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Laminated film for bonding and light-transmitting laminate

A laminated film and light-transmitting layer technology, applied in the direction of synthetic resin layered products, layered products, glass/slag layered products, etc., can solve the problem that the impact resistance and penetration resistance of automobile glass cannot be satisfied enough etc. to achieve high utilization rate, excellent impact resistance and penetration resistance characteristics, and thin thickness

Pending Publication Date: 2022-06-28
爱思开迈克沃有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the head-up display device has the following basic problem: Since the projector image is projected on the windshield of the car, the image will be reflected by both surfaces (inner surface and outer surface) of the windshield, and the driver not only perceives the The desired first image, while also perceiving a slightly weaker ghost image (ghost image)
[0006] However, such a wedge-shaped interlayer cannot satisfy sufficient impact resistance, penetration resistance properties required for automotive glass, or properties such as noise shielding etc. in the case of a thin thickness.

Method used

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  • Laminated film for bonding and light-transmitting laminate
  • Laminated film for bonding and light-transmitting laminate
  • Laminated film for bonding and light-transmitting laminate

Examples

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preparation example Construction

[0163] According to another embodiment of the present invention, a method for producing a laminated film for bonding includes: a co-extrusion step, including a process of extruding a polyvinyl acetal resin-containing composition for forming a base layer at an extrusion port of the base layer; and The process of extruding the composition for forming a reinforcing layer containing ionomer, polyethylene terephthalate resin or polyimide resin at the extrusion port of the reinforcing layer; in the forming step, after the co-extrusion The composition for forming a base layer and the composition for forming a reinforcing layer are moved to a feed block, and the laminated film 100 for bonding having the base layer 300 and the reinforcing layer 500 is prepared, and the laminated film 100 for bonding has a The first end 120 and the second end 140 of the direction perpendicular to the extrusion direction (the direction in which the prepared laminated film for bonding moves), the base laye...

preparation example

[0251] The individual ingredients used in the following examples are as follows.

[0252] The first polyvinyl butyral resin: the average degree of polymerization of polyvinyl alcohol is 1700, the hydroxyl group content is 45 mol%, and the acetyl group content is 1 mol%

[0253] The second polyvinyl butyral resin: the average degree of polymerization of polyvinyl alcohol is 2400, the content of hydroxyl groups is 20 mol%, and the content of acetyl groups is 11 mol%

[0254] Plasticizer: Triethylene glycol bis-2-ethylene hexanoate (3G8) (Product source: PROVIST 1766, product of PROVIRON)

[0255] Ionomer: Poly(ethylene-co-methacrylic acid) salt (Product source: SK Innovation, Korea)

Embodiment

[0258] The base layer used a composition for forming a base layer containing 73% by weight of the first polyvinyl butyral resin and 27% by weight of a plasticizer, and the functional layer used a composition for forming a base layer containing 65% by weight of the second polyvinyl butyral resin and 35% by weight The composition for forming a functional layer of a plasticizer, the reinforcing layer uses a composition for forming a reinforcing layer containing 100 wt% of an ionomer, and co-extrudes through an extrusion port to form a base layer, a functional layer and a reinforcing layer. Wait for the third floor.

[0259] The three layers move toward and meet the dimple blocks, respectively, and are shaped to have image 3 Examples of the structure and shape of the bonding laminate film.

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Abstract

The invention relates to a laminated film for bonding and a light-transmitting laminated body. The laminated film for bonding has a first end and a second end facing the first end. The laminated film for bonding comprises: a base layer which contains a polyvinyl acetal resin, shares one surface with the first terminal, and has a shape in which the thickness gradually increases toward the first terminal; and a reinforcing layer sharing one surface thereof with the second end and having a shape in which the thickness thereof gradually decreases toward the second end. When bonded to glass or the like, the composition has excellent impact resistance and penetration resistance, and also has sound insulation performance, and is suitable for use in a head-up display (HUD).

Description

[0001] This application is a divisional application of a patent application with an application number of 2018109170913, an application date of August 13, 2018, and an invention title of "lamination film for bonding and light-transmitting laminate including the same." technical field [0002] The present invention relates to a laminate film for bonding having a triangular or trapezoidal cross section, a method for producing the same, a light-transmitting laminate having the laminate film for bonding that can be effectively used as a windshield for vehicles such as automobiles, and Provides a bonding laminate film and the like that are excellent in impact resistance, penetration resistance, and have excellent noise shielding properties, are thin in thickness, and have sufficient strength. Background technique [0003] Polyvinyl acetal is used as an intermediate layer for laminated glass (safety glass) or light transmissive laminates. Laminated glass is mainly used for buildin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/28B32B27/42B32B27/18B32B27/08B32B27/36B32B17/10
CPCB32B27/281B32B27/42B32B27/18B32B27/08B32B27/36B32B2307/558B32B2307/50
Inventor 李学守金惠珍郑盛真延济源金兴植
Owner 爱思开迈克沃有限公司