首页>
外国专利>
Inorganic UV filter materials such as titanium dioxide are mixed with radically-initiated quaternized or protonated solution copolymers to improve incorporation into cosmetic or dermatological compositions
Inorganic UV filter materials such as titanium dioxide are mixed with radically-initiated quaternized or protonated solution copolymers to improve incorporation into cosmetic or dermatological compositions
An inorganic UV filter material is mixed with a radically-initiated solution copolymer containing quaternized or protonated groups. A mixture comprises: (A) an inorganic UV filter material; and (B) a radically-initiated solution copolymer obtained from the following monomer mixture (by wt.), with the copolymer obtained being at least partly quaternized or protonated when monomer (i) is not (or only partly) quaternized: (i) an N-vinylimidazole or diallylamine, optionally partly or completely quaternized (0.01-99.99%); (ii) a neutral or basic monomer other than (i) (0.01-99.99%); (iii) an unsaturated acid or anhydride (0-50%); (iv) a radically-polymerizable monomer other than (i) - (iii) (0-50%); and (v) a crosslinking monomer with -2 ethylenically-unsaturated non-conjugated double bonds.
展开▼
