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US 2010/0149648 A1Published application
Method of extrusion molding prism film and prism film manufactured by the same
AssigneeCheil Industries Inc.
InventorsGyu Chan Cho, Jin Woo Lee, Sun Hong Park, Jong Kwan Kim
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Abstract
A method of extrusion molding a prism film and a prism film manufactured by the same, the method including providing a molten film, simultaneously forming a prism pattern and an embossed pattern on opposite surfaces of the molten film by passing the molten film through a gap between a prism roll and an emboss roll, and cooling the molten film having the prism pattern and the embossed pattern on opposite surfaces thereof.
Claims17
A method of extrusion molding a prism film, comprising:
- providing a molten film;
- simultaneously forming a prism pattern and an embossed pattern on opposite surfaces of the molten film by passing the molten film through a gap between a prism roll and an emboss roll;
- and
- cooling the molten film having the prism pattern and the embossed pattern on opposite surfaces thereof.
1 more element
Dependencies are inferred from the claim text.