Abstract
Cosmetric materials, e.g., sunscreen agents are encapsulated by means of a compound of the formula (I) where X is O or NRs; EWG is an electron-withdrawing group; R1, R2, R3 Rs are equal to an H, alykl, cycloalkyl, aryl, or heterocyclic group; or R1, R2 and Rs or R1, R2 and R3 together form a hetero cyclic group; and wherein at least one NH or NH2 group, attached to an electron-attracting atom or to an atom that is connected to electron-attracting atom or group such as oxygen, nitrogen and sulphur, is present.
Original language | English |
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Patent number | WO/2006/061124 |
Priority date | 10/12/04 |
Filing date | 30/11/05 |
Publication status | Published - 15 Jun 2006 |
Externally published | Yes |