公开(公告)号：US20230035963A1

公开(公告)日：2023-02-02

申请号：US17785328

申请日：2020-12-11

申请人： NOVA CHEMICALS (INTERNATIONAL) S.A.

发明人： Marcia PIRES FORTES FERREIRA ,  Marzieh EBRAHIMI ,  Renee ANSEEUW ,  Graham LEE ,  Gurpreet KOONER ,  Fazle SIBTAIN

IPC分类号： C08L23/08 ,  C08F2/14 ,  C08F210/16 ,  C08F2/01

摘要： Disclosed herein are processes for producing blends of recycled polymeric material and virgin polyethylene. Post-consumer recycled plastic (PCR) can vary widely with respect to composition which includes mixtures of variable amounts of different polar and non-polar polymers such as polyethylene, polypropylene, ethylene vinyl alcohol, and polyamide. Mixing PCR and virgin polyethylene is inconsistent, partially due to variability, and frequently results in a final product with poor mechanical and optical properties. The process described herein of adding PCR to a solution polymerization process provides another option for blending PCR and virgin polyethylene that offers an ability to exert greater control on the properties of the final product, independent of the composition of the PCR.