MULTI-COMPONENT ARTICLES PREPARED FROM HYDROGENATED BLOCK COPOLYMERS

摘要

The present invention is directed to a multi-component article which comprises at least two components, each component being produced from a different polymer composition, and at least one polymer composition comprises a hydrogenated block copolymer comprising at least two distinct blocks of hydrogenated vinyl aromatic polymer, and at least one block of hydrogenated conjugated diene polymer, characterized by:a hydrogenation level such that each hydrogenated vinyl aromatic polymer block has a hydrogenation level of greater than 90 percent and the hydrogenated conjugated diene polymer block has a hydrogenation level of greater than 95 percent,with the proviso that when more than one component is prepared from compositions comprising hydrogenated block copolymers, each composition differs compositionally such that the vinyl aromatic polymer block content of the compositions differs by at least 20 percent.