US 12,234,350 B2
Olefin-based elastomer composite resin composition for airbag chute, comprising dendrimer
Chang Won Chae, Seoul (KR); Sung Yeon Lee, Seoul (KR); Chang Min Hong, Anyang-si (KR); Jong Soo Park, Incheon (KR); Jae Myung Rhee, Seoul (KR); Jin Young Huh, Goyang-si (KR); Kyu Haeng Cho, Yesan-gun (KR); Dae Keun Kim, Daejeon (KR); Gwang Ho Go, Seoul (KR); and Poong Hyun Choi, Incheon (KR)
Assigned to CEPLA CO., LTD., Asan-si (KR)
Appl. No. 17/312,526
Filed by CEPLA CO., LTD., Asan-si (KR)
PCT Filed Jul. 2, 2019, PCT No. PCT/KR2019/008078
§ 371(c)(1), (2) Date Jun. 10, 2021,
PCT Pub. No. WO2020/122340, PCT Pub. Date Jun. 18, 2020.
Claims priority of application No. 10-2018-0159834 (KR), filed on Dec. 12, 2018.
Prior Publication US 2022/0056254 A1, Feb. 24, 2022
Int. Cl. C08L 23/12 (2006.01); B60R 21/20 (2011.01); C08L 23/0807 (2025.01); C08L 53/00 (2006.01)
CPC C08L 23/12 (2013.01) [B60R 21/20 (2013.01); C08L 23/0815 (2013.01); C08L 53/00 (2013.01)] 8 Claims
 
1. An olefin elastomer composite resin composition for an airbag chute, comprising 30-80 parts by weight of a polypropylene resin, 30-70 parts by weight of an olefin block copolymer, and 0.1-5 parts by weight of a dendrimer based on 100 parts by weight of the total composition,
wherein a melt flow index of the dendrimer is 0.1-50 g/10 min at 190° C. and a load of 2.16 kg, and a density of the dendrimer is 0.93-0.95.