JP2009530446A5 - - Google Patents

Claims (15)

A propylene / alpha-olefin interpolymer comprising polymerized units of propylene and alpha-olefins, having an average block index of 0.4 to 1.0, have a molecular weight distribution _M w / _{M n} greater than 2.6 And a propylene / α-olefin interpolymer characterized by having only one melting point Tm . Average block index is 0 . 3-0 . The propylene / α-olefin interpolymer of claim 1 in the range of 7. Average block index is 0 . 6-0 . The propylene / α-olefin interpolymer of claim 1 in the range of 9. 0 . 85 g / cc to 0 . Having a density in the range of 905 g / cc, propylene / alpha-olefin interpolymer of claim 1. α- olefin is styrene, ethylene, 1-butene, 1-hexene, 1-octene, 4-methyl-1-pentene, norbornene, 1-decene, 1,5-hexadiene or a combination thereof, to claim 1 The propylene / α-olefin interpolymer described. 2. Propylene / α-olefin according to claim 1, characterized by a single melting point Tm expressed in degrees Celsius and a comonomer content expressed in weight%, wherein the numerical values of Tm and α-olefin correspond to the following relationship: Interpolymer:
_Tm > -2.909 (wt% α-olefin) +141.57. Characterized by an elastic recovery rate Re, expressed in percent measured in one cycle and 300 percent strain in a compression molded film of the propylene / α-olefin interpolymer, and a density d expressed in grams / cubic centimeter, Re and The propylene / α-olefin interpolymer according to claim 1, wherein the numerical value of d satisfies the following relationship when the propylene / α-olefin interpolymer is substantially free of cross-linked phase:
Re> 1481-1629 (d). A propylene / alpha-olefin interpolymer comprising polymerized units of propylene and alpha-olefins, have at least one fraction obtained by (i) Atsushi Nobori Elution Fractionation ( "TREF"), the fraction 0 . More than 3 and 1 . To have a block index of 0, and having only one possible, and a (iii) a melting point Tm which have a molecular weight distribution, M _{w /} M _n greater than (ii) 2.6, propylene / alpha An olefin interpolymer. The propylene / α-olefin interpolymer of claim 1 or 8 , wherein the propylene content is greater than 50 mole percent. 9. The propylene / [alpha] -olefin interpolymer of claim 1 or 8 , comprising one or more hard segments and one or more soft segments. 9. Propylene / [alpha] -olefin interpolymer according to claim 1 or 8 , wherein the hard segment is present in an amount of 5 % to 85% of the interpolymer by weight . 9. Propylene / [alpha] -olefin interpolymer according to claim 1 or 8 , wherein the hard segment comprises at least 98% propylene by weight. 9. Propylene / [alpha] -olefin interpolymer according to claim 1 or 8 , wherein the soft segment comprises less than 95% propylene by weight. The propylene / α-olefin interpolymer according to claim 1 or 8 , wherein the soft segment does not include a chip segment. The propylene / α-olefin interpolymer according to claim 1 or 8 , wherein the hard segment does not include a chip segment.