Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V.

Masco Corporation

Evelyn Deliso

Gerhard Schottner

Uwe Posset

Daniel Ford

The present invention is directed to an optically clear coating made from a composition comprising an epoxy-melamine resin. The coating is obtained on a metallic substrate and has a very rigid structure and a unique combination of properties that includes hydrophobicity/easy-to-clean, adhesion to bright chrome, abrasion resistance and chemical resistance. The coating composition comprises (A) a mixture of at least one hydrolysable silane and one hydrolysable metal compound, the compounds of said mixture being partly or fully hydrolyzed and partly or fully condensed, (B) at least one melamine derivative selected from derivatives having formula (CN)(NRR), and derivatives having formula (CN)(NRR)(NRR), wherein Rand Rare independently selected from H, hydroxymethylene and alkoxymethylene, with the proviso that at least one of the Rgroups is a hydroxymethylene or alkoxymethylene group, and Ris &#x2014;CH&#x2014;NR(CN)(NRR)or &#x2014;CH&#x2014;O&#x2014;CHNR(CN)(NRR), and p is 1 or 2, and either at least one partially or fully fluorinated, at least partly hydrolyzed and condensed silane compound, this compound being part of the said mixture (A) of hydrolysable silanes, or (C) at least one partially or fully fluorinated organic compound containing at least one group which may bind to hydroxy groups.

Growing community of inventors

Ann Arbor, MI, United States of America

Evelyn Deliso