Patent ID: 11969929
Assignee: CELGARD, LLC
Field: Chemical engineering (Chemistry)
Classification: CPC B  H  D  Y | IPC B  D  H

Claim 16:
17. The multilayer microporous membrane or film of claim 16, wherein:
the outermost sub-membranes comprise two or more inner nano-layers or micro-layers and the at least one inner sub-membrane comprises two or more inner nano-layers or micro-layers;
the outermost sub-membranes comprise three or more inner nano-layers or micro-layers and the at least one inner sub-membrane comprises three or more inner nano-layers or micro-layers;
the outermost sub-membranes comprise four or more inner nano-layers or micro-layers and the at least one inner sub-membrane comprises four or more inner nano-layers or micro-layers; or
the outermost sub-membranes comprise five or more inner nano-layers or micro-layers and the at least one inner sub-membrane comprises five or more inner nano-layers or micro-layers.