Personal care composition
AssigneeUnion Carbide Chemicals & Plastics Technology Corporation
InventorsXiaodong Zhang, Russell Lowell Kreeger, Tatiana Victorovna Drovetskaya
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Abstract
A personal care composition comprising a cationically modified cellulose ether, wherein the cellulose ether comprises from 0.5 to 4 moles of an ether substituent per mole of anhydroglucose repeat unit and the cellulose ether further substituted with a cationic substituent of the formula (I) wherein R1, R2 and R3 each independently are CH3 or C2H5, R4 is CH2—CHOH—CH2 or CH2CH2, Az− is an anion, and z is 1, 2 or 3, and the cellulose ether comprises from 1.15 to 1.44 percent of cationic nitrogen, based on the total weight of the cellulose ether. The cationically modified cellulose ethers which comprise from 6,000 to 15,000 anhydroglucose repeat units are novel.
Claims8
A personal care composition comprising:
- a water-insoluble active ingredient, and
- a cationically modified hydroxyethyl cellulose, wherein
- the hydroxyethyl cellulose comprises from 1.5 to 2.5 moles of an hydroxyethyl substituent per mole of anhydroglucose repeat unit, and
- the hydroxyethyl cellulose is further substituted with a cationic substituent of the formula I
- wherein
- R1, R2 and R3 each independently are CH3 or C2H5,
- R4 is CH2—CHOH—CH2— or CH2CH2—,
- Az− is an anion, and z is 1, 2 or 3, and
- the hydroxyethyl cellulose comprises from 1.15 to 1.44 percent of cationic nitrogen, based on the total weight of the hydroxyethyl cellulose, and
- wherein the hydroxyethyl cellulose has 6,000 to 15,000 anhydroglucose repeat units and is not substituted with hydrophobic alkyl or arylalkyl group having 8 to 24 carbon atoms.
A personal care composition comprising:
- a cationically modified hydroxyethyl cellulose wherein
- the hydroxyethyl cellulose comprises from 1.5 to 2.5 moles of a hydroxyethyl substituent per mole of anhydroglucose repean unit, and has 7,000 to 10,000 anhydroglucose repeat units, and
- the hydroxyethyl cellulose is further substituted with cationic substituent of formula I
- wherein
- R1, R2 and R3 each are CH3,
- R4 is CH2—CHOH—CH2—,
- Az− is a halide, and z is 1, and
- the hydroxyethyl cellulose comprises from 1.20 to 1.40 percent of cationic nitrogen, based on the total weight of the hydroxyethyl cellulose, wherein the hydroxyethyl cellulose is not substituted with a hydrophobic alkyl or arylalkyl group having 8 to 24 carbon atoms, and
- a water-insoluble active ingredient selected from a silicone oil or a plant oil.
Dependencies are inferred from the claim text.