发明名称 |
STABILE, ÄTZRESISTENTE EINKOMPONENTENBESCHICHTUNG |
摘要 |
<p>A stable one package etch-resistant film-forming composition is disclosed. The composition includes a polyepoxide component having an epoxy equivalent weight on resin solids of less than about 600. The composition further includes a polyacid curing agent having an average acid functionality of greater than 2. The composition is substantially free of basic esterification catalyst, has a cured softening point of greater than about 20 DEG C., and is stable for use as a single-component composition. Also disclosed is a process for applying a color-plus-clear composite coating to a substrate which includes applying a acid-catalyzed thermosetting film-forming composition to a substrate to form a basecoat. The process also comprises applying a stable etch-resistant film-forming composition to the basecoat which includes a polyepoxide and a polyacid curing agent as described above, wherein the topcoat is substantially free of basic esterification catalyst, has a cured softening point of greater than about 20 DEG C. The composition and process are useful in original equipment finishing of automobile and trucks.</p> |
申请公布号 |
AT174938(T) |
申请公布日期 |
1999.01.15 |
申请号 |
AT19920911612T |
申请日期 |
1992.04.06 |
申请人 |
PPG INDUSTRIES, INC. |
发明人 |
MCMONIGAL, SUSAN U.;SINGER, DEBRA, L.;SIMPSON, DENNIS, A.;KLANICA, JOSEPH, A.;MAYO, MICHAEL, A. |
分类号 |
C09D161/20;B05D7/24;C08F8/00;C08G59/42;C09D133/14;C09D163/00;C09D167/00;C09D167/02;(IPC1-7):C08F20/32;B05D1/36 |
主分类号 |
C09D161/20 |
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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