Patent ID: 8153107
Filing Date: 2012-04-10
Classification: A61K,A61Q,C01B,C09D,C12H

Abstract:
1. A process for the preparation of cosmetic creams and for the production of preparations for protecting the human skin against UV radiation, comprising the steps of: providing an aqueous suspension of anionic colloidal silica having a neutral pH, which is stable over time and comprising individualized particles of colloidal silica which are not bound to one another by siloxane bonds, where said aqueous suspension of anionic colloidal silica comprises individualized particles of colloidal silica which are not bound to one another by siloxane bonds and has a pH in the range from 8.5 to 11, a specific surface in the range from 20 m providing a cosmetic cream or a preparation for protecting the human skin against UV radiation: and contacting said aqueous suspension of anionic colloidal silica having a neutral pH with said cosmetic cream or said preparation for protecting the human skin against UV radiation.