Patent ID: 8450229
Filing Date: 2013-05-28
Classification: B82Y,C04B

Abstract:
1. A mix, comprising a) at least one very finely divided, aggregated, pyrogenic silicon dioxide powder having an average particle diameter of from 2 to 100 nm and a BET surface area of at least 30 m b) magnesium oxide having an average particle diameter of from >0.5 μm to 30 mm, c) at least one synthetic resin as binder, and d) at least one metallic antioxidant having an average particle diameter of from >0.5 to 250 μm; wherein the at least one very finely divided, aggregated, pyrogenic silicon dioxide powder is present in the mix in an amount of from 0.01 to 5 percent by mass, based on the magnesium oxide.