COATING AGENTS AND PLASTIC BODY WITH AN ANTIGRAFFIC EFFECT AND METHOD FOR THE PRODUCTION THEREOF

摘要

: 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): RnSIX4-n, wherein R 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 R 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 RSiX3, wherein R and X have the above-cited meaning, in order to form polysiloxanes until the ratio of signals RSiO(OH) and signals RSi01,5 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. No. of Pages : 44 No. of Claims : 26