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Laminated body and its manufacturing method

A manufacturing method and a technology for a laminated body, which are applied in the directions of chemical instruments and methods, layered products, glass/slag layered products, etc., can solve the problems of heavy weight, difficulty in realizing lightweight portable electronic equipment, and high specific gravity. The effect of preventing breakage and peeling

Active Publication Date: 2020-12-01
NIPPON ELECTRIC GLASS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since glass is a heavy substance with a high specific gravity, it is difficult to reduce the weight of portable electronic devices if only glass sheets are used to achieve many characteristics required for protective covers.

Method used

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  • Laminated body and its manufacturing method
  • Laminated body and its manufacturing method
  • Laminated body and its manufacturing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0073] Manufacture the second embodiment described above (cf. figure 2 ) of the test body (Example) of the laminated body, and confirmed its effect. In this test body, a polycarbonate plate of 151 mm×201 mm and a thickness of 3.0 mm was used as a resin plate, and a glass sheet of 148 mm×198 mm and a thickness of 200 μm was used as each glass piece. In addition, the non-alkali glass (product name: OA-10G) by NEC Glass Co., Ltd. was used for each glass piece. In addition, as each adhesive layer, an adhesive layer made of ethylene vinyl acetate copolymer resin (EVA) having a thickness of 150 mm×200 mm and a thickness of 400 μm was used.

[0074] Glass sheets were laminated on both sides of a polycarbonate plate via an adhesive layer, and heat-compression bonding was performed using an autoclave apparatus. At this time, thermocompression bonding was performed under conditions of a heating temperature of 120° C., a pressure of 1 MPa, and a thermocompression bonding time of 1 hou...

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Abstract

The laminated body (1) is a laminated body in which glass sheets (3, 4) are laminated and integrated on both surfaces (2a, 2b) of a resin plate (2) via an adhesive layer (5, 6). This laminated body (1) is equipped with the protruding part (7~ 9). The protrusions (7-9) are in contact with at least a part of the end faces (3c, 4c) of the glass sheets (3, 4).

Description

technical field [0001] The present invention relates to an improvement technique of a laminate obtained by laminating and integrating a resin plate and a glass sheet through an adhesive layer. Background technique [0002] In recent years, portable electronic devices such as mobile phones (smart phones, etc.), tablet PCs, and portable game machines have become popular because they are not limited by the place of use and have good portability. In these portable electronic devices, miniaturization and weight reduction are essential in order to maintain good portability. However, if the screen size of the portable electronic device is reduced along with the miniaturization, there are problems such as reduced visibility of information displayed on the screen and extremely reduced convenience as the portable electronic device. Therefore, even if the portable electronic device is miniaturized, it is necessary to secure a large screen size. For this reason, in portable electronic...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03C27/12B32B7/12B32B17/10
CPCB32B7/12B32B17/10036B32B17/10293B32B17/10706B32B17/10788B32B17/10889B32B17/10005B32B2369/00
Inventor 滨野宪司泷本博司
Owner NIPPON ELECTRIC GLASS CO LTD