	US 12,435,168 B2
	High ductility, high modulus and phthalate free impact resistant propylene copolymer
Gapgoung Kong, Sugarland, TX (US); Chih-Jian Chen, Port Lavaca, TX (US); Min-Chi Hsieh, Port Lavaca, TX (US); Lei Zhang, Port Lavaca, TX (US); and Cyrus C. Y. Lee, Victoria, TX (US)
Assigned to Formosa Plastics Corporation, U.S.A., Livingston, NJ (US)
Filed by Formosa Plastics Corporation, U.S.A., Livingston, NJ (US)
Filed on Sep. 12, 2022, as Appl. No. 17/931,212.
Prior Publication US 2024/0109988 A1, Apr. 4, 2024
Int. Cl. C08F 210/16 (2006.01); C08F 210/06 (2006.01); C08L 23/16 (2006.01); B01J 31/02 (2006.01); C08F 2/24 (2006.01)

CPC C08F 210/06 (2013.01) [C08F 210/16 (2013.01); C08L 23/16 (2013.01); B01J 31/0204 (2013.01); B01J 31/0249 (2013.01); C08F 2/24 (2013.01); C08F 2500/30 (2021.01); C08F 2800/20 (2013.01); C08K 2201/019 (2013.01); C08L 2207/02 (2013.01); C08L 2314/02 (2013.01)]

6 Claims

1. A phthalate free impact resistant polypropylene copolymer comprising a homopolymer portion and C2/C3 rubber portion interspersed therein;

wherein the polypropylene copolymer has a flexural modulus value in a range of about 120 to 200 kpsi;

wherein the polypropylene copolymer has 100% instrumented impact ductility at −30° C. and 6.7 m/s;

wherein the polypropylene copolymer has a C2/C3 rubber content greater than 20% by weight; and

wherein the polypropylene copolymer has a total ethylene content in a range of about 10 to 20 molar percent.