Hydrogenated copolymer

   
   

Disclosed is a hydrogenated copolymer obtained by hydrogenating an unhydrogenated copolymer comprising conjugated diene monomer units and vinyl aromatic monomer units, the unhydrogenated copolymer having at least one polymer block (H) of vinyl aromatic monomer units, wherein the hydrogenated copolymer has the following characteristics (1) to (5): (1) a content of the vinyl aromatic monomer units of from more than 60% by weight to less than 90% by weight, based on the weight of the hydrogenated copolymer; (2) a content of the polymer block (H) of from 1 to 40% by weight, based on the weight of the unhydrogenated copolymer; (3) a weight average molecular weight of from more than 100,000 to 1,000,000; (4) a hydrogenation ratio of 85% or more, as measured with respect to the double bonds in the conjugated diene monomer units; and (5) substantially no crystallization peak observed at -50 to 100.degree. C. in a differential scanning calorimetry (DSC) chart obtained with respect to the hydrogenated copolymer.

É divulgado um copolymer hydrogenated obtido hydrogenating um copolymer unhydrogenated que compreende unidades conjugated do monomer do diene e unidades aromatic do monomer do vinil, o copolymer unhydrogenated que tem ao menos um bloco do polímero (h) de unidades aromatic do monomer do vinil, wherein o copolymer hydrogenated tem as seguintes características (1) a (5): (1) um índice das unidades aromatic do monomer do vinil mais de de 60% pelo peso menos a de 90% pelo peso, baseadas no peso do copolymer hydrogenated; (2) um índice do bloco do polímero (h) de 1 a 40% pelo peso, baseado no peso do copolymer unhydrogenated; (3) um o peso molecular da média do peso mais de de 100.000 a 1.000.000; (4) uma relação do hydrogenation de 85% ou mais, como medidos com respeito às ligações dobro nas unidades conjugated do monomer do diene; e (5) substancialmente nenhum pico da cristalização observado em -50 a 100.degree. C. em uma carta do calorimetry de exploração diferencial (DSC) obtida com respeito ao copolymer hydrogenated.

 
Web www.patentalert.com

< Nitrosated and nitrosylated taxanes, compositions and methods of use

< Pharmaceutical compositions comprising thiram

> Expandable stent and method for delivery of same

> Surface features of an implantable medical device

~ 00160