Thermoplastic resin film, metal plate coated with thermoplastic resin, and metal container coated with thermoplastic resin
A thermoplastic resin film and thermoplastic resin technology, applied in the field of thermoplastic resin film, can solve problems such as increasing the surface area, and achieve the effects of improving formability, stabilizing long-term production, and improving adhesion
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Embodiment 1
[0128] [Production of thermoplastic resin film]
[0129] As a thermoplastic polyester resin component, polyethylene terephthalate (homopolymer) was prepared, and as a polyolefin resin component, a nonpolar ethylene-propylene (PE-PP) copolymer was prepared. The two-component resin pellets were mixed at the ratio shown in Table 1, and the mixed chips were put into an extruder and melt-kneaded.
[0130] The kneading conditions were a kneading temperature of 260° C., a ratio Q / N=0.4 of a discharge amount Q (kg / h) to an extruder screw rotation number N (rpm), and a residence time in the extruder of 20 minutes.
[0131] The blended resin thus heated and melted was extruded from a T-die of an extruder onto a casting roll so as to have a film thickness of 20 μm, cooled and solidified to obtain a single-layer thermoplastic resin film.
[0132] For the obtained film, the measurement of the dispersion diameter (the average length "a" in the extrusion direction of the film and the averag...
Embodiment 2
[0170] Except for having used polyethylene terephthalate / isophthalate copolymer (copolymerize 2 mol % of isophthalic acid) as the thermoplastic polyester resin component, obtain single-layer thermoplastic resin film.
[0171] Each evaluation of impact resistance, formability and trimming property, adhesiveness after can making, and productivity was carried out in the same manner as in Example 1. Table 1 shows the obtained results.
Embodiment 3
[0173] In addition to being a thermoplastic polyester resin component, a polyethylene terephthalate / isophthalate copolymer (copolymerized with 2 mol% of isophthalic acid) and polybutylene terephthalate A single-layer thermoplastic resin film was obtained in the same manner as in Example 1 except that alcohol ester (homopolymer) was blended at a ratio of 6:4.
[0174] Each evaluation of impact resistance, formability and trimming property, adhesiveness after can making, and productivity was carried out in the same manner as in Example 1. Table 1 shows the obtained results.
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