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AssigneeNitto Denko Corporation
InventorsKunio Nagasaki, Yusuke Sugino, Kohei Doi
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Provided is a viscoelastic article which exerts different properties between one surface and the other surface thereof, which has a transparent appearance, and which less causes staining of objects to which the viscoelastic article is adopted. The viscoelastic article is an article having a multilayer structure including a polymer layer, and a monomer-absorptive layer capable of absorbing at least one of monomer component(s) constituting the polymer, in which the polymer layer is a polymer layer containing an elastomer unevenly distributed and enriched at an interface, or in the vicinity thereof, opposite to the monomer-absorptive layer. The vicinity of the interface opposite to the monomer-absorptive layer is preferably a region ranging from the interface opposite to the other interface with the monomer-absorptive layer and occupying, in a thickness direction, 50% or less of the total thickness.
A viscoelastic article comprising a multilayer structure including a polymer layer;
(canceled)
5-6. (canceled)
9-13. (canceled)
A process for producing a viscoelastic article, the process comprising the steps of providing a polymerizable composition layer containing an elastomer on at least one side of a monomer-absorptive layer, the polymerizable composition layer including a polymerizable composition containing at least the elastomer and a polymerizable monomer, and the monomer-absorptive layer being capable of absorbing the polymerizable monomer;
A process for producing a viscoelastic article, the process comprising the steps of preparing a laminate, the laminate including, in the following order, a monomer-absorptive sheet, a polymerizable composition layer containing an elastomer, and a cover film, the monomer-absorptive sheet having a monomer absorptive layer with a monomer-absorptive face, the polymerizable composition layer being present on the monomer-absorptive face of the monomer-absorptive sheet and including a polymerizable composition containing at least the elastomer and a polymerizable monomer, and the monomer-absorptive sheet being capable of absorbing the polymerizable monomer;
A process for producing a viscoelastic article, the process comprising the steps of providing a polymerizable composition layer on at least one side of a monomer-absorptive layer, the polymerizable composition layer including a polymerizable composition containing at least a polymerizable monomer, an elastomer, and a tackifier resin, and the monomer-absorptive layer being capable of absorbing the polymerizable monomer;
A process for producing a viscoelastic article, the process comprising the steps of preparing a laminate, the laminate including, in the following order, a monomer-absorptive sheet, a polymerizable composition layer, and a cover film, the monomer-absorptive sheet having a monomer-absorptive layer with a monomer-absorptive face, the polymerizable composition layer being present on the monomer-absorptive face of the monomer-absorptive sheet and including a polymerizable composition containing at least a polymerizable monomer, an elastomer, and a tackifier resin, and the monomer-absorptive, sheet being capable of absorbing the polymerizable monomer;
18-27. (canceled)
Dependencies are inferred from the claim text.