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Laminate, protective film and mehod for manufacturing laminate

A manufacturing method and laminated body technology, applied to chemical instruments and methods, film/sheet adhesives, protective clothing, etc., can solve the problems of insufficient research on practical applications

Active Publication Date: 2016-02-03
KURARAY CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] It should be noted that, although polymers of β-farnesene are described in Patent Documents 3 and 4, they have not been sufficiently studied for practical use.

Method used

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  • Laminate, protective film and mehod for manufacturing laminate
  • Laminate, protective film and mehod for manufacturing laminate
  • Laminate, protective film and mehod for manufacturing laminate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0134] The present invention will be described below by way of examples, but the present invention is not limited to these examples. In addition, β-farnesene (purity 97.6 mass %, manufactured by Amyris Biotechnology Co., Ltd.) was purified by 3 A molecular sieve, and distilled in a nitrogen atmosphere to remove zingiberene, bisabolene, epoxyfarnesene, Hydrocarbon impurities such as farnesol isomers, E,E-farnesol, squalene, ergosterol, and dimers of several types of farnesene are used for the following polymerization.

[0135] (1) Determination of molecular weight distribution (Mw / Mn) and peak molecular weight (Mp)

[0136] The weight-average molecular weight (Mw) and molecular weight distribution (Mw / Mn) of the hydrogenated block copolymers obtained in the respective Examples and Comparative Examples were determined by GPC (gel permeation chromatography) in terms of molecular weight in terms of standard polystyrene. In addition, the position of the apex of the peak of the mol...

manufacture example 1

[0166]

[0167] 62.4 kg of cyclohexane as a solvent and 61.2 g of sec-butyllithium (10.5% by mass cyclohexane solution) as an anionic polymerization initiator were added to a pressure vessel that had been replaced with nitrogen and dried, and after heating up to 50°C, added Styrene (1) 1.40 kg was polymerized for 1 hour, then 12.8 kg of β-farnesene was added, and 1 hour of polymerization was carried out, and then 1.40 kg of styrene (2) was added, and 1 hour of polymerization was carried out, thus obtaining a compound containing polystyrene- Reaction solution of poly(β-farnesene)-polystyrene triblock copolymer. 5% by mass of palladium on carbon (supported palladium: 5% by mass) as a hydrogenation catalyst was added to the reaction liquid, and the reaction was carried out under a hydrogen pressure of 2 MPa and 150° C. for 10 hours. After natural cooling and decompression, the palladium carbon was removed by filtration, the filtrate was concentrated, and further vacuum-dried to...

manufacture example 2

[0168] [Manufacturing example 2]~[Manufacturing example 4]

[0169]

[0170] The hydrogenated block copolymers (A2) to (A4) were obtained in the same manner as in Production Example 1 except that the compounding of various raw materials was changed to that described in Table 1. Table 1 shows the measurement results of various physical properties of the obtained hydrogenated block copolymers (A2) to (A4).

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Abstract

The present invention relates to: a laminate that comprises an adhesive layer in which glue residue does not tend to occur and which has adhesion and a substrate layer; a protective film comprising the laminate; and a method for manufacturing the laminate. This laminate comprises an adhesive layer and a substrate layer, wherein the adhesive layer includes a hydrogenated copolymer containing an aromatic vinyl compound-derived structural unit (a) and a conjugated diene-derived structural unit (b), the content of a farnesene-derived structural unit(b1) being 1-100 mass% and the content of a conjugated diene-derived structural unit (b2) other than farnesene being 0-99 mass% in the total amount of the conjugated diene-derived structural unit (b), and hydrogenation rate of carbon-carbon double bonds in the conjugated diene-derived structural unit (b) being 50 mol% or more.

Description

technical field [0001] The present invention relates to a laminate containing a base material layer and an adhesive layer, a protective film containing the laminate, and a method for producing the laminate. Background technique [0002] Heretofore, as a method of protecting the surfaces of various materials such as metal plates, synthetic resin plates, and glass plates from contamination and damage, a technique of coating with a so-called surface protection film has been used. These surface protection films generally have a laminated structure containing a base material layer and a layer having adhesive force (adhesive layer). The adhesive layer is produced by applying an adhesive to the base material layer or by co-extrusion with the base material layer. [0003] For example, a prism sheet used in a liquid crystal display or the like is covered with the above-mentioned surface protection film, thereby being protected from adhesion or damage from dust and contamination. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J7/02B32B27/00C09J109/06C09J125/10C09J153/02
CPCC09J109/06B32B7/12B32B27/08B32B27/302B32B27/32B32B27/36B32B2457/202B32B2571/00C09J2203/318C09J2425/00C09J7/387C09J153/025B32B2250/24B32B2405/00B32B2250/02
Inventor 佐佐木启光上原阳介田中祐介
Owner KURARAY CO LTD
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