A matting agent and polyurethane coating compositions therewith
AssigneeGrace GmbH
InventorsMatthias Märcz, Horst Herrig
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Abstract
The present technology provides a matting agent for a polyurethane coating composition, which comprises porous silica particles having a ratio of BET surface area to pore volume (SA:PV) of 160 m2/mL or less. The technology also provides a polyurethane coating composition and cured coatings thereof. The compositions include the matting agent, a polyol, a cross-linking agent, and a catalyst.
Claims21
-38. (canceled)
A polyurethane coating composition comprising a matting agent, the matting agent comprising porous silica particles having a ratio of BET surface area to pore volume (SA:PV) of 160 m2/mL or less.
A matting agent for a polyurethane coating composition comprising porous silica particles having a ratio of BET surface area to pore volume (SA:PV) of 160 m2/mL or less.
Dependencies are inferred from the claim text.