Personal Care Composition
A personal care composition comprising an alkylene oxide-lactone based polymer, the polymer comprising an alkylene oxide and a lactone in copolymerized form, is useful for treating hair and skin.
1 . A personal care composition comprising an alkylene oxide-lactone based polymer, wherein the alkylene oxide-lactone based polymer comprises in randomly copolymerized form
A. an alkylene oxide of the formula
in which each R, individually, is hydrogen, a C 1 -C 12 alkyl, C 1 -C 12 haloalkyl or C 1 -C 12 alkoxy group, or in which the two R substituents together with both vicinal epoxy carbons form a saturated or monoethylenically unsaturated cycloaliphatic hydrocarbon ring; and
B. a lactone of the formula
in which n is at least two and each R′ is independently hydrogen, C 1 -C 8 alkyl, cyclohexyl or C 1 -C 9 alkoxy; with the proviso that at least four R′ are hydrogen.
2 . The personal care composition of claim 1 wherein the alkylene oxide-lactone based polymer comprises an alkylene oxide of formula I and a lactone of formula II in randomly copolymerized form and the polymer is capped with a block of polymerized alkylene oxide of Formula I.
3 . The personal care composition of claim 1 wherein the alkylene oxide in the alkylene oxide-lactone based polymer is ethylene oxide, propylene oxide or a butylene oxide.
4 . The personal care composition of claim 2 wherein the alkylene oxide-lactone based polymer is capped with a block of polymerized ethylene oxide.
5 . The personal care composition of claim 1 wherein the lactone in the alkylene oxide-lactone based polymer is an ε-caprolactone.
6 . The personal care composition of claim 5 wherein the ε-caprolactone is of the formula
wherein each R″, independently, is hydrogen or a C 1 -C 4 alkyl or C 1 -C 4 alkoxy group, with the proviso that no more than three R″ substituents are groups other than hydrogen.
7 . The personal care composition of claim 6 wherein the ε-caprolactone is unsubstituted ε-caprolactone.
8 . The personal care composition of claim 1 comprising from 0.05 to 5 percent of the alkylene oxide-lactone based polymer, based on the total weight of the composition.
9 . The personal care composition of claim 1 additionally comprising a cationic polymer.
10 . The personal care composition of claim 9 comprising from 0.05 to 2 percent of the cationic polymer, based on the total weight of the composition.
11 . The personal care composition of claim 1 additionally comprising a silicone.
12 . The personal care composition of claim 1 in the form of a hair or skin cleansing composition.
13 . The personal care composition of Claim 1 in the form of a leave-on skin care or hair care composition.
14 . A method of treating hair or skin by administering the personal care composition of claim 1 to the hair or skin.
15 . A method of producing a skin care composition with improved moisturized or soft feel on skin wherein an alkylene oxide-lactone based polymer is incorporated in the skin care composition and the alkylene oxide-lactone based polymer comprises in copolymerized form
A. an alkylene oxide of the formula
in which each R, individually, is hydrogen, a C 1 -C 12 alkyl, C 1 -C 12 haloalkyl or C 1 -C 12 alkoxy group, or in which the two R substituents together with both vicinal epoxy carbons form a saturated or monoethylenically unsaturated cycloaliphatic hydrocarbon ring; and
B. a lactone of the formula
in which n is at least two and each R′ is independently hydrogen, C 1 -C 8 alkyl, cyclohexyl or C 1 -C 8 alkoxy; with the proviso that at least four R′ are hydrogen.
16 . The method of claim 15 of producing a leave-on skin care composition with an improved moisturizing and skin barrier effect.
17 . The method of claim 15 wherein the alkylene oxide-lactone based polymer set forth in claim 1 is incorporated in the skin care composition.
18 . A method of producing a hair care composition that exhibits enhanced deposition of a benefit agent on hair, is useful for controlling the volume of hair or provides improved comb-ability to hair wherein an alkylene oxide-lactone based polymer is incorporated in the hair care composition and the alkylene oxide-lactone based polymer comprises in copolymerized form
A. an alkylene oxide of the formula
in which each R, individually, is hydrogen, a C 1 -C 12 alkyl, C 1 -C 12 haloalkyl or C 1 -C 12 alkoxy group, or in which the two R substituents together with both vicinal epoxy carbons form a saturated or monoethylenically unsaturated cycloaliphatic hydrocarbon ring; and
B. a lactone of the formula
in which n is at least two and each R′ is independently hydrogen, C 1 -C 8 alkyl, cyclohexyl or C 1 -C 8 alkoxy; with the proviso that at least four R′ are hydrogen.
19 . The method of claim 18 wherein the alkylene oxide-lactone based polymer set forth in claim 1 is incorporated in the hair care composition.