Laminated-glass intermediate film, rolled body, laminated glass, and method for producing laminated glass
A technology of laminated glass and manufacturing method, which is applied in the direction of glass/slag layered products, windshield, chemical instruments and methods, etc., and can solve the problems of reduced production efficiency, etc.
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Embodiment 1～4
[0109] (Examples 1 to 4, Comparative Examples 1 and 2)
[0110] (1) Preparation of interlayer film for laminated glass
[0111] Relative to polyvinyl butyral obtained by acetalizing polyvinyl alcohol with an average degree of polymerization of 1700 with n-butyraldehyde (1 mol% of acetyl groups, 69 mol% of butyral groups, 30 mol% of hydroxyl groups) 100 Parts by mass, add 40 parts by mass of triethylene glycol-di-2-ethylhexanoate (3GO) as a plasticizer, and add as an adhesive strength modifier so that the magnesium concentration in the film reaches 50 ppm A 50% by mass: 50% by mass mixture of magnesium bis(2-ethylbutyrate) and magnesium acetate was sufficiently kneaded with a kneading roll to obtain a resin composition.
[0112] The obtained resin composition was extruded using an extruder, thereby obtaining an interlayer film for laminated glass having a single-layer structure having a thickness of 760 μm.
[0113] First, as the first step, after using a sandblasting agent to apply i...
Embodiment 5～7、 comparative example 3、4
[0135] By changing the shape of the embossing roll in the first step, the inclination of the triangular slanted roll and the concave portion of the continuous groove shape at the bottom with respect to the flow direction of the film, the shape of the unevenness provided is changed. Example 1 The interlayer film for laminated glass was prepared in the same manner, and the friction force between the glass and the interlayer film for laminated glass was measured.
[0136] The results are shown in Table 2.
[0137] 【Table 2】
[0138]
Embodiment 8～11、 comparative example 5
[0140] By changing the shape of the embossing roll in the first step, the inclination of the triangular slanted roll and the concave portion of the continuous groove shape at the bottom with respect to the flow direction of the film, the shape of the unevenness provided is changed. Example 1 The interlayer film for laminated glass was prepared in the same manner, and the friction force between the glass and the interlayer film for laminated glass was measured.
[0141] The results are shown in Table 3.
[0142] 【table 3】
[0143]
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