发明名称 |
Process for multi-layer coating of substrates |
摘要 |
The invention relates to a process for multi-layer coating of substrates which comprises the steps of applying at least two coating layers and curing of the applied coatings with high energy radiation and moisture; wherein at least one of the coating layers is formed from a coating composition comprising a binder system of resin solids wherein the resin has free-radically polymerizable olefinic double bonds and hydrolysable alkoxysilane groups, wherein the resin solids content of the coating composition has an equivalent weight of C=C double bonds of 200 - 2000 and has a silicon content of 1 - 10 wt-%, wherein the silicon is bound in alkoxysilane groups and wherein the coating composition contains 10-60 wt.%, relative to the complete coating composition, of polar water-miscible organic solvents with a water solubility at 20 DEG C of at least 220 g/l and wherein the step of curing of the at least one coating layer comprises irradiation with high energy radiation thereby polymerizing the C=C double bonds via free radical polymerization and exposure to moisture thereby forming siloxane bridges from the alkoxysilane groups.
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申请公布号 |
EP1473343(A1) |
申请公布日期 |
2004.11.03 |
申请号 |
EP20040008204 |
申请日期 |
2004.04.05 |
申请人 |
E. I. DU PONT DE NEMOURS AND COMPANY |
发明人 |
WISSING, KLAUS;FLOSBACH, CARMEN;FRESE, PETER;REIS, OLIVER |
分类号 |
C08G18/67;C08G18/78;C08G18/80;C09D175/16;(IPC1-7):C09D175/16 |
主分类号 |
C08G18/67 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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