发明名称 |
WATER-BASED TWO-LAYER COATING SYSTEMS BASED ON URETHANE, THE USE THEREOF AND SUBSTRATES COATED WITH THEM |
摘要 |
Disclosed is an aqueous clearcoat material for producing a waterborne urethane-based two-coat coating system, comprising at least one secondary polyacrylate dispersion having a polyacrylate glass transition temperature Tg≧20° C. and at least one hybrid polyacrylate-polyurethane dispersion with a weight ratio of the polyacrylate fraction of the secondary dispersion to the polyacrylate-polyurethane fraction of the hybrid dispersion of 1:1 to 4:1, and as curing agent at least one low-viscosity aminosulfonic polyisocyanate and an aqueous basecoat material for producing a waterborne two-coat coating system comprising at least one polyurethane dispersion, at least one hybrid polyacrylate-polyurethane dispersion, and at least one melamine resin. Also disclosed are a waterborne two-coat coating system comprising the clearcoat material and the basecoat material, a process for producing it, its use to coat a substrate, and substrates coated with it. |
申请公布号 |
EP2152824(B1) |
申请公布日期 |
2016.08.03 |
申请号 |
EP20080749237 |
申请日期 |
2008.04.30 |
申请人 |
BASF COATINGS GMBH |
发明人 |
FICKERS, ANNE;RINK, HEINZ-PETER;DOPP, ANDREAS |
分类号 |
C09D175/16;C08G18/08;C08G18/10;C08G18/12;C08G18/42;C08G18/67 |
主分类号 |
C09D175/16 |
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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