Particles containing absorbed liquids and methods of making...

Details Particles containing absorbed liquids and methods of making... Particles containing absorbed liquids and methods of making...

C - Chemistry, Metallurgy

11

D

C11D 17/00 (2006.01) A01N 25/10 (2006.01) A61K 8/04 (2006.01) A61K 8/81 (2006.01) A61K 8/84 (2006.01) A61Q 5/12 (2006.01) A61Q 13/00 (2006.01) A61Q 17/04 (2006.01) A61Q 19/10 (2006.01) B01J 13/18 (2006.01) C08F 2/20 (2006.01) C11D 3/00 (2006.01) C11D 3/22 (2006.01) C11D 3/37 (2006.01) C11D 3/50 (2006.01)

Patent

CA 2277136

Perfume is absorbed within organic polymer particles which have a further polymer at their exterior. The further polymer incorporates free hydroxyl groups and serves to promote deposition of the particles from a wash or rinse liquor. The further polymer may be part of an encapsulating shell, but more conveniently is used as a stabiliser during polymerisation of the particles. Highly hydrolysed polyvinyl alcohol is preferred.

L'invention concerne l'absorption de parfum par des particules de polymère organique présentant un polymère supplémentaire à l'extérieur. Le polymère supplémentaire contient des groupes hydroxy libres et facilite le dépôt des particules provenant d'une liqueur de lavage ou de rinçage. Le polymère supplémentaire peut faire partie d'un dispositif d'enrobage, mais il est utilisé de manière plus pratique comme stabilisateur pendant la polymérisation des particules. De préférence, on utilise de l'alcool polyvinylique hautement hydrolysé.

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