Composition to impart benefit agents to anionic substrates and methods of its use
OwnerAllwyn Colaco, Joel Coret +3inventors
InventorsAllwyn Colaco, Joel Coret, Saurabh Desai, Shailendra Singh, Robert Bianchini
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Abstract
This invention relates to compositions containing pigments or other benefit agents in particulate form may be combined with a quaternary ammonium compound that can effectuate adsorption to anionic substrates, methods of making such compositions and methods of their use.
Claims26
A composition for delivering a benefit agent to an anionic substrate, comprising:
- a) a particulate benefit agent;
- and
- b) a quaternary ammonium compound according to formula (1)
- wherein
- R1, R2, and R3 are straight or branched carbon chains comprising alkyl or alkenyl groups having from about 8 to about 36 carbon atoms and R4 is a lower alkyl chain having from about 1 to about 4 carbon atoms or a lower alcohol having from about 1 to about 4 carbon atoms.
- R1 and R2 are identical or different straight or branched alkyl or alkenyl chains having from about 8 to about 36 carbon atoms, and R3 and R4, independently of one another, are identical or different and are lower alkyl chain having from about 1 to about 4 carbon atoms or a lower alcohol having from about 1 to about 4 carbon atoms;
- and
- X— is an anion selected from the group consisting of halogens and oxo acids.
A composition for depositing a benefit agent on a negatively-charged substrate comprising:
- (a) a positively-charged compound and an HLB of less than about 10;
- and
- (b) a benefit agent dispersed substantially homogeneously therein.
A method of depositing a benefit agent on a negatively-charged substrate comprising contacting said negatively-charged substrate with a composition comprising a quaternary ammonium compound according to formula (1)
- wherein
- R1, R2, and R3 are straight or branched carbon chains that may be alkyl or alkenyl groups having from about 8 to about 36 carbon atoms and R4 is a lower alkyl chain having from about 1 to about 4 carbon atoms or a lower alcohol having from about 1 to about 4 carbon atoms.
- R1 and R2 may both be identical or different straight or branched alkyl or alkenyl chains having from about 8 to about 36 carbon atoms, and R3 and R4, independently of one another, may be identical or different and are lower alkyl chain having from about 1 to about 4 carbon atoms or a lower alcohol having from about 1 to about 4 carbon atoms;
- and
- X— is an anion selected from the group consisting of halogens and oxo acids.
Dependencies are inferred from the claim text.