The present invention is directed to a hydrogenated copolymer of a vinyl aromatic and isoprene monomer which produces optical media discs having extremely low birefringence.

A invenção atual é dirigida a um copolymer hydrogenated de um vinil aromatic e do monomer do isoprene que produz os discos óticos dos meios que têm o birefringence extremamente baixo.

 
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