A - Human Necessities – 61 – K
Patent
A - Human Necessities
61
K
A61K 8/898 (2006.01) A61Q 5/00 (2006.01) A61Q 19/10 (2006.01)
Patent
CA 2719305
The invention relates to a delivery system for hydrophobic benefit agents to keratinous substrates. The delivery system comprises amphiphilic block copolymers, and a hydrophobic benefit agent, which amphiphilic block copolymers comprise a siloxane segment and a cationic segment. The invention also relates to methods of delivering the hydrophobic benefit agents to the keratinous substrate. Furthermore, the delivery systems and methods of delivery are effective in retaining a hydrophobic bene-fit agents on the keratinous substrate after rinsing. The delivery systems are especially suitable in personal cleansing, body wash or rinse off lotion compositions and comprise certain amphiphilic polymers which effectively deposit the hydrophobic benefit agents onto a keratinous substrate, such as skin or hair.
Linvention concerne un système de délivrance pour des agents bénéfiques hydrophobes sur des substrats kératiniques. Le système de délivrance comprend des copolymères séquencés amphiphiles et un agent bénéfique hydrophobe, lesdits copolymères séquencés amphiphiles comprenant un segment siloxane et un segment cationique. Linvention concerne également des procédés de délivrance des agents bénéfiques hydrophobes sur le substrat kératinique. Par ailleurs, les systèmes de délivrance et les procédés de délivrance sont efficaces pour retenir les agents bénéfiques hydrophobes sur le substrat kératinique après le rinçage. Les systèmes de délivrance sont particulièrement appropriés pour lhygiène personnelle, le lavage corporel ou le rinçage de compositions de lotion, et comprennent certains polymères amphiphiles qui déposent efficacement les agents bénéfiques hydrophobes sur un substrat kératinique, tel que la peau ou les cheveux.
Dueva-Koganov Olga V.
Koroskenyi Balint
Zhou Xian-Zhi
Basf Se
Robic
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