JPH07285147A - Window and integrally molding method thereof - Google Patents

Abstract

PURPOSE:To provide a window and the integral molding method thereof wherein an applicability of an adhesive has been improved and bonding strength is excellent. CONSTITUTION:Plastic glass 3 and a molding 4 integrally molded on a peripheral part of the plastic glass 3 are provided. An irregular surface 25 is formed on the peripheral part of the plastic glass 3. A hard coat processed layer 51 and an adhesive layer 52 are successively provided on the irregular surface 25, and the molding 4 is provided integrally on the adhesive layer 52. A depth of the irregular surface 25 is preferably 5 to 50mum. A thickness of the hard coat processed layer 51 is preferably 5 to 10mum. The irregular surface can be formed by, for example, sandblasting.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a window in which a molding is integrally joined to a peripheral edge portion of plastic glass, and a method for integrally molding the window.

[0002]

2. Description of the Related Art As shown in FIG.
There is known a window in which a resin molding 4 is integrally joined to the peripheral edge of the. Conventionally, such integrally molded windows have been
The surface of the plastic glass 3 is hard-coated with a silicon-based agent or the like for surface protection, and then an adhesive is applied to the peripheral edge of the plastic glass 3, and then the plastic glass 3 is put in a molding die. It is manufactured by injecting molding resin into the peripheral portion (see FIG. 6 described later) and integrally bonding the molding 4 to the peripheral portion of the plastic glass 3 (see FIG. 7 described later). That is, they are integrally molded by insert injection molding.

[0003]

[Problems to be Solved] However, as described above, when an adhesive is applied to a hard-coated plastic glass surface, the adhesive is repelled by the water repellency of the hard-coating agent and uniformly applied to the plastic glass surface. Difficult to do. For this reason, in the window obtained by integrating by insert injection molding as described above, the adhesive strength between the molding and the plastic glass may vary, and there is a risk that the joint may separate during use.

In order to solve such a problem, a method has been proposed in which plasma treatment is performed after hard coat treatment to improve the coatability of the adhesive (Japanese Patent Laid-Open No. 62-62).
No. 121734, Japanese Patent Laid-Open No. 62-121735). However, such a method requires a high cost for a plasma processing apparatus and the like, and a window product has a high cost. In view of such conventional problems, the present invention aims to provide a window having improved adhesive coatability and excellent adhesive strength, and a method for integrally molding the window.

[0005]

The present invention comprises a plastic glass,
A window having a molding integrally formed on the peripheral edge of the plastic glass, wherein an uneven surface is formed on the peripheral edge of the plastic glass, and a hard coat treatment layer and an adhesive are formed on the uneven surface. The agent layers are sequentially provided,
The window is characterized in that the molding is integrally provided on the adhesive layer.

The irregular surface may be an irregular grain pattern, a regular irregular shape, a straight or curved groove, or the like. The depth of the uneven surface is preferably 5 to 50 μm. This is because if the thickness is less than 5 μm, the wettability between the adhesive and the plastic glass is poor, and if it exceeds 50 μm, it is too deep and the problem of defective coating of the convex portions is likely to occur. Further, the peripheral portion is a portion to which the adhesive is applied, but both portions may be the same or slightly different. That is, either one may be slightly protruding.

The hard coat layer is formed prior to the application of the adhesive as in the conventional case.
As the hard coat treatment layer, there is a polysiloxane-based silicon hard coat treatment agent such as trimethoxysilane. Further, there are UV (ultraviolet) curing hard coat treatment agents such as thiolene type and acrylic type radical polymerization systems such as polyester and polyacrylate, and cationic polymerization systems such as epoxy resin.

The hard coat treatment is carried out by immersing the plastic glass in the treatment agent as described above or applying it on a roll. As a result, the hard coat treatment layer is formed on the surface. Then,
The hard coat treatment layer preferably has a thickness of 5 to 10 μm. If it is less than 5 μm, the surface protection of the plastic glass is not sufficient, and if it exceeds 10 μm, the uneven surface becomes shallow and the wettability of the adhesive may deteriorate.

As the plastic glass, there are injection molded products such as polycarbonate, acrylic, ABS resin and the like. As the adhesive, nylon type,
There are adhesives such as urethane type. In addition, as the resin molding, there are polyvinyl chloride, urethane, polyolefin and the like, which are integrally formed on the peripheral edge of the plastic glass by injection molding.

Next, as a method for producing the integrally molded product of the above-mentioned window, for example, the surface of the plastic glass is subjected to a hard coat treatment, then an adhesive is applied to the peripheral portion thereof, and then the plastic glass is put in a molding die. In a method of integrally molding a window in which a molding resin is integrally bonded to the peripheral edge portion of the plastic glass by injecting a molding resin into the peripheral edge portion, an uneven surface is formed on the peripheral edge portion of the plastic glass. Then, there is a method of integrally molding a window, which is characterized by applying a hard coat treatment to the surface and then applying an adhesive.

In forming the uneven surface on the peripheral edge of the plastic glass, for example, in a mold for molding the plastic glass, an uneven surface such as a grain pattern is previously formed on the peripheral edge of the cavity. Then, the raw material of the plastic glass is injected into the mold and solidified. As a result, the uneven surface of the molding die is transferred to the plastic glass.

As another method for forming the uneven surface,
For example, for molded plastic glass,
There is a method of sandblasting the peripheral portion. This sandblasting method is a method of forming the uneven surface by hitting hard particles of stainless steel, SiC (silicon carbide), carborundum, or the like with the high-speed air stream on the peripheral portion. As the hard particles, fine particles having a diameter of 0.1 to 1.0 mm are used. The particle collision speed on the plastic glass surface is 30 to 100 m /
Seconds.

According to the above sandblasting, the uneven surface can be provided on any portion regardless of the shape of the plastic glass, the area of the peripheral portion forming the uneven surface, and the shape. Further, the uneven surface can be provided at the same time when the plastic glass is molded, and the process can be shortened.

[0014]

In the present invention, an uneven surface is formed on the periphery of the plastic glass, and the surface is covered with the hard coat treatment layer. for that reason,
The wettability of the adhesive with respect to the peripheral edge is improved, and the adhesive can be uniformly applied to the peripheral edge of the plastic glass. Therefore, the plastic glass and the molding can be firmly bonded. Also, the manufacturing cost is low. Therefore, according to the present invention, it is possible to provide a window having improved adhesive coatability and excellent adhesive strength, and a method for integrally forming the window.

[0015]

【Example】

Example 1 A window according to an example of the present invention and an integral molding method thereof will be described with reference to FIGS. 1 to 9. In the integrally molded window of this example, the plastic glass 3 is shown in FIG.
As shown in the state of the joint portion between the molding 4 and the molding 4, a grain pattern 25 is formed on the surface of the plastic glass 3, a hard coat treatment layer 51 is formed thereon, and an adhesive 52 is further formed thereon.
The molding 4 is integrally provided on the adhesive 52.

Next, a method of manufacturing the above integrally molded window will be described. First, a method of forming plastic glass will be described. As shown in FIG. 5, the plastic glass has a peripheral edge portion 31 of the plastic glass 3 in the shape of a right triangle.
An embossed pattern 25 as an uneven surface is provided on the entire surface. The plastic glass 3 is manufactured using the mold 1 shown in FIG.

The mold 1 comprises a lower mold 11 and an upper mold 12. The lower mold 11 has a right triangular triangular cavity 13 for molding plastic glass. Inside the cavity 13, as shown in FIGS.
A grain pattern 21 is formed. Similarly, the upper die 12 also has a cavity 14 as shown in FIG.
A grain pattern 21 is formed on the periphery of the same as the cavity 13.

Next, when molding the plastic glass 3, the guide rod 121 of the upper mold 12 is inserted into the guide hole 111 of the lower mold 11 to form a molding part by the cavities 13 and 14, and the molten plastic is melted therein. Inject glass raw material, cool and solidify. Thereby, as shown in FIG. 5, the plastic glass 3 having the grain pattern 25 on the peripheral edge portion 31 is obtained.

Next, the entire surface of the plastic glass 3 is hard-coated by a conventional method. The hard coated plastic glass 3 is inserted into a molding die including a lower die 45 and an upper die 46, as shown in FIG. Then, the resin 41 is poured into the mold, cooled and solidified, and as shown in FIGS.
An integrally molded product of a window is obtained in which the molding 4 is integrally fixed to the peripheral edge of the.

In the molding die shown in FIG. 6, the lower die 45
And the upper mold 46 has the cavity 4 when both are combined.
51 and 461 are formed so that the cross-sectional shape of the molding 4 is configured. The upper and lower mold recesses 45
The molding resin does not flow into 2,462. As described above, according to the method of this example, a window in which the plastic glass 3 and the molding 4 are integrally and firmly bonded together via the grain pattern 25, the hard coat treatment layer 51, and the adhesive 52 can be obtained. .

Example 2 In Example 1 above, a plastic glass 3 of a polycarbonate material having a grain pattern 25 formed on the peripheral edge portion (width of about 1 cm from the peripheral edge) was molded. The grain pattern 25 has a depth of about 20 μm. Next, a polysiloxane-based hard coat treatment layer 51 having a thickness of about 8 μm was formed on the entire surface of the plastic glass 3 including the peripheral portion 31.

Thereafter, a urethane adhesive was applied to the peripheral edge portion 31 to a thickness of about 10 μm. Then, a molding die including the lower die 45 and the upper die 46 shown in FIG. 6 was used to inject a polyvinyl chloride resin into the peripheral portion to integrally form the plastic glass 3 and the molding 4 (FIG. 9) was obtained.

In the above, the adhesive was applied to the textured pattern on the peripheral portion with good wettability and could be applied uniformly. In the wind, plastic glass 3
And the molding 4 were firmly joined.

Example 3 In Example 1, the grain pattern was formed on the peripheral edge of the plastic glass by sandblasting. That is, SiC particles having a particle diameter of 0.3 mm were used and collided with the peripheral edge portion 31 of the plastic glass 3 together with pressurized air at a flow rate of 80 m / sec. As a result, a grain pattern having a depth of about 30 μm was formed on the peripheral portion. After that, the window was integrally formed in the same manner as in Example 1.

[Brief description of drawings]

FIG. 1 is a perspective view of a molding die for molding plastic glass according to a first embodiment.

FIG. 2 is an enlarged plan view of part A in FIG.

FIG. 3 is an enlarged cross-sectional view of portion B in FIG.

FIG. 4 is a cross-sectional view of a molding die for molding plastic glass of Example 1.

FIG. 5 is a front view of the plastic glass having a grain pattern on its peripheral edge in Example 1.

FIG. 6 is a cross-sectional view showing the state of the window during molding in Example 1.

FIG. 7 is a cross-sectional view showing a joined state of the plastic glass and the molding of Example 1.

FIG. 8 is an enlarged cross-sectional view of portion C of FIG.

FIG. 9 is a front view of the window according to the first embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Mold for molding plastic glass, 21 ... Texture pattern of molding die, 25 ... Texture pattern of plastic glass, 3 ... Plastic glass, 31 ... Peripheral part, 4 ... Mall, 51 ... Hard coating layer,

Claims (6)

[Claims] 1. A window having a plastic glass and a molding integrally formed on a peripheral edge of the plastic glass, wherein an uneven surface is formed on the peripheral edge of the plastic glass. A window characterized in that a hard coat treatment layer and an adhesive layer are sequentially provided thereon, and the molding is integrally provided on the adhesive layer. 2. The window according to claim 1, wherein the uneven surface has a depth of 5 to 50 μm. 3. The window according to claim 1, wherein the hard coat layer has a thickness of 5 to 10 μm. 4. The hard coat treatment layer according to claim 1, wherein the hard coat treatment layer is a polysiloxane-based silicon hard coat treatment agent, a radical polymerization-type or cationic polymerization-type ultraviolet-curing hard coat treatment agent, or the like. A window characterized by being one or more. 5. A surface of plastic glass is hard-coated, and then an adhesive is applied to the periphery of the surface,
Then, the plastic glass is put into a molding die, a molding resin is injected into the peripheral edge portion, and a window in which the molding is integrally bonded to the peripheral edge portion of the plastic glass is integrally molded. An integral molding method for a window, characterized in that an uneven surface is formed on the peripheral portion, then the surface is hard-coated, and then an adhesive is applied. 6. The uneven surface according to claim 5,
A method for integrally molding a window, which comprises forming hard particles of 0.1 to 1.0 mm by hitting with a high-speed air stream.