| US 7,531,120 B2 | ||
| Method of making a product with a micro or nano sized structure and product | ||
| Cornelis Johannes Maria Van Rijn, Hengelo (Netherlands); Laura Vogelaar, Enschede (Netherlands); Wietze Nijdam, Enschede (Netherlands); Jonathan Nathaniel Barsema, Enschede (Netherlands); and Matthias Wessling, Enschede (Netherlands) | ||
| Assigned to Aquamarijn Holding B.V., Hengelo (Netherlands) | ||
| Appl. No. 10/433,275 PCT Filed Dec. 03, 2001, PCT No. PCT/NL01/00874 § 371(c)(1), (2), (4) Date Sep. 29, 2003, PCT Pub. No. WO02/43937, PCT Pub. Date Jun. 06, 2002. |
||
| Claims priority of application No. 1016779 (NL), filed on Dec. 02, 2000. | ||
| Prior Publication US 2004/0028875 A1, Feb. 12, 2004 | ||
| Int. Cl. B29C 39/00 (2006.01) | ||
| U.S. Cl. 264—299 [264/319] | 10 Claims |
| 1. A method of making a product with a predetermined micro to nano sized structure, comprising:
providing a mould having a corresponding predetermined micro to nano sized structure at a mould surface;
contacting a casting fluid containing a casting material with said mould surface;
subjecting said casting fluid to a non-solvent based phase separation treatment to induce phase separation therein;
inducing solidification and shrinkage of said casting material by contacting said casting fluid with a non-solvent fluid so
as to form a product on the mould surface; and
releasing the resulting product, which is at least partly solidified, from the mould surface with said predetermined micro
to nano sized structure after said casting material has at least partly solidified and shrunken.
|