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Functional film, sound-insulating glass comprising glass having said functional film bonded thereto, laminated glass, base member for decorative film, and method for producing functional film

A technology of functional film and manufacturing method, applied in glass/slag layered products, other household appliances, chemical instruments and methods, etc., can solve problems such as uneven existence, and achieve the effect of excellent adhesion resistance

Inactive Publication Date: 2017-08-29
KONICA MINOLTA INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0026] The present invention was made in view of the above-mentioned problems and situations, and the problem to be solved is to provide a functional film in which one of at least two resins contained in the film is unevenly distributed although the functional film is a single layer. It exists on the surface, has different physical properties on both sides of the film and inside, and does not cause wrinkles that are a problem in multilayer films, and has excellent adhesion resistance

Method used

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  • Functional film, sound-insulating glass comprising glass having said functional film bonded thereto, laminated glass, base member for decorative film, and method for producing functional film
  • Functional film, sound-insulating glass comprising glass having said functional film bonded thereto, laminated glass, base member for decorative film, and method for producing functional film
  • Functional film, sound-insulating glass comprising glass having said functional film bonded thereto, laminated glass, base member for decorative film, and method for producing functional film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0336] Example 1

[0337] "Making of Functional Film 101"

[0338] 〔Preparation of mucilage〕

[0339] A cement of the following composition was prepared. First add dichloromethane and ethanol in a pressurized dissolving tank. An acrylic resin as resin 1 and CAP (cellulose acetate propionate) as resin 2 were charged into a pressurized dissolving tank containing a mixed solution of methylene chloride and ethanol while stirring. Heat it up and dissolve it completely while stirring. This was filtered using Azumi filter paper No. 244 manufactured by Azumi Filter Paper Co., Ltd., to prepare a main dope.

[0340] Acrylic resin (copolymer of methyl methacrylate: methyl acrylate = 97:3 (mass ratio), weight average molecular weight 280000) 30 parts by mass

[0341] CAP (weight average molecular weight 200000, total acyl substitution degree 2.75, acetyl substitution degree 0.19, propionyl substitution degree 2.56) 70 parts by mass

[0342] ME (solvent) 400 parts by mass

[0343] P...

Embodiment 2

[0379] "Making of Functional Films 201~208, 210~217"

[0380] In the making of the functional film 101 of Example 1, triethylene glycol bis(2-ethylhexanoate) (manufactured by Proviron Corporation) (abbreviated as HBS1 in the table) as HBS was used in the preparation of the main glue. ) and the type and amount of the resin were changed as shown in Table 2, and then, the functional films 201 to 208 and 210 to 217 were produced in the same manner as the production of the functional film 101 .

[0381] "Making of Functional Film 209"

[0382] In the production of the functional film 204, 2.5 parts by mass of the following UV1 as a benzotriazole-based ultraviolet absorber was further added to the preparation of the main dope, and the functional film 204 was made in the same manner as the functional film 204 except that Film 209.

[0383] UV1: Tinuvin 928 (manufactured by BASF Japan Co., Ltd.)

[0384] "Evaluation of Functional Films 201-217"

[0385] (Stress at elongation)

[...

Embodiment 3

[0412] Using the functional films 201 to 217 prepared in Example 2, a film having an adhesive layer on both sides was sandwiched between two transparent float glasses (manufactured by Nippon Sheet Glass Co., Ltd.) with a thickness of 3.0 mm, and the films were laminated using a vacuum laminator. Hold at 90 degreeC for 30 minutes, perform vacuum pressing, and manufacture the laminated glass 301-317 bonded to two sheets of float glass. The adhesive layer used an adhesive acrylic adhesive (Nissetsu SZ-7103, manufactured by Nippon Carbide) in the same manner as in Example 2, and was applied so as to have a film thickness of 9 μm after drying.

[0413] For laminated glasses 301 to 317, the sound insulation is judged based on the difference (dB) between the comparison glass and the laminated glass in the overlapping region (2000 Hz) generated in the float glass, that is, the sound transmission loss increase value, as follows Grading.

[0414] ◎: The sound transmission loss improvem...

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Abstract

The present invention addresses the problem of providing: a functional film which consists of a single layer, and in which one of at least two resins contained therein is localized in surface areas, the physical properties on the both surfaces thereof are different from those in the inside part thereof, and which never undergoes the occurrence of wrinkling that is a problem in multi-layer films and has excellent sticking resistance; and others. The functional film according to the present invention contains at least a resin 1 and a resin 2, said functional film being characterized in that the ratio of the content of the resin 1 to the content of the resin 2 varies in the functional film as observed in the direction of thickness of the functional film, and the content ratio (% by mass) of the resin 1 meets the following relation: (the content ratio in a center part) < (the content ratio in surface B) <=(the content ratio in surface A), wherein the surface A refers to a zone lying from one outermost surface of the functional film to a depth of 200 nm as observed in the thickness direction of the functional film, the surface B refers to a zone lying from the other outermost surface of the functional film to a depth of 200 nm as observed in the thickness direction of the functional film, and the center part refers to a zone lying inside relative to the surface A and the surface B.

Description

technical field [0001] The present invention relates to a functional film, a soundproof glass bonded to glass, a laminated glass, a base material for a decorative film, and a method for producing the functional film. More specifically, it relates to a functional film, a sound-insulating glass bonded to glass, a laminated glass, a base material for a decorative film, and a method for producing a functional film. The functional film is a single layer, but the film contains One of the at least two resins is unevenly present on the surface, and has different physical properties on both sides and inside of the film, and does not cause wrinkles that are a problem in multilayer films, and has excellent adhesion resistance. Background technique [0002] Currently, plastic films are used for various purposes such as weight reduction, flexibility, high transparency, environmental protection, and cost reduction. In addition, various performances are required in accordance with the app...

Claims

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Application Information

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IPC IPC(8): C08J5/18B29C41/32B32B17/10C03C17/32C03C27/12C08L101/00E06B3/70B29L7/00B29L9/00
CPCB32B17/10B29C41/32C03C17/32C08J5/18C08L101/00E06B3/70
Inventor 铃木和义小岛良和久保伸夫福坂洁木内宏佳北弘志
Owner KONICA MINOLTA INC
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