Method of making a product with a micro or nano sized structure and product
AssigneeAquamarijn Holding B.V.
InventorsCornelis Johannes Maria Van Rijn, Laura Vogelaar, Wietze Nijdam, Jonathan Nathaniel Barsema, Matthias Wessling
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Abstract
Using phase separation technique perforated as well as non-perforated polymeric structures can be made with high aspect ratios (>5). By varying the phase separation process the properties (e.g. porous, non-porous, dense, open skin) of the moulded product can be tuned. Applications are described in the field of micro fluidics (e.g. micro arrays, electrophoretic boards), optics, polymeric solar cells, ball grid arrays, and tissue engineering.
Claims10
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.
Dependencies are inferred from the claim text.