Patent ID: 11944926
Assignee: ULTRA SMALL FIBERS, LLC
Field: Chemical engineering (Chemistry)
Classification: CPC B  D | IPC B  D

Claim 4:
5. The method of claim 3, further comprising:
providing a source of polymer film; and
feeding the polymer film into the space between the circumferential surface of the first cylindrical roll and the circumferential surface of the second cylindrical roll while rotating the covered first cylindrical roll to the second angular position so that the polymer film is compressed in the space with the moldable polymer covering the first cylindrical roll to join the polymer film to at least a portion of the moldable polymer covering the circumferential surface of the first cylindrical roll;
wherein removing the cooled polymer from the first cylindrical roll as an elongate film is removing the joined polymer film and cooled polymer from the first cylindrical roll as an elongate layered construct after the joined polymer film and cooled polymer pass through the space; and
wherein the polymer that infiltrated the nanoholes forms the array of nanofibers on a surface of the elongate layered construct.