US 12,258,464 B2
Polymer composition for blow molding including waste separator with inorganic coating and molded article manufactured therefrom
Jong Sang Park, Daejeon (KR); Yun Bong Kim, Daejeon (KR); Kyu Young Cho, Daejeon (KR); and Si Uk Cheon, Daejeon (KR)
Assigned to SK Innovation Co., Ltd., Seoul (KR); and SK Geo Centric Co., Ltd., Seoul (KR)
Filed by SK Innovation Co., Ltd., Seoul (KR); and SK Geo Centric Co., Ltd., Seoul (KR)
Filed on Jun. 1, 2023, as Appl. No. 18/327,170.
Claims priority of application No. 10-2022-0104050 (KR), filed on Aug. 19, 2022.
Prior Publication US 2024/0059879 A1, Feb. 22, 2024
Int. Cl. C08L 23/06 (2006.01); C08K 3/00 (2018.01)
CPC C08L 23/06 (2013.01) [C08K 3/00 (2013.01); C08L 2205/025 (2013.01); C08L 2207/062 (2013.01); C08L 2207/20 (2013.01)] 15 Claims
 
1. A polymer composition for blow molding, comprising:
a waste high-density polyethylene comprising a waste separator with an inorganic coating; and a new high-density polyethylene having a melt flow index of 0.01 to 5 g/10 min as measured in accordance with ASTM D1238 (190° C., 2.16 kg),
wherein an inorganic content derived from the waste separator with the inorganic coating is 20 wt % or less with respect to the total weight of the polymer composition for blow molding, and
wherein the waste high-density polyethylene has a high load melt flow index (HLMI1) of 0.1 to 7.0 g/10 min as measured in accordance with ASTM D1238 (190° C., 21.6 kg).