Patents

Powder Clearcoat Varnish

August 10, 2005

Patent No. U.S. 6,512,026 B1
BASF Coatings AG has been granted a patent for novel powder clearcoat materials and novel powder clearcoat slurries. They are comprised of at least one epoxide-containing binder containing from 0.5 to 40% by weight, based on the binder, of copolymerized glycidyl-containing monomers, and at least one tris(alkoxy-carbonylamino)triazine and at least one polycarboxylic acid, in particular a straight-chain dicarboxylic acid, and/or a carboxy-functional polyester as crosslinking agent, or at least one tris(alkoxy-carbonylamino)triazine and at least one oligomeric or polymeric, epoxide-containing crosslinking agent containing from 0.5 to 40% by weight, based on the crosslinking agent, of copolymerized glycidyl-containing monomers, and/or a low molecular mass, epoxide-containing crosslinking agent, and at least one carboxyl-containing polymer as binder, both variants comprising at least one polyol.

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