Coating agents and plastic body with an antigraffiti effect and method for the production thereof

The invention relates to coating agents having an antigraffiti effect. Said coating agents can be obtained according to a method consisting in condensing the organic silicon compounds of general formula (I): R1nSIX4-n, wherein R1 represents a group comprising 1-20 carbon atoms, X represents an alkoxy radical having 1-20 carbon atoms or halogen and n represents an even number between 0-3. The different radicals X or R1 can be identical or different and/or the precondensates can be obtained from said components. At least 50 wt. % of the silicon compounds, in relation to the total weight of the used silicon compounds, is represented by the formula R1SiX3, wherein R1 and X have the above-cited meaning, in order to form polysiloxanes until the ratio of signals R1SiO(OH) and signals R1SiO1,5 measured by NMR-spectroscopy ranges from 0.6-4, and by adding compounds of formula (II) (R'')uSi(R')t(OR)(4-t-u) to said polysiloxane mixture, wherein R represents a group comprising 1-20 carbon atoms having at least 3 fluoro atoms. U is 1 or 2 and t is 0 or 1, R and R' are identical or different and represent a group comprising 1-20 carbon atoms. The also relates to plastic bodies which have coating which can be obtained by means of the coating agents.