Protective film
A protective film and copolymer technology, applied in the direction of pressure-sensitive film/sheet, film/sheet adhesive, non-polymer adhesive additive, etc., can solve the problem of crosslinking delay and heavy peeling of adhesive composition problems such as chemicalization, and achieve the effect of improving cross-linking delay and inhibiting function reduction
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preparation example Construction
[0105] [Preparation of Adhesive Composition]
[0106] The preparation method of the adhesive composition used in the present invention is not particularly limited as long as it has the effect of the present invention, for example, by adding the above-mentioned (meth)acrylate copolymer (A), isocyanate Joint agent (B), organotin compound (C) and various additives such as antioxidant, ultraviolet absorber, antistatic agent, light diffusing agent, light stabilizer, silane coupling agent, leveling agent, disinfectant A foaming agent and the like are stirred and mixed to prepare the above-mentioned adhesive composition.
[0107] Examples of the solvent include aliphatic hydrocarbons such as hexane and heptane, aromatic hydrocarbons such as toluene and xylene, halogenated hydrocarbons such as methylene chloride and ethylene dichloride, methanol, ethanol, propanol, butanol Isoalcohol, acetone, methyl ethyl ketone, 2-pentanone, isophorone, cyclohexanone and other ketones, ethyl acetat...
Embodiment
[0129] Next, the present invention will be described in more detail with reference to examples, but the present invention is not limited by these examples.
[0130] It should be noted that, for the acrylate copolymer obtained in each example, the weight average molecular weight (Mw) and the number average molecular weight (Mn) in terms of standard polystyrene were obtained by gel permeation chromatography (GPC) method, and by The content of low molecular weight components having a weight average molecular weight of 100,000 or less was determined by the following method.
[0131]
[0132] Measuring device: On the high-speed GPC device "HLC-8120GPC" manufactured by Tosoh Corporation, the high-speed column "TSK gurd column H XL -H", "TSK Gel GMH XL ", "TSK Gel G2000H XL " (both manufactured by Tosoh Corporation) were connected in this order and measured.
[0133] Column temperature: 40°C, liquid delivery rate: 1.0mL / min, detector: differential refractometer
[0134] In addi...
Synthetic example 1
[0143] Synthesis example 1: Synthesis of organotellurium compound (2-methyl-2-n-butyltelluryl-propionic acid ethyl ester)
[0144] 6.38 g (50 mmol) of tellurium metal [manufactured by Aldrich, product name "Tellurium (-40mesh)"] was suspended in 50 ml of tetrahydrofuran (THF), and n-butyllithium [manufactured by Aldrich, 1.6 mol] was slowly added dropwise thereto at room temperature. / L hexane solution] 34.4ml (55mmol). The reaction solution was stirred until the metal tellurium disappeared completely. To this reaction solution was added 10.7 g (55 mmol) of ethyl 2-bromoisobutyrate at room temperature, followed by stirring for 2 hours. After completion of the reaction, the solvent was concentrated under reduced pressure and then distilled under reduced pressure to obtain 8.98 g of ethyl 2-methyl-2-n-butyltelluryl-propionate as a yellow oil (59.5% yield).
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Abstract
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