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Multilayer film

A technology of laminated film and surface layer, applied in the direction of coatings, layered products, synthetic resin layered products, etc., can solve the problems of surface damage and surface layer peeling of molding materials.

Active Publication Date: 2016-09-07
TORAY IND INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In particular, moisture present in the air permeates into the molding material, and especially attacks the surface of the molding material, so that the surface of the molding material is damaged or the surface layer is peeled off.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0297] Next, the present invention will be described based on examples, but the present invention is not limited to these examples.

[0298] [urethane (meth)acrylate A]

[0299] [Synthesis of urethane (meth)acrylate A1]

[0300] 50 parts by mass of toluene, 50 parts by mass of an isocyanurate-modified type of 1,6-hexamethylene diisocyanate ("Takenet" (registered trademark) D-170N manufactured by Mitsui Chemicals, Ltd.), 76 parts by mass of polycaprolactone Modified hydroxyethyl acrylate ("Praccel" (registered trademark) FA5 manufactured by Daicel Chemical Industry Co., Ltd.), 0.02 parts by mass of dibutyltin laurate, and 0.02 parts by mass of hydroquinone monomethyl ether were mixed, and kept at 70° C. for 5 Hour. Then, 79 mass parts of toluene were added, and the toluene solution of the urethane (meth)acrylate A1 of 50 mass % of solid content concentration was obtained.

[0301] [Synthesis of urethane (meth)acrylate A2]

[0302] 50 parts by mass of toluene, 67 parts by ma...

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Abstract

A multilayer film which has a surface layer on at least one surface of a supporting base, and which is characterized by satisfying the following condition 1 and condition 2. Condition 1: The logarithmic decrement of the surface layer at 25 DEG C as determined by a rigid pendulum test is 0.1 or more. Condition 2: A resin contained in the surface layer contains the following (1)-(4). (1) a polycaprolactone segment (2) a urethane bond (3) a polysiloxane segment and / or a polydimethyl siloxane segment (4) a tricyclodecyl segment Provided is a multilayer film which achieves a good balance between moldability required for molding materials and scratch resistance due to self-healing properties, while having satisfactory adhesion durability and antifouling properties.

Description

technical field [0001] The present invention relates to a laminated film that not only achieves moldability and scratch resistance required for molding materials, but also is excellent in adhesion durability and antifouling properties. Background technique [0002] For molding materials such as decorative molding, in order to prevent damage during molding and / or damage during use of the molded article, a surface hardening layer may be provided. However, since the elongation of the surface hardened layer following molding is insufficient, cracks occur during molding, or in extreme cases, the film breaks, or the surface hardened layer peels off. Hardened layer; or after molding in a semi-cured state, use heating, active ray irradiation, etc. to make it completely cured, etc. However, since the molded article is processed into a three-dimensional shape, it is very difficult to provide a surface hardened layer in post-processing. In addition, in the case of molding in a semi-cu...

Claims

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Application Information

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IPC IPC(8): B32B27/00B32B27/36B32B27/40C09D167/04C09D175/04C09D183/04
CPCB32B27/00B32B27/36B32B27/40C09D175/04C09D183/04C08G18/672C08G18/44B32B7/02B32B27/08B32B2250/24
Inventor 三羽规文大桥纯平石田康之高田育
Owner TORAY IND INC
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