Passification of optically variable pigment and waterborne coating compositions containing the same
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United States of America Patent
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Sep 3, 1996
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app pub date -
May 11, 1995
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May 23, 1994
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Abstract
The present invention is a composition comprising an optically variable pigment modified with a silane functional compound and a copolymer which is a polymeric backbone having a reactive functionality thereon to react with the silane functional compound. The invention also includes a process for treating the optically variable pigment, and a coating composition containing the treated optically variable pigment.
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