| 摘要 |
Two-component composition for producing flexible polyurethane gelcoats The invention relates to the use of a two-component composition which comprises a polyol component, a polyisocyanate component and, as filler, a pyrogenically pre-pared silica which has been hydrophobicized with hexamethyldisilazane (HMDS) and then structurally modified by means of a ball mill, for producing flexible polyurethane gelcoats for epoxy resin and vinyl ester composites.
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