申请人:THE PROCTER & GAMBLE COMPANY
公开号:EP0251398A2
公开(公告)日:1988-01-07
The present invention relates to novel chromophore-containing compounds useful as sunscreen agents which have the ability to absorb both UVA and UVB wavelength radiation. These compounds comprise a specific type of UVA-absorbing chromophore covalently bonded to a specific type of UVB-absorbing chromophore. The chromophore moieties are covalently bonded together such that the electron systems of these moieties are directly coupled to thereby form a new chromophore.
The present invention further relates to sunscreen compositions containing the hereinbefore described type of sunscreen agents. Furthermore, the present invention relates to methods for protecting the skin of humans or lower animals from the effects of UVA and UVB wavelength radiation. This method comprises topically applying to the skin an effective coating of a sunscreen composition of the present invention.
本发明涉及可用作防晒剂的新型含发色团化合物,这些化合物具有吸收 UVA 和 UVB 波长辐射的能力。这些化合物由一种特定类型的吸收 UVA 的发色团与一种特定类型的吸收 UVB 的发色团共价键合而成。发色团分子共价键合在一起,使这些分子的电子系统直接耦合,从而形成新的发色团。
本发明还涉及含有上述类型防晒剂的防晒组合物。此外,本发明还涉及保护人类或低等动物皮肤免受 UVA 和 UVB 波长辐射影响的方法。该方法包括在皮肤上局部涂抹本发明防晒组合物的有效涂层。