发明名称 |
Two stage cure two component coating composition containing hydroxylbutyl acrylate polymers |
摘要 |
The invention is directed to a two-stage cure coating composition comprising a two component composition of a binder and a crosslinking component; the binder comprises an acrylic polymer having a weight average molecular weight of 3,000 to 50,000 and hydroxyl moieties in the range of 7.0 to 40.0 weight percent, based on the weight of the acrylic polymer; wherein at least 40.0 weight percent of the hydroxyl moieties are provided by hydroxy butyl acrylate; and the crosslinking component comprises an organic polyisocyanate; and the first stage curing of a finish of the composition on a substrate forms a water spot free finish within 90 minutes of application and the composition has a pot life of less than a 2 second rise in Zahn cup viscosity in 150 minutes; and the invention also is directed to a method of producing a finish on a substrate utilizing the two component coating composition which comprises forming a two stage cure coating composition by mixing together the above described binder component and a cross-linking component; applying a layer of the coating composition over the substrate; first stage curing the layer on the substrate to a water spot free finish; and second stage curing the first stage cured layer on the substrate into a finish having excellent appearance and excellent physical properties.
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申请公布号 |
US2005027074(A1) |
申请公布日期 |
2005.02.03 |
申请号 |
US20040837383 |
申请日期 |
2004.04.30 |
申请人 |
LEWIN LAURA ANN;DEVLIN BRIAN PATRICK;PAQUET DONALD ALBERT;ADAMS JAMES LAMONTE |
发明人 |
LEWIN LAURA ANN;DEVLIN BRIAN PATRICK;PAQUET DONALD ALBERT;ADAMS JAMES LAMONTE |
分类号 |
C08G18/62;C08G18/79;C08L61/00;C09D;C09D133/06;C09D175/04;(IPC1-7):C08L61/00 |
主分类号 |
C08G18/62 |
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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