Patent ID: 9725569
Date: 2017-08-08
CPC Classifications: C08F,C08J

Claim:
1. A propylene polymer comprising at least 50 mol % propylene and having: 1) a 1% Secant flexural modulus of at least 1000 MPa, determined according to ASTM D 790 (A, 1.0 mm/min); 2) greater than 5 and less than 200 regio defects, defined to be the sum of 2,1-erythro and 2,1-threo insertions and 3,1-isomerizations, per 10,000 propylene units, determined by 3) when comonomer is present, a composition distribution breadth index (CDBI) of 50% or more; 4) a matrix having a porosity of 15% or more and a median pore diameter of between greater than 6 and less than 160 μm, as determined by mercury intrusion porosimetry.