Color-safe bleach boosters, compositions and laundry methods...

C - Chemistry – Metallurgy – 07 – D

Patent

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Details

C07D 217/10 (2006.01) C07D 498/04 (2006.01) C11D 3/34 (2006.01) C11D 3/39 (2006.01) D06L 3/02 (2006.01)

Patent

CA 2231540

Bleach boosters comprising zwitterionic imines and anionic imine polyions having a net negative charge are disclosed. The bleach boosters increase bleaching effectiveness in lower temperature solutions and demonstrate superior color safety profiles. The bleach boosters are ideally suited for inclusion into bleaching compositions including those with detersive surfactants and enzymes. Also provided is a laundry additive product including zwitterionic imines and anionic imine polyions with a net negative charge as bleach boosters. A method for laundering a fabric employing the bleach boosters of the present invention is also disclosed.

Accélérateur de blanchiment comprenant des imines zwittérioniques et des polyions imine anioniques à charge nette négative. Les accélérateurs de blanchiment augmentent l'efficacité du blanchiment dans des solutions à température plus basse et présentent de meilleurs résultats au niveau du respect des couleurs. Les accélérateurs de blanchiment sont parfaitement adaptés pour être incorporés dans des compositions de blanchiment y compris celles qui contiennent des tensio-actifs détersifs et des enzymes. Cette invention concerne également un additif de lavage comprenant comme accélérateurs de blanchiment des imines zwittérioniques et des polyions imine anioniques à charge nette négative; et un procédé de nettoyage de tissu dans lequel on emploie lesdits accélérateurs de blanchiment.

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