B - Operations – Transporting – 05 – D
Patent
B - Operations, Transporting
05
D
B05D 1/38 (2006.01) A61K 6/00 (2006.01) A61K 6/09 (2006.01) C09D 4/06 (2006.01) C09J 4/06 (2006.01)
Patent
CA 2163166
A process for the production of a firmly adhering, moisture-proof coating of plastic on a substrate of metal, ceramic, glass, or polymer by the applica tion of a liquid preparation containing water, solvent, a (meth)acrylate, and a reactive polymer and by solidifying this coating by heating it to a temperature above 100°C is described. A first preparation is applied to the substrate and at least partially dried; a second preparation is then applied to the partially dried first preparation and at least partially dried. Then the coating is heated to a temperature in the range of 150-400°C to solidify it. The first preparation contains: ? 5-25 wt.% of an aqueous copolymer suspension, the copolymer consisting of a mixture of 40-80 wt.% of acrylonitrile and 60-20 wt.% of butyl acrylate; ? 5-20 wt.% of water; ? 35-75 wt.% of a polar solvent; and ? 3-15 wt.% of a (meth)acrylate which is nonvolatile at temperatures of up to 250°C, with the provision that the percentages always add up to 100%; and the second preparation contains: ? 5-20 wt.% of a 40-90 wt.% solution of an isocyanate group-free poly-urethane baking resin in solvent naphtha 100; ? 65-85 wt.% of solvent; and ? 3-20 wt.% of a (meth)acrylate which is nonvolatile at temperatures of up to 250°C, with the provision that the percentages always add up to 100%.
Erdrich Albert
Fremdt Sonja
Oppawsky Steffen
Heraeus Kulzer Gmbh
Swabey Ogilvy Renault
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