发明名称 |
One-component, waterborne film-forming composition |
摘要 |
A film-forming composition that includes a stable aqueous dispersion of a mixture of a polyester polyol and a carboxylic acid-containing acrylic polymer polyol and a crosslinking agent having functional groups reactive with hydroxyl groups. The weight ratio of polyester polyol to acrylic polymer polyol is in the range of 10:90 to 30:70. The crosslinking agent is one or more blocked isocyanates or aminoplasts. The equivalent ratio of hydroxyl groups to reactive functional groups on the crosslinking agent is from 0.8:1 to 1.7:1. The film forming composition can be used in multi-layer composite coating compositions that include a base coat layer and a substantially pigment-free topcoat deposited over at least a portion of the base coat layer, the topcoat composition including the present film-forming composition.
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申请公布号 |
US6881786(B2) |
申请公布日期 |
2005.04.19 |
申请号 |
US20020151275 |
申请日期 |
2002.05.20 |
申请人 |
PPG INDUSTRIES OHIO, INC. |
发明人 |
SWARUP SHANTI;DAU THI BACH-PHUONG |
分类号 |
C08G18/08;C08G18/63;C08G18/80;C09D175/06;(IPC1-7):C08G18/63 |
主分类号 |
C08G18/08 |
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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