US 12,240,968 B2
Proplylene-based copolymer product
Tadeu Mezacasa Forest, São Paulo (BR); and Gustavo Gori Lusa, São Paulo (BR)
Assigned to Braskem S.A., Camaçari (BR)
Filed by Braskem S.A., Camaçari (BR)
Filed on Jun. 28, 2023, as Appl. No. 18/343,193.
Application 18/343,193 is a continuation of application No. 15/931,296, filed on May 13, 2020, granted, now 11,725,100.
Claims priority of provisional application 62/847,097, filed on May 13, 2019.
Prior Publication US 2023/0340246 A1, Oct. 26, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. C08L 23/12 (2006.01); C08F 2/34 (2006.01); C08F 210/02 (2006.01); C08F 210/08 (2006.01)
CPC C08L 23/12 (2013.01) [C08F 2/34 (2013.01); C08F 210/02 (2013.01); C08F 210/08 (2013.01); C08F 2800/10 (2013.01); C08L 2205/02 (2013.01); C08L 2205/22 (2013.01); C08L 2207/02 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A polypropylene polymer composition having:
a matrix phase of a random polypropylene-based copolymer,
an elastomeric rubber phase dispersed in the matrix phase,
a haze according to ASTM D1003 measured in 1 mm injected mold plaques, that is less than 30%;
an IZOD impact energy according to ASTM D256A at 23° C. greater than 150 J/m; and
a flexural modulus secant at −1% according to ASTM D790 of greater than 800 MPa,
wherein the polymer composition has a melt flow rate (MFR) according to ASTM D1238 at 230° C./2.16 kg, ranging from 10 g/10 min to 25 g/10 min.