Preparation of functionalized cationic polymers & their application in personal care
AssigneeBASF SE
InventorsZhiqiang Song, John Jennings, Jianwen Mao
Life of this patent
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Abstract
Water-soluble functionalized cationic copolymers obtainable by a process which comprises reacting a cationic base polymer which contains amino groups with at least one functional compound reactive to at least a part of the amino groups on the base polymer, are useful in personal care and cosmetic formulations.
Claims25
A functionalized cationic polymer obtainable by reacting a cationic base polymer, which may be linear or branched and is optionally crosslinked, and contains amino groups, with at least one functional compound, which may be hydrophobic or hydrophilic, anionic, cationic, amphoteric or nonionic, that can react with at least a part of the amino groups in the base polymer, with the proviso that the functional compound either does not contain hindered amine nitroxide, hydroxylamine or hydroxylammonium salt groups or, if such groups are present, at least a part of the amino-functional groups in the base polymer are also reacted, simultaneously or sequentially in any order, with at least one functional compound that does not contain hindered amine nitroxide, hydroxylamine or hydroxylammonium salt groups.
A method of preparing a functional or hydrophobically modified cationic polymer, which comprises:
- reacting a cationic base polymer, which may be linear, branched or crosslinked, and contains amino groups, with at least one functional compound, which may be hydrophobic or hydrophilic, anionic, cationic, amphoteric or nonionic, that can react with at least a part of the amino groups in the base polymer, with the proviso that the functional compound either does not contain hindered amine nitroxide, hydroxylamine or hydroxylammonium salt groups or, if such groups are present, at least a part of the amino-functional groups in the base polymer are also reacted, simultaneously or sequentially in any order, with at least one functional compound that does not contain hindered amine nitroxide, hydroxylamine or hydroxylammonium salt groups.
A personal care or cosmetic composition comprising at least one water-soluble functionalized cationic polymer obtainable by reacting a cationic base polymer, which may be linear, branched or crosslinked, and contains amino groups, with at least one functional compound which may be hydrophobic or hydrophilic, anionic, cationic, amphoteric or nonionic, that can react with at least a part of the amino groups on the base polymer, at least one cosmetically-functional agent, and at least one cosmetically tolerable adjuvant.
Dependencies are inferred from the claim text.