Cognis patents

May 17, 2007

Patent No. U.S. 7,132,483 B2
Cognis Deutschland GmbH & Co. KG has obtained a patent for a method for preparing a cured coating composition. The method is comprised of providing a coating composition consisting of from 0.5% to 90% by weight of at least one epoxy resin other than self-dispersing epoxy resins; from 0.5% to 90% by weight of at least one (meth)acrylate of a polyol; from 5% to 98% by weight of water; from 0.5% to 10% by weight of one or more dispersants; and from 0.1% to 3% by weight of an organic solvent; wherein the at least one (meth)acrylate comprises at least two (meth)acrylate groups per molecule; and wherein the Brookfield viscosity of the composition is less than 15,000 mPas; contacting the composition with from 1% to 200% by weight, based on the at least one epoxy resin, of a water-dilutable hardener; and allowing the composition and hardener to cure.

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