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US 2006/0235133 A1Published application
Transparent flexible composition
AssigneeJsr Corporation
InventorsMasanori Suzuki, Akihiko Morikawa, Takashi Kawata
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AssigneeJsr Corporation
InventorsMasanori Suzuki, Akihiko Morikawa, Takashi Kawata
Estimating the term…
An object of the present invention is to provide a transparent flexible composition which is excellent in transparency, and is also excellent in impact resistance and viscoelasticity. The transparent flexible composition of the present invention comprises 100 parts by mass of a thermoplastic elastomer component (A) comprising a hydrogenated block polymer by hydrogenating an olefinic unsaturated bond in a block copolymer having, in its molecule, at least one butadiene polymer block (I) having a vinyl bond content of 5 to 25% in the block and at least one polymer block (II) having a mass ratio of a conjugated diene to other monomer of (100 to 50)/(0 to 50) and having a vinyl bond content of 25 to 95% by mass and a butyl rubber, and 500 to 5,000 parts by mass of a liquid material (B), and has a total transmittance of 90% or higher at 25° C. and at a thickness of 0.5 mm.
A transparent flexible composition, characterized in that it comprises 100 parts by mass of a thermoplastic elastomer component (A) comprising elastomer (A-1) which is at least one type selected from the group consisting of a hydrogenated block polymer of a conjugated diene, a hydrogenated block polymer of an aromatic vinyl compound and a conjugated diene, and an ethylene•α-olefin-based rubber, and other elastomer (A-2), and 500 to 5,000 parts by mass of a liquid material (B), and has a total transmittance of 90% or higher at 25° C. and at a thickness of 0.5 mm.
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Dependencies are inferred from the claim text.