To improve the anti-fogging properties of a laminate without lowering its transparency and gas permeability by a method wherein a 4-methyl-1-pentene- based polymer and a specified propylene-based polymer of ethylene-based polymer including an anti-fogging agent are laminated to each other through an adhesive layer as an intermediate layer.
A poly(4-methyl-1-pentene)-based resin laminate consists of a layer made of a 4-methyl-1-pentene-based polymer, a intermediate layer made of a bonding resin and a layer made of a propylene-based polymer containing an anti-fogging agent or an ethylene-based polymer containing the anti-fogging agent. In this case, the 4-methyl-1-pentene-based polymer represents a copolymer including about 85 wt.% or more of a single 4-methyl-1-pentene polymer or of the constitutional unit derived from 4-methyl-1-pentene. Further, the propylene- based polymer or ethylene-based polymer includes 0.05-5 wt.% of the anti-fogging agent. Thus, the anti-fogging properties of a laminate can be improved without lowering its transparency and gas permeability.
YAMAMOTO AKIO
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