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

Claim 20:
21. The multilayer microporous membrane or film of claim 20, wherein:
the polysiloxane is present in an amount from 1 to 10 wt. % or 1 to 30% based on the total weight of the nano-layer or micro-layer of the outermost sub-membranes that comprises the siloxane or polysiloxane;
there are two inner sub-membranes, and the inner sub-membranes and outermost sub-membranes each have three or more micro-layers or nano-layers;
there are two inner sub-membranes, and the inner sub-membranes and outermost sub-membranes each have three or more micro-layers or nano-layers, wherein an outermost nano-layer or micro-layer of each of the inner sub-membranes are in contact with one another in the multilayer microporous membrane or film and comprise, consist of, or consist essentially of the same resin;
there are two inner sub-membranes, and the inner sub-membranes and outermost sub-membranes each have three or more micro-layers or nano-layers, wherein an outermost nano-layer or micro-layer of each of the inner sub-membranes are in contact with one another in the multilayer microporous membrane or film and have identical compositions;
there are two inner sub-membranes, and the inner sub-membranes and outermost sub-membranes each have three or more micro-layers or nano-layers, wherein an outermost nano-layer or micro-layer of each inner sub-membrane is in contact with an outermost nano-layer or micro-layer of an outermost sub-membrane, and the outer most nano-layer or micro-layer of each inner sub-membrane comprises, consists of, or consists essentially of the same resin as the outermost nano-layer or micro-layer of an outermost sub-membrane that it is in contact with; or
there are two inner sub-membranes, and the inner sub-membranes and outermost sub-membranes each have three or more micro-layers or nano-layers, wherein an outermost nano-layer or micro-layer of each inner sub-membrane is in contact with an outermost nano-layer or micro-layer of an outermost sub-membrane, and the outer most nano-layer or micro-layer of each inner sub-membrane comprises, consists of, or consists essentially of the same resin as the outermost nano-layer or micro-layer of an outermost sub-membrane that it is in contact with, the outer most nano-layer or micro-layer of each inner sub-membrane has an identical composition to the outermost nano-layer or micro-layer of an outermost sub-membrane that it is in contact with.