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Surface protection sheet

A protective sheet and one-sided technology, applied in the direction of film/sheet adhesive, adhesive type, application, etc., can solve the problem of insufficient weather resistance, achieve excellent weather resistance, and suppress the increase in adhesive force , the effect of preventing glue marks

Inactive Publication Date: 2013-08-21
NITTO DENKO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these surface protection sheets also have a problem of insufficient weather resistance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

manufacture example 1

[0067] [Manufacture Example 1]: Manufacture of Polymer 1

[0068] 40 g of styrene and 400 g of cyclohexane were charged into the autoclave, nitrogen substitution was performed, and 0.003 mol of sec-butyl lithium dissolved in cyclohexane was charged. After reacting at 60° C. for 1 hour, 400 g of butadiene and 2,000 g of cyclohexane were added thereto, and then reacted at 60° C. for 2 hours. After the reaction, 40 g of styrene and 400 g of cyclohexane were added again, and reacted at 60° C. for 1 hour. Using this reaction, SBS block polymers were prepared. As a catalyst, 1.5 millimoles of nickel acetylacetonate and 3 millimoles of triethylaluminum were reacted in 500 ml of cyclohexane at 25° C. for 10 minutes, and added to the reaction system of the SBS block copolymer obtained above. Thereafter, use hydrogen in the autoclave at 30kg / cm 3 Pressurization was applied to raise the reaction temperature to 50°C, and hydrogenation was stopped after 20 minutes. Thus, Polymer 1 as s...

manufacture example 2

[0069] [Manufacture Example 2]: Manufacture of Polymer 2

[0070] Polymer 2 shown in Table 2 was obtained in the same manner as in Production Example 1 except that it was changed as shown in Table 2.

manufacture example 3

[0071] [Manufacture Example 3]: Manufacture of Polymer 3

[0072] Polymer 3 shown in Table 2 was obtained in the same manner as in Production Example 1 except that it was changed as shown in Table 2.

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Abstract

The invention provides a surface protection sheet. The surface protection sheet has the advantages of very excellent weatherability, inhibition of the increase of adhesion during ageing, reduction of a plasticizing dosage transferred from an adhered object, inhibition of the reduction of the cohesiveness of an adhesive during ageing, and prevention of the adhesive residual on the adhered object after attachment and peeling. The surface protection sheet is obtained through forming an adhesive layer on one side of a substrate layer, the adhesive layer includes a styrene series resin, and the rise rate of the adhesion of the surface protection sheet disposed at 40DEG C for 3 months relative to the initial adhesion of each of a polyvinyl chloride plate, an extinction acrylic plate and a melamine plate is below 2 times.

Description

technical field [0001] The present invention relates to a surface protection sheet. Specifically, the present invention relates to a surface protection sheet that can be used for, for example, a metal plate, a painted metal plate, an aluminum alloy frame, a resin plate, a decorative steel plate, a vinyl chloride-laminated steel plate, When members such as glass plates are transported, processed, or maintained, they are attached to the surface of these members to protect them. Background technique [0002] As the characteristics necessary for the surface protection sheet, the following characteristics can be mentioned, that is, after being attached to the adherend, there will be no floating or peeling of the surface protection sheet, and the adhesion will not occur when the surface protection sheet is peeled and removed. The composite layer will not remain on the adherend. In particular, when the operation of attaching the surface protection sheet to the adherend is carried...

Claims

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Application Information

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IPC IPC(8): C09J7/02C09J125/04C09J7/29
CPCC09J2201/162C09J7/02C09J2423/006C09J2453/00C09J153/02C09J7/0296B32B27/08B32B27/20B32B27/302B32B2274/00B32B2307/402B32B2307/712B32B2405/00C09J7/29C09J2301/162
Inventor 武田公平生岛伸祐山户二郎
Owner NITTO DENKO CORP
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