Single-phase composition containing a perfluorinated oil and one or more surfactant(s), useful as an excipient for cosmetic and dermatologic formulations, as well as for biomedical applications
申请人:ENIRICERCHE S.p.A.
公开号:EP0296661A2
公开(公告)日:1988-12-28
A single-phase, either isotropic or anisotropic formulation is disclosed,which contains perfluorinated oil and one or more surfactant(s), is useful as an excipient for cosmetic and dermatologic formulations and is characterized in that at least one surfactant is selected from those having the following general formula:
wherein:
RF is an F-(CF₂-CF₂) i group;
X is a group selected from:
-(CH₂-O)K-; and -(CH₂-S)K-;
wherein RI is a (C₁-C₄)-alkyl;
Y is a group selected from:
NH₂(RII)₂ and N(RII)₄;
wherein RII is a hydrogen atom, or a group selected from -CH₂-CH₂-OH and (C₁-C₄)-alkyl;
i is an integer comprised within the range of from 3 to 8;
j is zero or 1;
K is 2.l;
l is an integer comprised within the range of from 1 to 10;
m is 1 or 2.
Such composition is spontaneously formed when the components are simply placed into contact with one another.
In particular, in case of the isotropic form, the composition is a fluid, clear and stable composition, with particle size smaller than 400 Å , containing:
(a) from 1 to 50% by weight of the perfluorinated oil;
(b) from 1 to 50% by weight of water;
(c) from 8 to 60% by weight of at least one surfactant selected from the above defined surfactants;
(d) from 6 to 38% by weight of a co-surfactant, selected from (C₃-C₇)-aliphatic alcohols.
In case of the anisotropic form, the composition has a high viscosity, and contains:
(a) from 1 to 50% by weight of the perfluorinated oil;
(b) from 1 to 80% by weight of water;
(c) from 1 to 40% by weight of at least one surfactant selected from the above defined surfactants;
(d) from 0 to 19% by weight of a co-surfactant, selected from (C₃-C₇)-aliphatic alcohols.
Furthermore, in case of the isotropic composition this latter finds also use in the biomedical sector.
本发明公开了一种各向同性或各向异性的单相制剂,它含有全氟油和一种或多种表面活性剂,可用作化妆品和皮肤科制剂的赋形剂,其特征在于至少一种表面活性剂选自具有以下通式的表面活性剂:
其中
RF 是 F-(CF₂-CF₂) i 基团;
X 是选自以下的基团
-(CH₂-O)K-;和-(CH₂-S)K-;
其中 RI 是 (C₁-C₄)- 烷基;
Y 是选自以下各项的基团
NH₂(RII)₂ 和 N(RII)₄;
其中 RII 是氢原子,或选自-CH₂-CH₂-OH 和 (C₁-C₄)- 烷基的基团;
i 是 3 至 8 之间的整数;
j 为 0 或 1;
K 为 2.l;
l 是 1-10 之间的整数;
m 是 1 或 2。
当各组分简单地相互接触时,就会自发地形成这种组合物。
特别是在各向同性的情况下,这种组合物是一种流动、透明和稳定的组合物,其粒径小于 400 Å,含有以下成分: 1:
(a) 1%至 50%(按重量计)的全氟油;
(b) 1 至 50%(按重量计)的水;
(c) 至少一种选自上述表面活性剂的表面活性剂,重量百分比为 8-60%;
(d) 6-38%(重量)的助表面活性剂,选自(C₃-C₇)-脂肪醇。
在各向异性的情况下,组合物具有较高的粘度,并包含以下成分:
(a) 1%至 50%(按重量计)的全氟油;
(b) 1%至 80%(按重量计)的水
(c) 至少一种选自上述表面活性剂的表面活性剂(按重量计)(1-40%);
(d) 0-19%(重量)的助表面活性剂,选自(C₃-C₇)-脂肪醇。
此外,对于各向同性组合物,后者也可用于生物医学领域。