| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a resin-coated seamless can having outstanding working properties and high resistance to impact and corrosion. SOLUTION: This resin-coated seamless can shows that the birefringenceΔn1 andΔn2 of the formulae (1) and (2)Δn1=nx-ny...(1) andΔn2=nx-nz...(2) (wherein, nx is the refractivity of the direction (x) where the refractivity is highest among the area directions of a film at the bottom part 21 of the can; ny is the refractivity of the orthogonal direction (y) with the direction (x) among the area directions of the film at the bottom part 21 of the can; and nz is the refractivity of the thickness direction (z) of the film at the bottom part 21 of the can) of the thermoplastic resin layer at the bottom part 21 of the can, are equally less than 0.04, on the side, coming into contact with the metal substrate, of the film and the birefringenceΔn3 of the formula (3)Δn3=nx-nz (wherein, ny is the refractivity of the direction (x) where the refractivity is highest among the area directions of the film at the barrel part 22 of the can and nz is the refractivity of the thickness direction (2) of the film at the barrel part 22 of the can) of the thermoplastic resin layer at the barrel part 22 of the can is more than 0.04 and is less than 0.14 on the side, coming into contact with the metal substrate, of the film.</p> |
