发明名称 |
TWO COMPONENT WATERBORNE POLYURETHANE COATINGS FOR ANTI-GRAFFITI APPLICATION |
摘要 |
Two component (2K) waterborne polyurethane coating compositions which when cured achieve excellent anti-graffiti properties at low VOC level (below 100 g/L) are disclosed. The composition comprises (A) a fluorinated polyol and optionally a non-fluorinated polyol; and (B), a blend of polyisocyanates comprising a hydrophilically modified trimer of hexamethylene diisocyanate (HDT) and a hydrophilic ally modified trimer of isophorone diisocyanate (IPDT). The glass transition temperature of the ambient cured coatings, crosslinked network structure, and fluorine content at the surface enable excellent anti-graffiti properties. The waterborn coatings of the invention have excellent recoatability and exceptional chemical resistance. |
申请公布号 |
EP2188343(B1) |
申请公布日期 |
2016.07.13 |
申请号 |
EP20080798466 |
申请日期 |
2008.08.22 |
申请人 |
VENCOREX FRANCE |
发明人 |
WU, XIAODONG;ROSEN, RICHARD, P. |
分类号 |
C09D183/00;C08G18/00;C08G18/79;C08K3/20 |
主分类号 |
C09D183/00 |
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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