Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Patent
1998-05-28
2000-08-15
Sells, James
Adhesive bonding and miscellaneous chemical manufacture
Methods
Surface bonding and/or assembly therefor
156297, 1563096, 156350, 1565801, 428 67, B32B 3116
Patent
active
061030341
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a method of melt-adhering a hard resin product to a substrate formed by a material including silicon, an apparatus for implementing this method, a method of manufacturing a window glass in which a hard resin product is melt-adhered to a glass substrate, and a window glass which is manufactured in accordance with this method.
2. Description of the Related Art
As shown in FIG. 6, a window glass 10 is adhered to a mounting portion 11 of a vehicle body by a urethane sealer 12, and the urethane sealer 12 which attaches to the edge portion of the window glass 10 keeps the inside of the vehicle airtight. A stopper 14 is adhered beforehand to a predetermined position of the window glass 10. The stopper 14 is inserted through an opening portion 15 formed in the mounting portion 11 in such a way that, until the urethane sealer 12 is cured, the window glass 10 is temporarily held in a predetermined position (Japanese Utility Model Application Laid-Open (JP-U) No. 6-32132).
Conventionally, a urethane adhesive agent or a double sided tape is used for adhering the stopper 14 to the window glass 10. However, because of the time it takes for the urethane adhesive agent to dry, there is a need to have an empty space or the like for leaving the window glass 10 in, until the urethane adhesive agent is dried. The cost of manufacturing is thereby increased. In contrast to this, when the double sided tape is used, no special equipment is required, and the tape is inexpensive. However, because the adhesive strength of the double sided tape is low, when the weight of the window glass 10 is applied to the stopper 14, the stopper 14 may come away from the window glass 10.
SUMMARY OF THE INVENTION
An object of the present invention is to provide a method of melt-adhering a hard resin product to a substrate, in which a hard resin product can be securely adhered to a substrate inexpensively, and an apparatus for implementing the method.
Further, another object of the present invention is to provide a method of manufacturing a window glass, in which a hard resin product such as a stopper is securely melt-adhered to a glass substrate inexpensively, and a window glass which is manufactured in accordance with this method.
A first aspect of the present invention is a method of melt-adhering a hard resin product to a substrate, wherein: a primer which includes a silane coupling agent is applied to the surface of a substrate which includes silicon, a hard resin product contacts a portion to which the primer has been applied, and the resin product is vibrated while pressure is applied thereto.
The reaction mechanism of the first aspect of the present invention will be described as follows. The silane coupling agent included in the primer is subjected to hydrolysis by water in the atmosphere so as to form silanol. This silanol is subjected to dehydration and condensation with the silanol on the surface of the substrate, or is subjected to hydrogen bonding with the silanol on the surface of the substrate. Alternately, the alkoxy group in the silane coupling agent is adsorbed to the surface of the substrate. In this way, the primer is adhered to the substrate. On the other hand, the primer and the resin product are melt-adhered due to the melting of the resin product caused through vibration.
Because the primer and the substrate are adhered through a chemical reaction and the primer and the resin product are melt-adhered, the resin product is securely fixed to the substrate. Accordingly, even when force is applied to the resin product, it is difficult to remove the resin product from the substrate.
Further, since the melt-adhesion is effected in a short time, there is no need to have the extra space which is required when an adhesive agent is used, and the resin product can be melt-adhered to the substrate inexpensively.
A second aspect of the present invention is an apparatus for melt-adhering a hard resin product to a substrate, comprising: a melt-adheri
REFERENCES:
patent: 5110381 (1992-05-01), Heckard et al.
patent: 5152438 (1992-10-01), Gordon et al.
patent: 5601669 (1997-02-01), Moody et al.
patent: 5653832 (1997-08-01), Thompson et al.
patent: 5759319 (1998-06-01), Moody et al.
Fujiwara Kousyun
Sasaki Yoshio
Sells James
Toyota Jidosha & Kabushiki Kaisha
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