Interlayer 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 inhibiting the rise of YI value

Inactive Publication Date: 2017-08-18
SEKISUI CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This void is particularly likely to be generated when light, heat, etc. are applied to the laminated glass.

Method used

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  • Interlayer for laminated glass, and laminated glass
  • Interlayer for laminated glass, and laminated glass
  • Interlayer for laminated glass, and laminated glass

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0178] Preparation of Composition X for forming intermediate film (first layer):

[0179] Mixed polyvinyl acetal resin (polyvinyl butyral (PVB) resin, polyvinyl alcohol (PVA) has an average degree of polymerization of 1700, a hydroxyl content of 30 mol%, a degree of acetylation of 1 mol%, and a degree of acetalization of 69 mol%) 100 parts by weight, 40 parts by weight of triethylene glycol di-2-ethylhexanoate (3GO) as a plasticizer, TINUVIN 765 (manufactured by BASF Corporation, N-C (alkyl) type, molecular weight 509) 0.2 parts by weight, 0.2 parts by weight of IRGANOX PS800FL (manufactured by BASF Corporation, an antioxidant having a sulfur atom, molecular weight 514), 0.2 parts by weight of BHT (2,6-di-tert-butyl-p-cresol, molecular weight 220), and magnesium, The amount of magnesium was such that the content of magnesium in the intermediate film was 100 ppm, and composition X for forming an intermediate film was obtained.

[0180] Production of interlayer film:

[0181] ...

Embodiment 2～14 and comparative example 1～4

[0185] An interlayer film and a laminated glass were produced in the same manner as in Example 1, except that the types of components contained in the interlayer film and the contents of the components were set as shown in Tables 1 and 2 below.

Embodiment 15

[0187] Preparation of Composition X for Forming the First Layer:

[0188] Mixed polyvinyl acetal resin (polyvinyl butyral (PVB) resin, polyvinyl alcohol (PVA) has an average degree of polymerization of 2300, a hydroxyl content of 23 mol%, a degree of acetylation of 12.5 mol%, a degree of acetalization of 64.5 mol%) 100 parts by weight, 60 parts by weight of triethylene glycol di-2-ethylhexanoate (3GO) as a plasticizer, TINUVIN 765 (manufactured by BASF Corporation, N-C (alkyl) type, molecular weight 509) 0.2 parts by weight, 0.2 parts by weight of IRGANOX PS800FL (manufactured by BASF Corporation, an antioxidant with a sulfur atom, molecular weight 514), 0.2 parts by weight of BHT (2,6-di-tert-butyl p-cresol, molecular weight 220), obtained for Composition X forming the first layer.

[0189] Preparation of composition Y for forming the second and third layers:

[0190] Polyvinyl acetal (PVA) resin (polyvinyl butyral (PVB) resin, polyvinyl alcohol (PVA) with an average degree...

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Abstract

The present invention provides an interlayer for laminated glass, the interlayer making it possible to suppress the occurrence of gaps at the ends of the laminated glass and suppress an increase in the YI value at the ends of the laminated glass. This interlayer for laminated glass has a single-layer structure or a structure of two or more layers, and contains a polyvinyl acetal resin, a plasticizer, a hindered amine light stabilizer, an antioxidant having sulfur atoms, and an antioxidant being different from the antioxidant that has sulfur atoms and having a phenol skeleton.

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, rail 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 yellowing tendency and has high transmittance to UV-A rays and visible light. Rays have low transmittance. This intermediate film cont...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C27/12C08K5/13C08K5/17C08K5/36C08L29/14
CPCB32B17/10018B32B17/10036B32B17/10678B32B17/10688B32B2250/03B32B2367/00B32B17/10605B32B17/10761B32B27/20B32B27/306B32B27/22B32B27/08B32B2264/105C03C27/10B32B2419/00B32B2605/006C08J5/18C08J2329/14C08K5/0016C08K5/005
Inventor 吉田章吾
Owner SEKISUI CHEM CO LTD
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