发明名称 |
Color changing pan paint compositions |
摘要 |
Pan paints and associated color-changing systems are disclosed. In a first embodiment, the color-changing system comprises an undercolor pan paint coloring composition comprising an undercolor dye whose coloring ability is destroyed in the presence of a pH of about 10 or greater and/or in the presence of a reducing agent; and an overcolor composition comprising a colorant capable of maintaining its characteristic color in the presence of a pH of about 10 or greater and/or in the presence of a reducing agent, and a base such that the pH of the overcolor composition is about 10 or greater and/or a reducing agent. In a second embodiment, the color-changing system comprises an undercolor coloring composition comprising an undercolor dye whose coloring ability is destroyed in the presence of a pH of about 4 or less; and an overcolor coloring composition comprising a colorant capable of maintaining its characteristic color in the presence of a pH of about 4 or less and an acid such that the pH of the overcolor coloring composition is about 4 or less; wherein one or both of the coloring compositions is a pan paint.
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申请公布号 |
US5498282(A) |
申请公布日期 |
1996.03.12 |
申请号 |
US19940317212 |
申请日期 |
1994.10.03 |
申请人 |
BINNEY & SMITH INC. |
发明人 |
MILLER, RICHARD E.;DEREAMUS, ROBERT C. |
分类号 |
C09D5/00;C09D5/06;C09D7/00;C09D7/02;C09D7/12;C09D11/00;C09D11/02;(IPC1-7):C09D11/02 |
主分类号 |
C09D5/00 |
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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