Method for fabricating microstructured inserts for injection molding
AssigneeEssilor International
InventorsElliot French, Burcin Ikizer, Zbigniew Tokarski, Eric Gacoin, Sebastien Henrion
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Abstract
A method for forming a mold insert includes forming a stamp, a surface of the stamp including a plurality of inverted microstructures formed thereon; and pressing the stamp into a medium disposed on a surface of a first mold insert to form a microstructured film, the microstructured film including a plurality of microstructures formed on a surface of the microstructured film based on the plurality of inverted microstructures, the plurality of microstructures being complementary to the plurality of inverted microstructures.
Claims15
A method of forming a mold insert, the method comprising:
- forming a stamp, a surface of the stamp including a plurality of inverted microstructures formed thereon;
- pressing the stamp into a medium disposed on a surface of a first mold insert to form a microstructured film, the microstructured film including a plurality of microstructures formed on a surface of the microstructured film based on the plurality of inverted microstructures, the plurality of microstructures being complementary to the plurality of inverted microstructures;
- un-coupling said stamp to obtain the first mold insert with the microstructured film formed thereon;
- covering at least a portion of the surface of the first mold insert with an octafunctional epoxy resin to form the medium;
- and
- soft-baking the first mold insert covered with the formed medium.
A molding apparatus, comprising:
- a mold including at least a first mold insert, the first mold insert having a microstructured film disposed thereon, the microstructured film including a plurality of microstructures formed thereon,
- wherein a material of the first mold insert is glass or metal, and a material of the microstructured film is an octafunctional epoxy resin.
Dependencies are inferred from the claim text.