Hydrogenated block copolymer, hydrogenated block copolymer composition, and molded article
The present invention relates to a hydrogenated block copolymer, a hydrogenated block copolymer composition, and a molded article. The purpose of the present invention is to obtain a hydrogenated block copolymer exhibiting excellent low resilience and wear resistance. A hydrogenated block copolymer...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The present invention relates to a hydrogenated block copolymer, a hydrogenated block copolymer composition, and a molded article. The purpose of the present invention is to obtain a hydrogenated block copolymer exhibiting excellent low resilience and wear resistance. A hydrogenated block copolymer (A) satisfying conditions (1)-(3). Lt; condition (1) gt; and at least one hydrogenated copolymer block (b) containing a vinyl aromatic monomer unit and a conjugated diene monomer unit, the content of the hydrogenated copolymer block (b) being 65-95 mass%. Lt; condition (2) gt; and the content of the vinyl aromatic monomer unit in the hydrogenated copolymer block (b) is 40-75 mass%. Lt; condition (3) gt; the ratio g = P/P0 of the peak intensity P detected by a thermal decomposition gas chromatography mass spectrometer to P0 determined by formula I P0 = k * RS is 0.75 or more. (In formula I, RS is the content (mass%) of the vinyl aromatic monomer unit in block (b) relative to the entire hydrogenated block copolymer ( |
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