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Intermediate film for laminated glass, and laminated glass

A technology of laminated glass and interlayer film, applied in glass/slag layered products, layered products, synthetic resin layered products, etc., to achieve the effect of not easy to void and inhibit the rise of YI value

Inactive Publication Date: 2016-01-06
SEKISUI CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These voids are particularly likely to occur when light, heat, etc. are applied to laminated glass

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

[0180] Preparation of Composition X for Forming the First Layer:

[0181] Polyvinyl acetal resin (polyvinyl butyral (PVB) resin, polyvinyl alcohol (PVA) with an average degree of polymerization of 2300, a hydroxyl content of 23.0 mol%, a degree of acetylation of 12.5 mol%, butyralized 64.5 mol %) 100 parts by weight, 60 parts by weight of triethylene glycol di-2-ethylhexanoate (3GO) as a plasticizer, TINUVIN770DF (manufactured by BASF Corporation, N-H (hydrogen atom) type, molecular weight 481 ) 0.2 parts by weight and BHT (2,6-di-tert-butyl p-cresol, molecular weight 220) 0.2 parts by weight, Adekastab3050 (manufactured by ADEKA Corporation, phosphorus-containing antioxidant, molecular weight 503) 0.2 parts by weight were mixed to obtain Composition X for forming the first layer.

[0182] Preparation of composition Y for forming the second and third layers:

[0183] Polyvinyl acetal resin (polyvinyl butyral (PVB) resin, polyvinyl alcohol (PVA) with an average degree of poly...

Embodiment 2～30 and comparative example 1～5

[0189] As shown in the following Tables 1 to 5, an intermediate film was prepared in the same manner as in Example 1, except that the types and contents of the components contained in the first layer, the second layer, and the third layer were set. and laminated glass.

Embodiment 31

[0191] Preparation of Composition X for Forming Intermediate Film (First Layer):

[0192] Polyvinyl acetal resin (polyvinyl butyral (PVB) resin, polyvinyl alcohol (PVA) with an average degree of polymerization of 1700, a hydroxyl content of 30.0 mol%, a degree of acetylation of 1.0 mol%, butyralized 69.0 mol %) 100 parts by weight, 40 parts by weight of triethylene glycol di-2-ethylhexanoate (3GO) as a plasticizer, TINUVIN770DF (manufactured by BASF Corporation, N-H (hydrogen atom) type, molecular weight 481 ) 0.2 parts by weight, BHT (2,6-di-tert-butyl p-cresol, molecular weight 220) 0.2 parts by weight, Adekastab3050 (manufactured by ADEKA Corporation, phosphorus-containing antioxidant, molecular weight 503) 0.2 parts by weight, and the content is in the middle Magnesium was mixed in an amount up to 60 ppm in the film to obtain a composition X for forming an intermediate film.

[0193] Preparation of interlayer film:

[0194] The composition for forming an intermediate fil...

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Abstract

An intermediate film for laminated glass is provided which is not prone to creating gaps at the ends of the laminated glass, and which can suppress increases in the YI value at the ends of the laminated glass. This intermediate film for laminated glass has a one-layer structure or a two-or-more layer structure, and throughout the whole, the intermediate layer contains a polyvinyl acetal resin, a plasticizer, a hindered amine light stabilizer and a phosphorous-containing antioxidant.

Description

technical field [0001] The present invention relates to an interlayer film for laminated glass used for laminated glass. In addition, the present invention relates to a laminated glass using the above-mentioned interlayer film for laminated glass. Background technique [0002] Even if laminated glass is damaged by external impact, the amount of glass shards scattered is small, and it is excellent in safety. Therefore, the above-mentioned laminated glass is widely used in automobiles, railway vehicles, aircraft, ships, buildings, and the like. The above-mentioned laminated glass can be produced by sandwiching an interlayer film for laminated glass between a pair of glass plates. [0003] As an example of the above-mentioned interlayer film for laminated glass, an interlayer film is disclosed in the following Patent Document 1, which has a low tendency to yellow, has a high transmittance to UV-A rays and visible light, and has a high transmittance to UV-B rays. Rays have lo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C27/12B32B17/10B32B27/30C08L29/14
CPCB32B27/08B32B27/22B32B27/306B32B2250/40B32B2605/00B32B17/10036B32B2250/03B32B2307/412B32B2307/102B32B17/10678B32B17/10761B32B17/10688B32B27/18B32B2605/006B32B27/30C03C27/08C08L29/14B32B17/1055
Inventor 吉田章吾岩本达矢岛本伦男
Owner SEKISUI CHEM CO LTD
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