公开(公告)号：US10800911B2

公开(公告)日：2020-10-13

申请号：US16320761

申请日：2017-08-01

申请人： Sumitomo Chemical Company, Limited

发明人： Hidekazu Yamada

IPC分类号： C08L23/16 ,  B09B1/00 ,  C08L23/10 ,  C08L23/08 ,  C08J5/18 ,  E02D31/00

摘要： A heterophasic propylene polymerization material containing a propylene homopolymer component or a specific propylene copolymer component, and a specific ethylene-α-olefin copolymer component, in which (i) the amount of the xylene-soluble component is 40% by weight or more, (ii) the limiting viscosity [η]C X I S of the xylene-insoluble component is 1.50 dL/g or more, (iii) the ratio of the limiting viscosity [η]C X S of the xylene-soluble component to the limiting viscosity [η]C X I S of the xylene-insoluble component is 1.5 or less, and (iv) the content of monomer units derived from ethylene and α-olefins having 4 to 12 carbon atoms in the xylene-insoluble component is 6% by weight or more.

公开(公告)号：US11613601B2

公开(公告)日：2023-03-28

申请号：US16493562

申请日：2018-03-12

申请人： SUMITOMO CHEMICAL COMPANY, LIMITED

发明人： Hidekazu Yamada ,  Masahiro Yanagisawa

IPC分类号： C08F297/08 ,  C08K3/34 ,  C08L23/10

摘要： A heterophasic propylene polymerization material, including a propylene polymer component (I) and an ethylene-α-olefin copolymer component (II), the heterophasic propylene polymerization material satisfying features (i) to (v): (i) the heterophasic propylene polymerization material contains a xylene-soluble content by 20 wt % or more; (ii) xylene-soluble content in the heterophasic propylene polymerization material has a limiting viscosity [η]CXS not less than 5 dL/g; (iii) a melt flow rate of the propylene polymer component (I) is 70 g/10 min or more; (iv) MFR of the heterophasic propylene polymerization material is not less than 5 g/10 min; and (v) the number of gels of 100 μm or more in diameter on a sheet for counting gels, including the heterophasic propylene polymerization material, is 1000 or less per 100 cm2 of the sheet.