| 摘要 |
A process for the coating of glass surfaces to prevent the strewing of glass particles in case of bursting, with a transparent duroplastic protective layer of more than 50 microns, which comprises first treating the clean glass surface with an aqueous or alcoholic silane skim coat, drying the treated surface, and then coating the dry surface with a mass of aliphatic or cycloaliphatic diisocyanates or mixtures thereof, or their reaction products with water in a mole ratio of 2:</=1 and a mixture of hydroxyl-group-containing compounds comprising 40-80 wt. % trifunctional, hydroxy-group-containing polyesters made of omega -hydroxy-carboxylic acids or their lactones with at least four C-atoms, with an average molecular weight of 300 to 1400, 15-50 wt. % bifunctional, hydroxy-group-containing polyesters made of omega -hydroxy-carboxylic acids or thier lactones with a least 4 C-atoms with an average molecular weight of 400 to 2000 and 2.5-20 wt. % aliphatic or cycloaliphatic diols or mixtures thereof, with respect to the total quantity of the polyols, an optionally hardening the coated surfaces with additional heat.
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