| 摘要 |
Disclosed is a personal care composition comprising: (i) at least one silicone resin selected from the group consisting of the generic formulae: MQ, wherein the ratio of M to Q is about from 0.01/1 to about 3.96/1; MxDyTz, wherein x is about 0.01 to about 3,900,000, y is about 0.035 to about 10,000,000, z is about 0.35 to about 8,000,000; TD, wherein the ratio of T to D is about 0.001/1 to about 73/1; wherein: M is of the formula R1aR2bR3cSiO1/2 wherein each R1 and R2 is independently the same or different monovalent hydrocarbon radical having 1 to about 60 carbon atoms, a hydroxyl, or a halogen; R3 is a hydroxyl, a halogen, or a monovalent hydrocarbon radical having 1 to about 90 carbon atoms, optionally with a heteroatom; and a = 1, 2, or 3; b = 0, 1, or 2; c = 0, 1, or 2; subject to the limitation that a + b + c = 3; Q is of the generic formula SiO4/2; T is of the formula R4SiO3/2 wherein each R4 is independently a hydroxyl, a halogen, or a monovalent hydrocarbon radical having 1 to about 60 carbon atoms, optionally with heteroatoms; D is of the formula R5R6SiO2/2, wherein each R5 and R6 is independently a hydroxyl, a halogen, or a monovalent hydrocarbon radical having 1 to about 60 carbon atoms, optionally with heteroatoms; (ii) at least one sunscreening agent; and (iii) a trlsnoxane spreader, wherein the combination of the at least one resin and spreader is present in an amount effective to increase the SPF of the formulation at least about 10% over the same formulation without the combination of the at least one resin and spreader. The silicone resins are easily formulated, provide a unique non-tacky sensory experience and exhibit advantageous spreadability while permitting the introduction of additional functional benefits such as homogeneity, better organic compatibility, reduced skin irritation and improved skin feel or shine.
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