公开(公告)号：EP1041092A4

公开(公告)日：2002-07-24

申请号：EP99947944

申请日：1999-10-18

申请人： DENKI KAGAKU KOGYO KK

发明人： ARAI TORU ,  NAKAJIMA MASATAKA ,  OTSU TOSHIAKI ,  ODA TAKESHI ,  NAOE TAKANORI ,  NISHITOBA YUKIKO

IPC分类号： C08F4/659 ,  C08F12/04 ,  C08F210/02 ,  C08J5/18

CPC分类号： C08J5/18 ,  C08F4/65912 ,  C08F12/08 ,  C08F210/02 ,  C08J2323/08 ,  Y10S428/91 ,  C08F212/08 ,  C08F2500/03 ,  C08F2500/26 ,  C08F4/65927

摘要： An ethylene/aromatic vinyl copolymer characterized by satisfying the following: (1) It has an aromatic vinyl content of 0.5 to 10 mol%; (2) It gives a 0.2 mm-thick molding which has a haze of 14% or lower or a total light transmittance of 90 % or higher; (3) It satisfies the following relationship (1) between the aromatic vinyl content and the glass transition point (Tg) which is determined by the inflection point method and is observed with a differential scanning calorimeter (DSC) at temperatures not lower than -50 °C: -20 + 1.00St > Tg > -30 + 1.05St relationship (1) wherein St represents the aromatic vinyl content of the copolymer (mol%); (4) It has a weight-average molecular weight of 140,000 to 500,000 when the aromatic vinyl content is 5 to 10 mol%, and of 60,000 to 500,000 when the aromatic vinyl content is 0.5 to 5 mol%, excluding 5 mol%.

公开(公告)号：EP1062957A4

公开(公告)日：2009-04-29

申请号：EP99907880

申请日：1999-03-08

申请人： DENKI KAGAKU KOGYO KK

发明人： ODA TAKESHI ,  NISHITOBA YUKIKO ,  ARAI TORU ,  OKAMOTO AKIO ,  OTSU TOSHIAKI

IPC分类号： A61J1/10 ,  A61L29/04 ,  A61L31/04 ,  C08F4/642 ,  A61L29/00 ,  A61L31/00 ,  C08F210/00 ,  C08F212/08 ,  C08L23/02 ,  C08L25/08

CPC分类号： A61L29/041 ,  A61L31/048 ,  C08L2314/06 ,  Y10S602/904 ,  Y10T428/1352 ,  Y10T428/1386 ,  Y10T428/139 ,  Y10T428/1397 ,  C08L25/08 ,  C08L23/02

摘要： A medical material and a medical supply which each comprises an aromatic vinyl/α-olefin random copolymer. They contain substantially no chlorine, and have not only excellent flexibility and transparency and moderate resilience but radiation resistance and biocompatibility. They are hence advantageously used especially in the medical field.