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

Claim 11:
12. A method for making polymeric objects having a surface on which is formed an array of nanofibers, the method comprising:
providing a transparent rotating mold with an array of nanoholes formed in a circumferential surface thereof;
applying a flowable polymer to the rotating mold at a first angular location so that the flowable polymer coats at least a portion of the circumferential surface of the rotating mold and infiltrates at least a portion of the nanoholes;
cooling the flowable polymer on the coated rotating mold while the coated rotating mold rotates to a second angular position; and
removing the cooled polymer from the rotating mold as an elongate film;
wherein the polymer that infiltrated the nanoholes forms the array of nanofibers on a surface of the elongate film.