Bar compositions containing solid amphoteric surfactants

Details Bar compositions containing solid amphoteric surfactants Bar compositions containing solid amphoteric surfactants

A - Human Necessities

61

K

A61K 8/02 (2006.01) A61K 8/36 (2006.01) A61K 8/40 (2006.01) A61K 8/46 (2006.01) A61Q 19/10 (2006.01) C11D 1/94 (2006.01) C11D 17/00 (2006.01)

Patent

CA 2359196

The present invention relates to personal wash bar compositions, particularly compositions comprising: (1) lathering anionic surfactants (e.g., sodium acyl isethionate or fatty acid soap); (2) specific solid, less hygroscopic amphoteric surfactants (e.g., disodium N-lauryl iminodipropionate). The invention relates to the incorporation of significant levels of said solid amphoteric surfactant into the specific bar compositions to achieve superior skin mildness and bar user properties. The invention especially addresses the advantages of using solid, less hygroscopic amphoteric surfactants to reduce the processing difficulties in extrusion and modified extrusion processes.

La présente invention concerne des compositions de lavage pour hygiène personnelle sous forme de pains. Ces compositions comprennent (1) des tensioactifs anioniques moussants (tel qu'un acyle isethionate de sodium ou savon d'acide gras) ; (2) des tensioactifs amphotères solides spécifiques moins hygroscopiques (tels que disodium N-lauryle iminodipropionate). L'invention concerne l'incorporation de niveaux significatifs de ce tensioactif amphotère solide dans les compositions de pain spécifiques, en vue d'obtenir une douceur de peau et des propriétés supérieures pour l'utilisateur. L'invention traite notamment des avantages de l'utilisation de tensioactifs amphotères solides spécifiques moins hygroscopiques afin de réduire les difficultés de traitement dans les procédés d'extrusion et d'extrusion modifiée.

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