BLOCK COPOLYMER COMPOSITION AND MOLDED PRODUCT,申请号JP19990342366-传众专利搜索

BLOCK COPOLYMER COMPOSITION AND MOLDED PRODUCT

申请公布号：JP2001158847(A)

申请号：JP19990342366

申请日期：1999.12.01

申请公布日期：2001.06.12

申请人：

KURARAY CO LTD

发明人：ITOU CHIKANORI;FURUMIYA YUKIATSU

分类号：C08L53/00;C08K5/057;(IPC1-7):C08L53/00

主分类号：C08L53/00

摘要：PROBLEM TO BE SOLVED: To obtain a block copolymer composition having excellent flexibility under a high temperature condition besides under an ordinary temperature condition. SOLUTION: The block copolymer composition consists of components (a) and (b), and satisfies the fallowing conditions from (1) to (6): (1) component (a) is a linear block copolymer having a polymer of a vinyl aromatic compound and an olefin polymer; (2) component (b) is a polymer having a bridge structure comprising a bond between metal atoms through oxygen atom; (3) rate of content of silicon atom is 20 mol% or more based on the total metal atoms of the component (b); (4) when the weight contents of the components (a) and (b) are expressed Wa and Wb respectively, the value Wa/(Wa+Wb) is within 0.750 and 0.999; (5) the components (a) and (b) are perfectly compatible and form a cocontinuous structure or a sea-island structure. The sea segment comprises the component (a) and a particulate cocontinuous structure having 200 nm or less of an average particle diameter; and (6) an average pore size of a porous substance obtained by baking at 500 deg.C is 50 nm or less.