VEHICLE WINDOW MEMBER WITH WINDOW FRAME AND MANUFACTURING METHOD THEREOF
The vehicle window member with the window frame includes: the vehicle-window-use transparent plate-shaped body; the window frame made of a thermoplastic resin arranged at a region including a peripheral edge part of at least one principle surface; a functional sol-gel layer arranged at one of principle surfaces of the plate-shaped body where the window frame is arranged and between the window frame and the plate-shaped body to be partially overlapped with an arrangement region of the window frame; a primer layer arranged at substantially the same region as the arrangement region of the window frame at the plate-shaped body side of the window frame to be adjacent to the window frame; and an overcoat layer arranged between the functional sol-gel layer and the primer layer to include a region where both are overlapped, and mainly constituted of an oxide of at least one selected from Si, Ti, Zr and Zn.
1 . A vehicle window member with a window frame, comprising:
a vehicle-window-use transparent plate-shaped body;
a window frame made of a thermoplastic resin arranged at a region including a peripheral edge part of at least one principle surface among a plate-shaped body end part region consisting of peripheral edge parts of both principle surfaces and a side surface part of the transparent plate-shaped body;
a functional sol-gel layer arranged at one of the principle surfaces of the transparent plate-shaped body where the window frame is arranged, so that the functional sol-gel layer is partially overlapped with the region where the window frame is arranged and an overlapped part of the functional sol-gel layer is arranged between the window frame and the transparent plate-shaped body;
a primer layer arranged at substantially the same region as an arrangement region of the window frame at the transparent plate-shaped body side of the window frame to be adjacent to the window frame; and
an overcoat layer mainly constituted of an oxide of at least one kind of element selected from silicon, titanium, zirconium, and zinc, and which is arranged between the functional sol-gel layer and the primer layer to include a region where both are overlapped.
2 . The vehicle window member with the window frame according to claim 1 ,
wherein the oxide is an oxide formed by a hydrolysis and condensation reaction of a hydrolyzable compound of at least one kind of element selected from silicon, titanium, zirconium, and zinc.
3 . The vehicle window member with the window frame according to claim 2 ,
wherein the hydrolyzable compound is a tetrafunctional hydrolyzable silicon compound and/or polysilazane.
4 . The vehicle window member with the window frame according to claim 1 , further comprising:
a black ceramic layer arranged at the peripheral edge part of at least one principle surface of the transparent plate-shaped body to hide an inner edge of the window frame.
5 . The vehicle window member with the window frame according to claim 1 ,
wherein a thickness of the overcoat layer is 1 to 500 nm.
6 . A manufacturing method of the vehicle window member with the window frame according to claim 1 , comprising the following steps (1) to (5);
a step (1) of forming a functional sol-gel layer at a predetermined region on at least one principle surface of the transparent plate-shaped body,
a step (2) of forming an overcoat layer by using an overcoat layer forming composition containing a hydrolyzable compound of at least one kind of element selected from silicon, titanium, zirconium, and zinc and a solvent at an arrangement region of the overcoat layer on the functional sol-gel layer,
a step (3) of obtaining a vehicle-window-use stack precursor by applying a primer layer forming composition containing a primer component and a solvent at an arrangement region of the primer layer including on the overcoat layer, after the step (2),
a step (4) of obtaining a vehicle-window-use stack by heating the vehicle-window-use stack precursor, after the step (3), and
a step (5) of arranging the window frame by injection molding at a predetermined region of the vehicle-window-use stack, after the step (4).
7 . The manufacturing method according to claim 6 ,
wherein a heating temperature of the vehicle-window-use stack precursor in the step (4) is 80° C. or more.