Surface-treated substrate and process for its production
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United States of America Patent
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Jul 28, 1998
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N/A
app pub date -
Nov 12, 1996
filing date -
Nov 12, 1996
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Expired
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Abstract
A surface-treated substrate which is a substrate having at least two treated surface layers, wherein the first layer constituting the outermost layer among the treated surface layers is a layer formed by treatment with a surface treating agent containing compound B of the formula (B) as an essential component, and the second layer constituting an underlayer in contact with the outermost layer is a layer formed by treatment with a surface treating agent containing compound A of the formula (A) and Si(NCO).sub.4 as essential components: (R.sup.1).sub.a (R.sup.2).sub.b Si(Z).sub.4-a-b (A) (R.sup.3).sub.c (R.sup.4).sub.d Si(NCO).sub.4-c-d (B) wherein R.sup.1 is an organic group, R.sup.2 is a hydrogen atom or an organic group, a is 1, 2 or 3, b is 0, 1 or 2, provided that 1.ltoreq.a+b.ltoreq.3, and Z is an isocyanate group or a hydrolyzable group; and R.sup.3 is an organic group, R.sup.4 is a hydrogen atom or an organic group, c is 1, 2 or 3, and d is 0, 1 or 2, provided that 1.ltoreq.c+d.ltoreq.3.
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