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| Refractory celsian glass-ceramics |
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| Continuous flood foaming of thermoplastic resin |
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Surface-treated substrate
| Details |
Inventors: Yoneda, Takashige; Wakabayashi, Tsuneo; Takano, Yukiko;
Assignee: Asahi Glass Company Ltd. (Tokyo, JP)
Primary Examiner: Nakarani; D. S.
Assistant Examiner:
Attorney, Agent or Firm: Oblon, Spivak, McClelland, Maier & Neustadt, P.C.
A surface-treated substrate consisting essentially of 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 obtained by treatment with a compound (I) capable of forming a surface having a contact angle of at least 70.degree. against water and the second layer constituting an underlayer in contact with the outermost layer is a layer obtained by treatment with at least one reactive silane compound (II) selected from the group consisting of isocyanate silane compounds and hydrolyzable silane compounds. |
|
DETAILED DESCRIPTION What is claimed is: 1.
A surface-treated substrate consisting essentially of a substrate having at least two different treated surface layers wherein the first layer constituting the outermost layer among the treated surface layers is a layer obtained by treatment with a hydrolyzable silane compound (I) capable of forming a surface having a contact angle of at least 70.
degree.
against water and the second layer constituting an underlayer in contact with the outermost layer is a layer obtained by treatment with an organic group containing isocyanate silane compound wherein the isocyanate group is directly bonded to silicon.
2.
The substrate according to claim 1, wherein the substrate is made of glass.
3.
The substrate according to claim 1, wherein the substrate is a part for a transportation equipment.
4.
The substrate according to claim 1, wherein the substrate is a part for a building material or building decoration.
5.
The substrate according to claim 1, wherein the compound (I) is a reactive silane compound having at least one silicon atom having an isocyanate group or a hydrolyzable group bonded thereto.
6.
The substrate according to claim 5, wherein the reactive silane compound is a reactive silane compound having at least one polyfluoroorganic group.
7.
The substrate according to claim 1, wherein the compound (I) is a reactive silane compound of the following formula (A) or (B) wherein at least one organic group is a polyfluoroorganic group: (Z).
sub.
3-a-b (R.
sup.
1).
sub.
a (R.
sup.
2).
sub.
b Si--Y--Si(R.
sup.
3).
sub.
c (R.
sup.
4).
sub.
d (Z).
sub.
3-c-d (A) wherein each of R.
sup.
1, R.
sup.
2, R.
sup.
3 and R.
sup.
4 which are independent of one another, is hydrogen or a C.
sub.
1-21 organic group, Y is a bivalent organic group, Z is an isocyanate group or a hydrolyzable group, each of a and b which are independent of each other, is an integer of 0, 1 or 2, provided 0.
ltoreq.
a+b.
ltoreq.
2, and each of c and d which are independent of each other, is an integer of 0, 1 or 2, provided 0
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Manufacturing Materials 
