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Support substrate for surface protection film and surface protection film

A surface protection film and substrate technology, which is applied in applications, household components, household appliances, etc., can solve the problems of easy shrinkage of supporting substrates, and achieve the effect of easy peeling

Inactive Publication Date: 2007-06-20
FUTAMURA CHEM +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the double-layer structure substrate obtained by this structure, there is a problem that the supporting substrate is easily curled due to the residual stress caused by the difference in the cooling rate when the substrate is formed into a film.

Method used

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  • Support substrate for surface protection film and surface protection film
  • Support substrate for surface protection film and surface protection film
  • Support substrate for surface protection film and surface protection film

Examples

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Embodiment Construction

[0035] The present invention will be described in detail below with reference to the accompanying drawings. FIG. 1 is a schematic cross-sectional view showing a support substrate for a surface protection film according to an embodiment of the present invention; FIG. 2 is a schematic cross-sectional view showing a surface protection film according to an embodiment of the present invention.

[0036] As described in the first aspect of the invention, the support substrate for a surface protection film of the present invention is formed of at least two or more film layers having different physical properties. Simultaneously, an outermost film layer corresponding to the outermost surface of the other side is formed with respect to one side surface of the support base material.

[0037] The tensile modulus measured based on JIS-K-7127 (2000) of the outermost film layer shows a value lower than the tensile modulus of the support base material as a whole, preferably a value lower than...

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Abstract

A substrate of the surface protective film giving a film attached to the surface of a building material, a painted steel sheet, etc. for the purpose of prevention of damage easy applicability and easy removability and a surface protective film using the same, that is, a substrate of the surface protective film comprised of at least two film layers with different physical properties, wherein an outermost film layer forming an outermost surface corresponding to another surface facing one surface of the substrate exhibits a tensile modulus of elasticity based on JIS-K-7127 (2000) lower than a tensile modulus of elasticity of the substrate as a whole and a surface protective film comprised of such a substrate of the surface protective film on one surface of which an adhesive layer is formed.

Description

technical field [0001] The present invention relates to a support substrate for a surface protection film and a surface protection film, and particularly to a support substrate for a surface protection film and a surface protection film formed therefrom which are suitable for protecting the surface of building materials or coated steel plates. Background technique [0002] In the past, when transporting or storing painted surfaces such as doors, window frames, and glass windows, as well as building materials such as PCM (Pre-coat metal) or painted steel sheets, there were often problems caused by dust or dust, rain or stone particles. The damage caused by it, etc., will lead to problems such as loss of commodity value. [0003] Therefore, in order to prevent damage to the surface of building materials, painted steel sheets, etc., it is generally a method of bonding a surface protection sheet for protection. The surface protection sheet is formed by providing an adhesive lay...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/32B32B7/12B32B7/02
CPCB32B7/02B32B2307/5825B32B2553/00B32B2270/00B32B2250/24B32B2307/54B32B2274/00B32B27/32B32B27/08Y10T428/24942Y10T428/2495Y10T428/2848Y10T428/31913Y10T428/31938B32B7/022
Inventor 缓诘宏齐藤友纪柴田健一
Owner FUTAMURA CHEM
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