公开(公告)号：US20240343894A1

公开(公告)日：2024-10-17

申请号：US18634566

申请日：2024-04-12

Applicant: LyondellBasell Advanced Polymers Inc.

Inventor： Melanie Longanecker

IPC: C08L23/06 ,  C08J3/00 ,  C08J5/18 ,  C08K3/32 ,  C08K5/13 ,  C08L23/12 ,  C08L23/14

CPC classification number: C08L23/06 ,  C08J3/005 ,  C08J5/18 ,  C08L23/12 ,  C08L23/14 ,  C08J2323/06 ,  C08J2323/12 ,  C08J2323/14 ,  C08K3/32 ,  C08K5/13 ,  C08K2201/012 ,  C08L2205/08 ,  C08L2207/066 ,  C08L2310/00

Abstract: Provided are linear low density polyethylene (LLDPE) compositions including a LLDPE polymer and from 100 ppm to 10,000 ppm of a high molecular weight ethoxylate polymer processing aid (PPA) that is substantially free of fluorine-containing compounds. Also provided are polyolefin masterbatches including from 1 wt. % to 50 wt. % of such inventive high molecular weight ethoxylate PPAs and methods of decreasing melt fracture % in linear low density polyethylene films by blending such high molecular weight ethoxylate polymer processing aids and polyolefin masterbatches into cast films and blown films during extrusion processing.