Patent ID: 11879070
Assignee: CELGARD, LLC
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC C  H  Y | IPC C  H

Claim 0:
1. A separator comprising:
a substrate having a polypropylene-polyethylene-polypropylene tri-layer structure;
a coating composition coated on one side of the substrate which comprises:
a polymeric binder comprises water as the solvent, an aqueous solvent, or a non-aqueous solvent;
heat-resistant particles; and
at least one component selected from the group consisting of a cross-linker, a low-temperature shutdown agent, an adhesion agent, a thickener, a friction reducing agent, and a high-temperature shutdown agent;
wherein the polymeric coating comprises a polylactam according to formula (2) and a catalyst:, wherein R1, R2, R3, and R4 can be alkyl or aromatic substituents; R5 can be alkyl, aryl, or fused ring;
m can be an integer between 2 and 4, and wherein the ratio of l to n is such that 0≤l:n≤1, and X is an epoxide or an alkyl amine.