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Vinylidene-fluoride resin film

A technology of vinylidene fluoride and polyvinylidene fluoride, which can be used in synthetic resin layered products, other household appliances, transportation and packaging, etc. The effect of permeability and excellent chemical resistance

Active Publication Date: 2020-01-07
DENKA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, acrylic films have some disadvantages. For example, there are cases where deterioration occurs under the action of sunscreen or insect repellent, and if the temperature rises while sunscreen or insect repellant is attached, the acrylic film will whiten.

Method used

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  • Vinylidene-fluoride resin film
  • Vinylidene-fluoride resin film
  • Vinylidene-fluoride resin film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0203] In Example 1, a single-layer vinylidene fluoride-based resin film was produced. The raw materials and production conditions are shown in Table 1 below.

[0204] 50% by mass of 1000HD, 30% by mass of K720C, and 20% by mass of MGSS were premixed in an unmelted state, and then, while adding 10 parts by mass of GM-0449S-2 to 100 parts by mass of the aforementioned mixture, Mix uniformly at a resin temperature lower than 250°C with the aforementioned melt mixing equipment to obtain granular mixture A. The granular mixture A was melted at a screw speed of 50 RPM at a maximum temperature setting of 240° C. in the extruder A described above, and extruded in a film form from a T-die. In the pulling part (which is a hard chrome-plated roller (the arithmetic mean roughness of the surface Ra = 0.2 μm) circulated with cooling water adjusted to a temperature of 45° C. and a sand-containing embossed rubber roller (#600) are pressed together. produced) while pulling the extruded film...

Embodiment 2～4

[0207] In Examples 2 to 4, vinylidene fluoride-based resin films having a single-layer structure were produced as well.

[0208] About Examples 2-4, it manufactured by the method similar to Example 1. The raw materials used, production conditions, and performance are shown in Table 1 below.

[0209]

Embodiment 5

[0211] In Example 5, a laminated film was produced. The raw materials and production conditions of the surface layer and the back layer are shown in Table 2 below. In addition, in Example 5, the ultraviolet absorber was added to the back layer.

[0212] 50% by mass of 1000HD, 30% by mass of K720, and 20% by mass of MGSS were premixed in an unmelted state, and then, while adding GM-0449S-210 parts by mass to 100 parts by mass of the aforementioned mixture, use The aforementioned melt-mixing equipment mixed uniformly at a resin temperature lower than 250° C. to obtain granular mixture A.

[0213] In addition, 20% by mass of K720 and 80% by mass of HBZG60 were pre-mixed in an unmelted state, and then uniformly mixed at a resin temperature lower than 250° C. using the aforementioned melt-mixing equipment to obtain granular mixture B.

[0214] For the granular mixture A, in the aforementioned extruder A, the maximum set temperature in the barrel is 240° C., and it is melted at a sc...

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PUM

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Abstract

Provided is a vinylidene-fluoride resin film which has a matte surface having low gloss and also having low cloudiness and renders the pattern of an underlying decorative sheet highly visible. The vinylidene-fluoride resin film contains particles of a crosslinked acrylic-ester resin, wherein the particles of a crosslinked acrylic-ester resin have an average particle diameter that is 5-40% of the thickness of the vinylidene-fluoride resin film, and the vinylidene-fluoride resin film has an arithmetic mean surface roughness (Ra) of 0.4 micron or greater but less than 2 microns.

Description

technical field [0001] The present invention relates to a vinylidene fluoride-based resin film. Background technique [0002] In the field of automotive decoration, painting and metal plating have been used for a long time. However, in recent years, in order to reduce the weight of the car body and reduce the production line process, there has been a trend to decorate the steering film instead of painting and metal plating. [0003] For example, an operation has been performed in which a body, a panel control panel, etc. of an automobile are decorated with a decorative film, and then covered with a protective layer. [0004] The outermost layer of the decorative film protective layer used in the past is an acrylic film. However, the acrylic film has some disadvantages. For example, it may deteriorate under the action of sunscreen or insect repellant, and if the temperature rises while the sunscreen or insect repellant is attached, the acrylic film may whiten. [0005] In a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J5/18B32B27/30
CPCC08J5/18C08J2327/16C08J2433/12B32B27/308B32B2307/306B32B2307/714B32B27/18B32B2307/412B32B2307/418B32B2307/416B32B2307/408B32B2264/025B32B2307/732B32B2451/00B32B3/30B32B2605/08B32B2270/00B32B2264/303B32B27/304B32B27/08C08F114/22C08F214/22C08F214/28B32B2327/12B32B2333/12B32B27/30B32B2250/02B32B2250/246C08J2413/00C08J2427/16C08L27/16C08L2205/025C08L2205/03
Inventor 永冈洪太泽里正高野敬司
Owner DENKA CO LTD
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