Thermal extrusion method to fabricate large-dimension superhydrophobic cylinder pillar arrays with droplet pancake bouncing phenomenon
US-2020009763-A1 · Jan 9, 2020 · US
Method of manufacturing a mold body
US12459164B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12459164-B2 |
| Application number | US-202318137119-A |
| Country | US |
| Kind code | B2 |
| Filing date | Apr 20, 2023 |
| Priority date | May 17, 2022 |
| Publication date | Nov 4, 2025 |
| Grant date | Nov 4, 2025 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
A method includes 3D printing a mold body from polycarbonate to form a cavity surface and 3D printing a permanent hydrophobic structure of polycarbonate on the cavity surface. The hydrophobic structure comprises a plurality of regularly shaped protrusions extending from and spaced 0 mm to 1.5 mm apart on the cavity surface. The patterned protrusions impart permanent hydrophobicity to the mold cavity surface.
First claim
Opening claim text (preview).
The invention claimed is: 1 . A method, comprising: manufacturing a mold body having a cavity surface; and creating a permanent hydrophobic structure on the cavity surface, wherein the mold body and the hydrophobic structure are 3D printed, wherein the mold body or the hydrophobic structure are made of polycarbonate, wherein the hydrophobic structure comprises a plurality of regularly shaped protrusions, and wherein each protrusion is spaced from an adjacent protrusion at a distance of 0 mm to 1.5 mm. 2 . The method according to claim 1 , wherein the hydrophobic structure and the mold body are created simultaneously. 3 . The method according to claim 1 , wherein the mold body and the hydrophobic structure are made of polycarbonate. 4 . The method according to claim 1 , wherein the protrusions are formed as a shape selected from a list consisting of a hemisphere, a cone, a frustum, and a pyramid. 5 . The method according to claim 1 , wherein each protrusion has a quadratic base having an area of 0.25 mm 2 to 1 mm 2 . 6 . The method according to claim 1 , wherein each protrusion has a tip. 7 . The method according to claim 1 , wherein the hydrophobic structure is created with a height of 0.1 mm to 1 mm.
Assignees
Inventors
Classifications
Use of PC, i.e. polycarbonates or derivatives thereof as mould material · CPC title
Use of {PU, i.e.} polyureas or polyurethanes {or derivatives thereof}, as moulding material · CPC title
characterised by the shape of the moulding surface, e.g. ribs or grooves · CPC title
Products made by additive manufacturing · CPC title
with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles · CPC title
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- What does patent US12459164B2 cover?
- A method includes 3D printing a mold body from polycarbonate to form a cavity surface and 3D printing a permanent hydrophobic structure of polycarbonate on the cavity surface. The hydrophobic structure comprises a plurality of regularly shaped protrusions extending from and spaced 0 mm to 1.5 mm apart on the cavity surface. The patterned protrusions impart permanent hydrophobicity to the mold c…
- Who is the assignee on this patent?
- Aptiv Technologies AG
- What technology area does this patent fall under?
- Primary CPC classification B29C33/3842. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Nov 04 2025 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).