Metallic decorative laminate and urethane-based adhesive agent
AssigneeWavelock Advanced Technology Co., Ltd.
InventorKenta Hoshi
Life of this patent
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Abstract
There are provided a metallic decorative laminate including a first polycarbonate layer, a first adhesive layer, a metal-layer laminate including a metal layer, a second adhesive layer, and a second polycarbonate layer, in that order, the first adhesive layer and the second adhesive layer having a specific composition, a metallic formed body, an injection molded body, a method for manufacturing a metallic decorative laminate, a method for manufacturing a metallic formed body, a method for manufacturing an injection molded body, and a urethane-based adhesive, which can improve the poor appearance of a metallic molded article due to a washout without impairing the design property and moldability and which can satisfy hydrolysis resistance.
Claims8
A metallic decorative laminate, comprising:
- a first polycarbonate layer;
- a first adhesive layer;
- a metal-layer laminate including a metal layer;
- a second adhesive layer;
- and
- a second polycarbonate layer, in that order,
- wherein each of the first adhesive layer and the second adhesive layer contains a reaction product of a polyester-based diol, a polycarbonate-based diol, and an aliphatic isocyanate, a carbodiimide, and a silane coupling agent containing an epoxy group, and
- wherein each of the first adhesive layer and the second adhesive layer contains a structure derived from the polyester-based diol in an amount of 13.8 parts or more by mass and 14.25 parts or less by mass, a structure derived from the polycarbonate-based diol in an amount of 0.75 parts or more by mass and 1.2 parts or less by mass, a structure derived from the aliphatic isocyanate in an amount of 3.20 parts or more by mass and 4.00 parts or less by mass, a structure derived from the carbodiimide in an amount of 0.08 parts or more by mass and 0.20 parts or less by mass, and a structure derived from the silane coupling agent in an amount of 0.50 parts or more by mass and 0.80 parts or less by mass.
A urethane-based adhesive, comprising a polyester-based diol, a polycarbonate-based diol, an aliphatic isocyanate, a carbodiimide, and a silane coupling agent containing an epoxy group, wherein the urethane-based adhesive contains a structure derived from the polyester-based diol in an amount of 13.80 parts or more by mass and 14.25 parts or less by mass, a structure derived from the polycarbonate-based diol in an amount of 0.75 parts or more by mass and 1.20 parts or less by mass, a structure derived from the aliphatic isocyanate in an amount of 3.20 parts or more by mass and 4.00 parts or less by mass, a structure derived from the carbodiimide in an amount of 0.08 parts or more by mass and 0.20 parts or less by mass, and a structure derived from the silane coupling agent in an amount of 0.50 parts or more by mass and 0.80 parts or less by mass.
Dependencies are inferred from the claim text.