Conjugate, its preparation and use
AssigneeMerck Patent GmbH
InventorsHerwig Buchholz, Eike Poetsch, Ralf Rosskopf, Ralf Anselmann, Michael Kirschbaum, Frank Pflücker
Life of this patent
Estimating the term…
Abstract
The invention relates to a conjugate which can be used for preparing dermatological and cosmetic compositions. The invention also relates to processes for preparing such conjugate and to its use.
Claims33
A conjugate, comprising an inorganic pigment and an active substance based on organic compounds being covalently bound through a spacer group to the inorganic pigment, characterized in that the spacer group contains an element of the groups 3A, 4A, 3B, 4B, 5B or 6B of the periodic table of elements.
The conjugate according to 1, comprising a particle size of from 1 nm to 250 μm.
A conjugate of the formula
- wherein the structures
- represent the inorganic support.
Dependencies are inferred from the claim text.