| 主权项 |
1. An oral and dental hygiene and cleaning agent, including, based on its weight,
a) 0.001 to 5% by weight of copolymer(s), comprising at least one structural unit of formula (A1) and at least one structural unit of formula (A2) whereR1 stands for a (C1 to C18) alkyl group,R2 stands for a (C1 to C6) alkyl group,M stands for a hydrogen atom or an equivalent of a mono- or polyvalent cation; b) 0.001 to 5% by weight of polymer(s) from the group comprising chitosan and chitosan derivatives, c) 1 to 20% by weight of precipitated silicic acid(s) with a specific surface of ≦60 m2/g according to ISO 5794-1, Annex D. |
