing and cleaning agents

C - Chemistry, Metallurgy

11

D

C11D 3/37 (2006.01) C11D 3/00 (2006.01)

Patent

CA 2193127

Finely powdered, water-insoluble, cross-linked polymers contain polymerised units of 1-vinyl pyrrolidone and/or 1-vinyl imidazoles having the formula (I), in which R, R1 and R2 are different or the same and stand for H, C1-C4 alkyl or phenyl, or polymerised units of 4-vinyl pyridin-N-oxide. At least 90 % by weight of these polymers have a particle size from 0.1 to 500 µm. These polymers are useful as additives for washing and cleaning agents to prevent colours from migrating during washing. Also disclosed are washing and cleaning agents based on surfactants and if required builders and other usual components, said washing and cleaning agents containing from 0.1 to 10 % by weight of the disclosed water-insoluble, cross-linked polymers.

Des polymères réticulés finement pulvérisés insolubles dans l'eau contiennent des unités polymérisées de pyrrolidone de vinyle-1 et/ou d'imidazoles de vinyle-1 ayant la formule (I), dans laquelle R, R?1¿ et R?2¿ sont identiques ou différents et désignent H, alcoyle C¿1?-C¿4? ou phényle, ou des unités polymérisées d'oxyde de pyridine-N de vinyle-4, au moins 90 % en poids des polymères ayant des particules d'une grosseur comprise entre 0,1 et 500 µm. Ces polymères sont utiles comme additifs pour produits de lavage et de nettoyage afin d'empêcher les couleurs de déteindre pendant le lavage. L'invention concerne également des produits de lavage et de nettoyage à base d'agents tensioactifs et le cas échéant d'adjuvants, ainsi que d'autres constituants usuels, qui contiennent entre 0,1 et 10 % en poids de ces polymères réticulés insolubles dans l'eau.

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