Metal mold, process for manufacturing the same, and molded article produced using the mold
AssigneeEmpire Technology Development LLC
InventorKazufumi Ogawa
Life of this patent
Estimating the term…
Abstract
The mold has a mold surface on which is formed as a release film a water-repellent and oil-repellent fluorocarbon-based chemisorbed film having a thickness that is uniform in nanoscale and having a controlled surface energy. As a result, even when a mold has an ultrafine shape on the nanometer scale, the mold allows high precision molding excellent in fluidity and penetrativity of a molding material. In addition, this mold eliminates the application of a release agent and can prevent a release agent from adhering to a molded article.
Claims21
A releasable mold comprising:
- a highly durable releasable composite film formed on a surface of the mold, wherein the film is a composite film having:
- a long-chain substance including a fluorocarbon group and a hydrocarbon group,
- a short-chain substance including a fluorocarbon group, a hydrocarbon group, and a silyl group, and
- a substance including a siloxane group.
A method for manufacturing a releasable mold, comprising:
- bringing a mold surface into contact with a composite film-forming solution to allow them to react with each other to form a releasable composite film, the solution being obtained by diluting, with an organic solvent, a long-chain substance (1) including at least a fluorocarbon group and a hydrocarbon group and an alkoxysilyl group, a short-chain substance (2) including a fluorocarbon group, a hydrocarbon group, and an alkoxysilyl group, a substance (3) including an alkoxysilyl group, and a silanol condensation catalyst or other catalyst.
A method for manufacturing a releasable mold, comprising:
- bringing a mold surface into contact with a composite film-forming solution to allow them to react with each other to form a film, the solution being obtained by diluting, with an organic solvent, a long-chain substance (1) including at least a fluorocarbon group and a hydrocarbon group and an alkoxysilyl group, a short-chain substance (2) including a fluorocarbon group, a hydrocarbon group, and an alkoxysilyl group, a substance (3) including an alkoxysilyl group, and a silanol condensation catalyst;
- and
- removing excess solution on the mold surface by washing or wiping with an organic solvent.
-24. (canceled)
Dependencies are inferred from the claim text.