发明名称 |
Transparent thin wall packaging material with improved stiffness and flowability |
摘要 |
Heterophasic polypropylene resin having an MFR (2.16 kg, 230° C.) of more than 27 g/10 min, determined according ISO 1133 comprising a propylene homo- or copolymer matrix (A) and an ethylene-propylene rubber phase (B) dispersed within the matrix, wherein the heterophasic polypropylene resin has a fraction insoluble in p-xylene at 25° C. (XCU) in an amount of 75 to 85 wt.-% with a weight average molecular weight of 110 to 190 kg/mol measured by GPC analysis according to ISO 16014-1, and 4, the fraction insoluble in p-xylene at 25° C. (XCU) containing monomer units derived from ethylene in an amount of 12.0 to 21.0 wt.-% and a fraction soluble in p-xylene at 25° C. (XCS) in an amount of 15 to 25 wt.-% having an intrinsic viscosity of 1.4 to 2.0 dl/g, determined according to DIN EN ISO 1628-1 and -3 and being composed of propylene monomer units in an amount of 40 wt.-% or more, and having a glass transition temperature Tg as measured by DSC according to ISO 6721-7 at a compression molded sample consisting of the XCS fraction in the range of −60 to −50° C. |
申请公布号 |
US9587095(B2) |
申请公布日期 |
2017.03.07 |
申请号 |
US201314648072 |
申请日期 |
2013.12.05 |
申请人 |
BOREALIS AG |
发明人 |
Tranninger Cornelia |
分类号 |
C08F2/01;C08L23/10;C08L23/12;C08L23/14;C08L19/00 |
主分类号 |
C08F2/01 |
代理机构 |
Fay Sharpe LLP |
代理人 |
Klein Richard M.;Fay Sharpe LLP |
主权项 |
1. Heterophasic polypropylene resin having an MFR (2.16 kg, 230° C.) of more than 27 g/10 min, determined according to ISO 1133 comprising
a propylene homo- or copolymer matrix (A) and an ethylene-propylene rubber phase (B) dispersed within the matrix, wherein the heterophasic polypropylene resin has a fraction insoluble in p-xylene at 25° C. (XCU) in an amount of 75 to 85 wt.-% with a weight average molecular weight of 110 to 190 kg/mol measured by GPC analysis according to ISO 16014-1, and 4, the fraction insoluble in p-xylene at 25° C. (XCU) containing monomer units derived from ethylene in an amount of 12.0 to 21.0 wt.-% and a fraction soluble in p-xylene at 25° C. (XCS) in an amount of 15 to 25 wt.-% having an intrinsic viscosity of 1.4 to 2.0 dl/g, determined according to DIN EN ISO 1628-1 and -3 and being composed of propylene monomer units in an amount of 40 wt.-% or more, and having a glass transition temperature Tg as measured by DSC according to ISO 6721-7 at a compression moulded sample consisting of the XCS fraction in the range of −60 to −50° C. |
地址 |
Vienna AT |