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US 2009/0022998 A1Published application
New gel coat formulation
AssigneeDegussa AG
InventorsJames Toth, Matt Romaine
Life of this patent
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Abstract
New gel coat composition, in particular new marine gel coat compositions, a process for their manufacture as well as their use to coat surfaces of articles exposed to light, water and solvents. The gel coats incorporate a precipitated silica having A BET surface of from 150 to 250 M2/g A SiO2 content of more than or equal to 98.5% by weight A Na2O content of less than or equal to 0.5% by weight.
Claims22
A cured or uncured gel coat composition comprising at least one resin and 0.1 to 15 wt %, based on the total weight of the composition, of at least one precipitated silica having
- A BET surface of from 150 to 250 m2/g
- A SiO2 content of more than or equal to 98.5% by weight
- A Na2O content of less than or equal to 0.5% by weight.
Dependencies are inferred from the claim text.