Laundry detergent compositions containing graft copolymers

C - Chemistry – Metallurgy – 08 – F

Patent

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Details

C08F 283/06 (2006.01) C08F 8/44 (2006.01) C08F 290/06 (2006.01) C11D 3/37 (2006.01)

Patent

CA 2506819

Graft copolymers providing soil release benefits in laundry detergent compositions contain backbone units derived from an ethylenically unsaturated monomer, hydrophilic uncharged side chains, and cationically chargeable or charged side chains containing a tertiary or quaternary nitrogen atom. Preferred copolymers have a methacrylate backbone with polyethylene oxide and 2-dimethylaminoethyl methacrylate (DMAEMA) side chains. The graft copolymers may be prepared by radical polymerisation.

La présente invention concerne des copolymères greffés qui donnent à des compositions de lessives détergentes des propriétés qui facilitent le lavage. Lesdits copolymères comprennent des unités de chaîne principale dérivées d'un monomère éthyléniquement insaturé, des chaînes latérales neutres hydrophiles, et des chaînes latérales chargées ou qui peuvent être chargées par des cations et contenant un atome d'azote tertiaire ou quaternaire. Les copolymères préférés ont une chaîne principale méthacrylate avec un oxyde de polyéthylène et des chaînes latérales de 2-diméthylaminoéthyl méthacrylate (DMAEMA). Les copolymères greffés peuvent être préparés par polymérisation radicalaire.

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