Patent ID: 11894575
Assignee: LG CHEM, LTD.
Field: Chemical engineering (Chemistry)
Classification: CPC H  B  Y | IPC B  H

Claim 12:
13. The method for manufacturing the crosslinked polyolefin separator according to claim 12, wherein (S1) comprises:
introducing the polyolefin to the extruder;
introducing a pre-introduced composition containing a part of the diluting agent, a part of the initiator, a part of the alkoxysilane containing the carbon-carbon double bonded group and a part of the crosslinking catalyst to the extruder, followed by mixing; and
introducing a post-introduced composition containing a remaining part of the diluting agent, a remaining part of the initiator, a remaining part of the alkoxysilane containing the carbon-carbon double bonded group and a remaining part of the crosslinking catalyst to the extruder at the predetermined time interval, followed by mixing, and then carrying out the reactive extrusion,
wherein a weight ratio (a/b) of (a) the part of the alkoxysilane containing the carbon-carbon double bonded group to (b) the part of the initiator in the pre-introduced composition is 100-700, and
a weight ratio (c/d) of (c) the remaining part of the alkoxysilane containing the carbon-carbon double bonded group to (d) the remaining part of the initiator in the post-introduced composition is smaller than the weight ratio (a/b).