Personal care compositions
AssigneeISP Investments Inc.
InventorsHerbert Ulmer, Timothy Gillece, John Katirgis
Life of this patent
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Abstract
Personal care compositions, particularly hair care products, include a polymer mixture made from (A) a derivatized polymer of maleic anhydride having defined repeat units of a monomer (e.g. α-olefin) maleic anhydride alkyl half-ester or full acid, maleamic acid and maleimide, and (B) a compound or polymer having a carboxylic acid functionality. These compositions exhibit excellent high humidity curl retention properties, as well as an advantageous blend of toughness and cohesiveness, and a strong affinity to natural fibers such as keratin-based fibers, e.g. hair, skin, or textiles, such as cotton or wool; and they are also water-soluble and water-resistant.
Claims18
A personal care composition which includes a mixture of (A), a polymer characterized structurally by repeat units of (a) a monomer-maleic anhydride alkyl half-ester or full acid, (b) maleamic acid, and (c) maleimide, of the formulas:
- 3
- where:
- R, R1, R2 and R3 are selected from H, alkyl, alkoxy, cycloalkyl, aryl, ester, acid, hydroxy, hydroxyalkyl, amido, amino, lactam, chloro, fluoro, halo and silyl, and R4 is H or alkyl;
- and
- R′ is a derivatizing group selected from X, a hydrophobic amine;
- Y, a hydrophilic amine;
- and Z a polyether amine;
- and suitable mixtures thereof;
- wherein:
- x, y and z are present, in mole %, of 0-99.9, 0-50 and 0.1-100, respectively;
- and X, Y and Z are present in mole ratios of 0-50:0-100:0-20,
- and (B) a compound or polymer having a carboxylic acid functionality.
Dependencies are inferred from the claim text.