US 12,065,558 B2
Mixed recycled polyolefin resin composition comprising recycled polyolefin resin recovered from waste separator and recycled product using the same
Yun Bong Kim, Daejeon (KR); Jong Sang Park, Daejeon (KR); Kyu Young Cho, Daejeon (KR); and Si Uk Cheon, Daejeon (KR)
Assigned to SK INNOVATION CO., LTD., Seoul (KR); and SK IE TECHNOLOGY CO., LTD., Seoul (KR)
Filed by SK INNOVATION CO., LTD., Seoul (KR); and SK IE TECHNOLOGY CO., LTD., Seoul (KR)
Filed on Mar. 31, 2023, as Appl. No. 18/194,515.
Claims priority of application No. 10-2022-0040303 (KR), filed on Mar. 31, 2022; application No. 10-2022-0059228 (KR), filed on May 13, 2022; and application No. 10-2023-0040492 (KR), filed on Mar. 28, 2023.
Prior Publication US 2023/0312891 A1, Oct. 5, 2023
Int. Cl. C08L 23/06 (2006.01); C08J 11/04 (2006.01); H01M 10/54 (2006.01); H01M 50/446 (2021.01)
CPC C08L 23/06 (2013.01) [C08J 11/04 (2013.01); H01M 10/54 (2013.01); H01M 50/446 (2021.01); C08J 2323/06 (2013.01); C08L 2205/025 (2013.01); C08L 2207/20 (2013.01)] 8 Claims
 
1. A mixed recycled polyolefin resin composition comprising:
a new polyolefin resin and a recycled polyolefin resin from a waste separator that mix with each other,
wherein the mixed polyolefin resin composition including the new polyolefin resin and the recycled polyolefin resin has an Izod impact strength equal to or higher than 15 kJ/m2 and equal to or lower than 35 kJ/m2 according to ASTM D256 standard,
wherein at most 1.00% of the mixed recycled polyolefin resin composition includes inorganic particles,
wherein the recycled polyolefin resin from the waste separator comprises a recycled polyolefin resin obtained by detaching a coating layer from a waste separator that includes an inorganic particle coating layer,
wherein the recycled polyolefin resin obtained by detaching the inorganic particle coating layer from the waste separator including the inorganic particle coating layer is obtained by detaching the inorganic particle coating layer at a coating detachment rate ranging from 90% to 99.9%,
wherein the new polyolefin resin has a weight average molecular weight that ranges from 130,000 to 170,000 g/mol and a molecular weight distribution of 13 to 17,
wherein a weight of the recycled polyolefin resin from the waste separator ranges from 10% to 60% of the weight of the mixed polyolefin recycled resin composition and a weight of the new polyolefin resin may range from 40% to 90% of a weight of the mixed recycled polyolefin resin composition,
wherein the mixed recycled polyolefin resin composition has a tensile elongation of 300% to 500%.