Multilayer body and method for producing same
AssigneeKuraray Co., Ltd.
InventorsDaisuke Konishi, Hiromitsu Sasaki, Yuta Tomishima
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AssigneeKuraray Co., Ltd.
InventorsDaisuke Konishi, Hiromitsu Sasaki, Yuta Tomishima
Estimating the term…
Provided are a multilayer body in which base materials composed of a metal, a resin or the like are firmly bonded to each other even when not subjected to primer treatment or the like, and a method for producing the multilayer body. The multilayer body has a base material (X), an adhesive layer (Y), and a base material (Z) in this order, wherein the adhesive layer (Y) contains a hydrogenated block copolymer (A) obtained by hydrogenating a block copolymer (P) containing a polymer block (a) composed of a structural unit derived from an aromatic vinyl compound and a polymer block (b) composed of a structural unit derived from a conjugated diene, the mass ratio [(a)/(b)] of the polymer block (a) to the polymer block (b) is 1/99 to 50/50, and the adhesive layer (Y) has a storage modulus G′ at 100° C. of 1.2×105 to 4.0×105 Pa.
A multilayer body comprising a base material (X), an adhesive layer (Y), and a base material (Z) in this order, wherein the adhesive layer (Y) contains a hydrogenated block copolymer (A) obtained by hydrogenating a block copolymer (P) containing a polymer block (a) composed of a structural unit derived from an aromatic vinyl compound and a polymer block (b) composed of a structural unit derived from a conjugated diene, the mass ratio [(a)/(b)] of the polymer block (a) to the polymer block (b) is 1/99 to 50/50, and the adhesive layer (Y) has a storage modulus G′ at 100° C. of 1.20×105 to 4.00×105 Pa;
The multilayer body according toslaim 1, wherein the hydrogenated block copolymer (A) is a mixture of two or more kinds of hydrogenated block copolymers, and a content of a diblock copolymer in the hydrogenated block copolymer (A) is 50% by mass or less.
Dependencies are inferred from the claim text.