Abstract: The invention relates to a hydrophilic coating for surfaces containing one or several polysilazanes and an ionic reagent or mixtures of ionic reagents. The polysilazane is, in particular, a polysilazane of the formula —(SiR?R?—NR??)n— (1),wherein R?, R?, R?? can be identical or different and are either hydrogen or organic or metalorganic radicals, n is measured in such a manner that the polysilazane has a numerical average molecular weight ranging from 150 to 150 000 g/mol. In a preferred embodiment, the polysilazane is perhydropolysilazane (R?=R?=R??=H). The ionic reagent is, preferably, a salt of a carboxylic acid, in particular of a hydroxycarboxylic acid, or a cationic or anionic silane, or an oligomer or polymer. The invention also relates to a method for the production of the above-mentioned hydrophilic coatings.

Abstract: The invention concerns a synthesis method for an oligosilazane-containing condensation product comprising the following step: conversion of oligosilazane composition with an average molecular weight of no more than 1000 g/mol, with a dialk(en)ylamino compound of the following formula (I) A[N(R4)2]m  (I) in which A is at least one element chosen from B, Al, Ti, Zr, and Hf, R4 is an alkyl group or alkenyl group and m is the valence of element A, in which the reaction is run so that an average of 1.6-2.