Unlock instant, AI-driven research and patent intelligence for your innovation.

Intermediate film for laminated glass, and laminated glass

A technology of laminated glass and interlayer film, which is applied in the direction of glass/slag layered products, layered products, transportation and packaging, etc., and can solve the problem of high turbidity value of laminated glass

Inactive Publication Date: 2012-05-30
SEKISUI CHEM CO LTD
View PDF4 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, when an ultraviolet absorber is blended into an interlayer film for laminated glass containing a thermoplastic elastomer such as ethylene-vinyl acetate copolymer, ethylene-acrylic acid copolymer, or polyurethane, there is a problem that the haze value of the resulting laminated glass is high.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • 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

[0070] (1) Production of interlayer film for laminated glass

[0071] Ethylene-vinyl acetate copolymer resin (28% by mass of vinyl acetate content), the mixture of the above formula (1-1) and formula (1-2) (the mixing ratio is 30 to 70 by weight) and N-( 2-aminoethyl) 3-aminopropylmethyldimethoxysilane is mixed, the content that obtains the mixture of above-mentioned formula (1-1) and formula (1-2) is 0.3% by weight, N-(2-amino Ethyl) a resin composition in which the content of 3-aminopropylmethyldimethoxysilane is 0.1% by weight. The obtained resin composition was well mixed, and an interlayer film for laminated glass having a film thickness of 500 μm was produced by an extruder.

[0072] (2) Production of laminated glass

[0073] The obtained interlayer film for laminated glass was pinched between two sheets of transparent float glass (300 mm in length x 300 mm in width x 2.5 mm in thickness: transparent glass) to form a laminate.

[0074]Next, the laminated body was set ...

Embodiment 2～21

[0075] (Examples 2-21, Comparative Examples 1-10)

[0076] Except having changed to the composition of Tables 1-6, it carried out similarly to Example 1, and produced the interlayer film for laminated glass, and laminated glass.

[0077] (evaluate)

[0078] The following evaluations were performed on the laminated glasses obtained in Examples and Comparative Examples.

[0079] The results are shown in Tables 1-6.

[0080] (1) Transmittance evaluation

[0081] Visible light transmittance Tv of the obtained laminated glass (length 300 mm x width 300 mm) was determined in accordance with JIS R 3106 (1998) using a spectrophotometer ("U-4000" manufactured by Hitachi, Ltd.).

[0082] Furthermore, using a spectrophotometer ("U-4000" manufactured by Hitachi, Ltd.), the transmittance of the laminated glass in each wavelength of 350nm, 360nm, 370nm, and 380nm was measured, and the average value T of the transmittance (350-380nm ).

[0083] (2) Determination of turbidity value

[0...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

Disclosed is an intermediate film for laminated glass, which is capable of preventing deterioration of constituent materials other than the intermediate film for laminated glass in the laminated glass, interior materials for buildings and works of art, while using a thermoplastic elastomer and maintaining high transparency. Specifically disclosed is an intermediate film for laminated glass, which contains a thermoplastic elastomer as well as a compound represented by general formula (1), a compound represented by general formula (2), or a mixture of a compound represented by general formula (1) and a compound represented by general formula (2). In formula (1), R1 represents a hydrogen atom or a chlorine atom; R2 represents an alkyl group having a linear structure and 3-10 carbon atoms or an alkyl group having a branched structure and 3-10 carbon atoms; and R3 represents an alkyl group having 3-10 carbon atoms. In formula (2), R4 represents an alkyl group having 1-5 carbon atoms; and R5 represents a hydrogen atom or an alkyl group having 1-3 carbon atoms.

Description

technical field [0001] The present invention relates to an interlayer film for laminated glass that uses a thermoplastic elastomer and maintains high transparency while preventing deterioration of building interior materials, artwork, and constituent materials other than the interlayer film for laminated glass in laminated glass. In particular, the present invention relates to the use of a thermoplastic elastomer that does not contain a plasticizer, and while maintaining high transparency, it is possible to prevent deterioration of building interior materials, works of art, and structural materials other than the interlayer film for laminated glass in laminated glass, etc. interlayer film for laminated glass. Background technique [0002] Even if the laminated glass is damaged by an external impact, glass fragments rarely scatter, so it is safe. Therefore, laminated glass is widely used as window glass of buildings and the like. Examples of the laminated glass include a la...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C03C27/12C09K3/00
CPCB32B17/10036B32B17/10C03C27/10C08K5/3475B32B17/10788C08K5/3492B32B17/10357B32B17/10678Y10T428/31645C08L23/0853B32B17/10005B32B2367/00
Inventor 八田文吾
Owner SEKISUI CHEM CO LTD