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Intermediate film for laminated glass, and laminated glass

A technology of laminated glass and interlayer film, which can be used in glass/slag layered products, applications, household appliances, etc., and can solve the problem of discoloration of the interlayer

Active Publication Date: 2015-03-11
SEKISUI CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if a laminated glass is manufactured using an interlayer containing hydroxyterephthalate, there is a problem that the interlayer will be discolored

Method used

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  • Intermediate film for laminated glass, and laminated glass
  • Intermediate film for laminated glass, and laminated glass
  • Intermediate film for laminated glass, and laminated glass

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0088] (1) Resin composition for forming light-emitting layer

[0089] 60 parts by weight of triethylene glycol di-2-ethylhexanoate (3GO) is added as a luminescent material having a terephthalate structure, which is a compound having a structure represented by the above general formula (1). A luminescent plasticizer solution was prepared using 1.5 parts by weight of ethyl-2,5-dihydroxyterephthalate ("diethyl 2,5-dihydroxyterephthalate" manufactured by Aldrich). The total amount of the obtained plasticizer solution and the polyvinyl butyral obtained by acetalizing polyvinyl alcohol having a degree of polymerization of 2300 with n-butyraldehyde (13 mol % of acetyl groups, 22 mol % of hydroxyl groups) %, butyralization degree 65 mol%) 100 parts by weight were fully kneaded with a stirring roller to prepare a resin composition for forming a light-emitting layer.

[0090] (2) Resin composition for forming the first and second resin layers

[0091] Magnesium acetate was added to 4...

Embodiment 2

[0097] As a luminescent material having a terephthalate structure, instead of diethyl-2,5-dihydroxy terephthalate (manufactured by Aldrich "2 , 5-dihydroxy terephthalate ") 1.5 parts by weight, use the compound that has the structure represented by the above-mentioned general formula (2), that is, diethyl-2,5-diamino terephthalate ( Aldrich) was 1.5 parts by weight, and the interlayer film for laminated glass and laminated glass were obtained in the same manner as in Example 1.

Embodiment 3～25

[0098] (Examples 3-25, Comparative Examples 1-5)

[0099] An interlayer film for laminated glass and a laminated glass were obtained in the same manner as in Example 1, except that the resin compositions and thicknesses for forming the light emitting layer and the first and second resin layers were changed as shown in Tables 2 to 4.

[0100] (evaluate)

[0101] The laminated glasses obtained in Examples 1 to 25 and Comparative Examples 1 to 5 were evaluated by the following methods. The results are shown in Tables 1-4.

[0102] (1) Evaluation of Luminescence

[0103] The obtained laminated glass was irradiated with light to the entire surface of the laminated glass in a dark room using a High Power xenon light source (manufactured by Asahi Spectro Co., Ltd., product number REX-250, irradiation wavelength: 405 nm). When observed visually, the case where light emission was confirmed in the central portion of the laminated glass was evaluated as "◯", and the case where light e...

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Abstract

The present invention provides an intermediate film for a laminated glass whereby it is possible to display an image having high contrast by being irradiated with rays of light and to control the adhesiveness while inhibiting discoloration. Moreover, the purpose of the present invention is to provide a laminated glass containing said intermediate film for a laminated glass. The present invention is an intermediate film for a laminated glass, the intermediate film having: a light-emitting layer which contains polyvinyl acetal and a light-emitting material having a terephthalic acid ester structure and which has a magnesium element concentration of 80 ppm or less; and a first resin layer which is disposed on one surface of the light-emitting layer and which contains polyvinyl acetal and an adhesive force regulating agent.

Description

technical field [0001] The present invention relates to an interlayer film for laminated glass which can display a high-contrast image by irradiating light, and can control adhesiveness while suppressing discoloration. In addition, the present invention relates to a laminated glass including the interlayer film for laminated glass. Background technique [0002] Even if laminated glass is damaged by external impact, glass shards rarely scatter and are safe. Therefore, it is widely used as front glass, side glass, and rear glass of vehicles such as automobiles, and window glass of aircraft and buildings. The laminated glass includes, for example, a laminated glass in which an interlayer film for laminated glass containing a liquid plasticizer and polyvinyl acetal resin is interposed between at least a pair of glasses and integrated. [0003] In recent years, there has been an increasing demand to display instrumentation displays such as speed information as vehicle travel dat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C27/12B32B17/10B32B27/30C08K5/12C08L29/14
CPCC08L29/14B32B27/30B32B17/10C08K5/12B32B17/10036B32B17/10669B32B17/10688B32B17/10761B32B27/08B32B2307/422B32B2250/24B32B2457/20Y10T428/31645Y10T428/31909G02B27/0101
Inventor 太田祐辅伊豆康之中岛大辅深谷重一
Owner SEKISUI CHEM CO LTD
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