JP2570164B2 - Window and its integral molding method - Google Patents

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 portion of plastic glass, and a method of integrally molding the same.

[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 a peripheral portion of the resin molding. Conventionally, such an integrally formed window has been
The surface of the plastic glass 3 is hard-coated with a silicon-based agent or the like to protect the surface, then an adhesive is applied to the periphery of the plastic glass 3, and then the plastic glass 3 is put into a mold. It is manufactured by injecting molding resin into the peripheral portion (see FIG. 6 described later) and integrally joining the molding 4 to the peripheral portion of the plastic glass 3 (see FIG. 7 described later). That is, they are integrally formed by insert injection molding.

[0003]

However, as described above, when an adhesive is applied to the surface of a plastic glass that has been hard-coated, the adhesive is repelled by the water repellency of the hard-coating agent and is uniformly applied to the surface of the plastic glass. Is difficult to do. For this reason, in the window obtained by being integrated by insert injection molding as described above, the bonding strength between the molding and the plastic glass varies, and the joint may be peeled off 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 applicability of the adhesive (Japanese Patent Laid-Open No. Sho 62-62).
No. 121,734 and JP-A-62-121735). However, such a method requires a high cost of a plasma processing apparatus and the like, and increases the cost of a window product. The present invention has been made in view of the above-mentioned conventional problems, and an object of the present invention is to provide a window having improved adhesive coatability and excellent adhesive strength, and a method of integrally molding the window.

[0005]

According to the present invention, a plastic glass is provided.
A window having a molding formed integrally with a peripheral portion of the plastic glass, wherein the plastic glass has an irregular surface formed on the peripheral portion, and a hard coat treatment layer and an adhesive are formed on the irregular surface. Agent layers are sequentially provided,
The molding is provided integrally on the adhesive layer .
And the surface of the hard coat treatment layer is
A window having an uneven shape along an uneven surface .

The irregular surface may have any shape, such as an irregular grain pattern, a regular irregular shape, a straight or curved groove. The depth of the uneven surface is preferably 5 to 50 μm. If the thickness is less than 5 μm, the wettability between the adhesive and the plastic glass is poor. If the thickness is more than 50 μm, it is too deep, and the problem of poor coating of the convex portion is likely to occur. The peripheral portion is a portion to which an adhesive is applied, but both portions may be completely the same or slightly different. That is, either of them may protrude slightly.

[0007] The hard coat treatment layer is formed prior to the application of the adhesive as in the prior art.
The surface of this hard coat treatment layer is
Has an uneven shape along the uneven surface of the periphery of the lath
(See FIG. 8). As the hard coat treatment layer, there is a polysiloxane-based silicon hard coat treatment agent such as trimethoxysilane. Further, there is a UV (ultraviolet) curing hard coat treating agent such as a thiolene type or acrylic type radical polymerization system such as polyester or polyacrylate, or a cationic polymerization system such as epoxy resin.

The hard coat treatment layer is formed by immersing the plastic glass in the treatment agent as described above, or by applying a roll. As a result, the hard coat treatment layer is formed on the surface .
See) . Thus, this hard coat processing layer has a thickness of 5 to 10 μm.
m is preferable. If it is less than 5 [mu] m, the surface protection of plastic glass is insufficient, also becomes shallower the irregularities in the hard coating layer exceeds 10 [mu] m, wettability of the adhesive may be reduced.

[0009] Examples of the plastic glass include injection-molded products such as polycarbonate, acrylic, and ABS resin. As the adhesive, nylon type,
There is an adhesive such as urethane. Examples of the resin molding include polyvinyl chloride, urethane, polyolefin, and the like. The resin molding is formed integrally with the periphery of plastic glass by injection molding.

[0010] Next, as a method of manufacturing the above-mentioned window integrally molded product, for example, a hard coat treatment is performed on the surface of plastic glass, and then an adhesive is applied to the periphery thereof. In a method of injecting molding resin into the peripheral portion and integrally molding a window in which the molding is integrally joined to the peripheral portion of the plastic glass, an uneven surface is formed on the peripheral portion of the plastic glass. and then along the uneven surface of the peripheral portion line a hard-coated on the surface
There is a window integral molding method in which a hard coat treatment layer having an irregular shape is formed and then an adhesive is applied.

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

Further, as another method of forming the uneven surface,
For example, for plastic glass once molded,
There is a method of performing sandblasting on the peripheral portion. This sand blasting method is a method in which hard particles such as stainless steel, SiC (silicon carbide), and carborundum are beaten against the peripheral edge together with a high-speed air flow to form the uneven surface. Fine particles having a diameter of 0.1 to 1.0 mm are used as the hard particles. The particle collision velocity on the plastic glass surface is 30-100 m /
Seconds.

According to the above sandblasting process, the irregular surface can be provided at an arbitrary portion irrespective of the shape of the plastic glass and the area and the shape of the peripheral portion forming the irregular surface. In addition, the uneven surface can be provided simultaneously with the molding of the plastic glass, and the process can be shortened.

[0014]

In the present invention, a plastic glass has an irregular surface on the periphery thereof, and the surface is covered with a hard coat treatment layer. Also, this
The surface of the hard coat treatment layer is made of the above plastic glass
Has an uneven shape along the uneven surface of the periphery of
8). Therefore, the wettability of the adhesive to the peripheral portion is improved, and the adhesive can be uniformly applied to the peripheral portion of the plastic glass via the hard coat treatment layer . For this reason, the plastic glass and the Mall, the hard
Strong adhesion can be achieved via the coating layer . Also, the manufacturing cost is low. Therefore, according to the present invention,
A window with excellent adhesive strength and excellent adhesive strength
And an integral molding method thereof.

[0015]

Embodiment 1 A window and an integral molding method according to an embodiment of the present invention will be described with reference to FIGS. In the integrally formed window of this example, FIG.
As shown in the state of the joining portion between the molding and the molding 4, a grain pattern 25 is formed on the surface of the plastic glass 3, and a surface having an irregular shape along the irregular surface of the grain pattern is formed thereon.
Hard coating layer 51, further adhesive thereon 5
The molding 4 is integrally provided on the adhesive 52.

Next, a method of manufacturing the above-described integrally formed window will be described. First, the method of forming the plastic glass will be described. As shown in FIG.
The whole is provided with a grain pattern 25 as an uneven surface. Such a plastic glass 3 is manufactured using a mold 1 shown in FIG.

The molding die 1 comprises a lower die 11 and an upper die 12. The lower mold 11 has a right-angled triangular cavity 13 for molding plastic glass. Inside the cavity 13, as shown in FIGS.
The grain pattern 21 is formed. Similarly, the upper mold 12 has a cavity 14 as shown in FIG.
A grain pattern 21 is formed on the peripheral edge of the cavity, similarly to 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 molded portion by the cavities 13 and 14, and the molten plastic is formed therein. The glass material is injected, cooled and solidified. As a result, as shown in FIG. 5, the plastic glass 3 having the grain pattern 25 on the peripheral portion 31 is obtained.

Next, the entire surface of the plastic glass 3 is subjected to a hard coat treatment by a conventional method. This
The surface of the grain pattern 25 on the peripheral portion 31 is
Hard coat having an uneven shape along the uneven surface
A treatment layer is formed. As shown in FIG. 6, the plastic glass 3 having been subjected to the hard coating is
6 is inserted into the mold. Then, the resin 41 is poured into the mold, cooled and solidified, and as shown in FIGS. 7 and 8, an integrally molded product of a window in which the molding 4 is integrally fixed to the peripheral portion of the plastic glass 3 is obtained.

In the molding die shown in FIG.
And the upper mold 46, when they are combined, the cavity 4
The section shape of the molding 4 is formed by 51 and 461. The upper and lower mold recesses 45 are used.
No molding resin flows into 2,462. As indicated above, according to this example method, a plastic glass 3 and molding 4, emboss pattern design 25 having a concave convex surface, similarly uneven
Hard coat processing layer 51 having a shape,
It is possible to obtain a window that is integrally and firmly joined through the adhesive 52 that has been cut into the inside .

Example 2 In Example 1, plastic glass 3 of a polycarbonate material having a grain pattern 25 formed at a peripheral portion (width of about 1 cm from the peripheral end) was formed. 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, an adhesive of a urethane material was applied to the peripheral portion 31 to a thickness of about 10 μm. Then, using a molding die composed of the lower die 45 and the upper die 46 shown in FIG. 6, a polyvinyl chloride resin is injected into the above-mentioned peripheral portion, and the plastic glass 3 and the molding 4 are integrally formed in a window (FIG. 9) was obtained.

[0023] In the above, the adhesive, formed on the surface of the grain pattern of the peripheral portion, the unevenness of the hard coat treatment layer shape
Was applied with good wettability on the surface of , and was uniformly applied. In the window, the plastic glass 3 and the molding 4 were firmly joined.

Example 3 In Example 1, the formation of a grain pattern on the periphery of the plastic glass was performed by sandblasting. That is, SiC particles having a particle diameter of 0.3 mm were made to collide with the peripheral edge 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 at the peripheral edge. Thereafter, the window was integrally formed in the same manner as in Example 1.

[Brief description of the drawings]

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

FIG. 2 is an enlarged plan view of a portion A in FIG.

FIG. 3 is an enlarged sectional view of a portion B in FIG. 4;

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

FIG. 5 is a front view of a plastic glass having a grained pattern on a peripheral edge in the first embodiment.

FIG. 6 is a cross-sectional view showing a state at the time of forming a window in the first embodiment.

FIG. 7 is a cross-sectional view showing a joined state between the plastic glass and the molding according to the first embodiment.

FIG. 8 is an enlarged sectional view of a portion C in FIG. 7;

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

[Explanation of symbols]

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

Claims (5)

(57) [Claims] 1. A window having a plastic glass and a molding formed integrally with the periphery of the plastic glass, wherein the plastic glass has an irregular surface formed on the periphery. A hard coat treatment layer and an adhesive layer are sequentially provided thereon , and the molding is integrally provided on the adhesive layer , and the surface of the hard coat treatment layer has irregularities on the peripheral portion.
A window having an uneven shape along a surface . 2. The window according to claim 1, wherein the depth of the uneven surface is 5 to 50 μm. 3. The window according to claim 1, wherein the thickness of the hard coat treatment layer is 5 to 10 μm. 4. The hard coat treatment layer according to claim 1, wherein the hard coat treatment layer is made of one of a polysiloxane-based silicon hard coat treatment agent and a radical polymerization-based or cationic polymerization-based hardening treatment agent. One or more types of windows. 5. A plastic glass surface is subjected to a hard coat treatment, and then an adhesive is applied to the periphery thereof.
Then, the plastic glass is put into a molding die, a molding resin is injected into the peripheral portion, and a window in which the molding is integrally joined to the peripheral portion of the plastic glass is integrally molded. Form an uneven surface on the periphery,
Then the peripheral portion I line A hard-coated on the surface
Hard coat treatment with irregular shape along irregular surface
A method for integrally forming a window , comprising forming a layer and thereafter applying an adhesive.