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

Claim 0:
1. A method for making polymeric objects having a surface on which is formed an array of nanofibers, the method comprising:
providing a transparent first cylindrical roll with an array of nanoholes formed in a circumferential surface thereof;
providing a source of moldable polymer;
rotating the first cylindrical roll;
applying the moldable polymer to the rotating first cylindrical roll at a first angular location so that the moldable polymer covers at least a portion of the circumferential surface of the rotating first cylindrical roll and infiltrates at least a portion of the nanoholes;
cooling the moldable polymer on the covered first cylindrical roll while rotating the covered first cylindrical roll to a second angular position; and
removing the cooled polymer applied to the first cylindrical roll from the first cylindrical roll as an elongate film;
wherein the polymer that infiltrated the nanoholes forms the array of nanofibers on a surface of the elongate film.