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US 10,518,429 B2Granted
Polymeric cutting edge structures and method of manufacturing polymeric cutting edge structures
AssigneeThe Gillette Company
InventorsMatthias Gester, Roman Kiyan, Ulf Hinze, Kestutis Kurselis
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Abstract
A functional polymeric cutting edge structure and methods for the manufacturing cutting edge structures using polymeric materials are provided. A razor blade for use in a razor cartridge or a blade box for assembly in a razor cartridge frame may be formed using the present invention.
Claims18
A method for manufacturing at least one cutting edge structure comprising the steps of:
- providing a first polymeric material in liquid form in a container;
- providing at least one cutting edge template within said first polymeric material;
- curing said first polymeric material while said at least one cutting edge template is disposed in said first polymeric material to form a base structure;
- removing said template to obtain a cavity in said base structure;
- filling said cavity with a second material, said second material being a precursor for a polymeric material;
- curing said second material;
- and
- separating said base structure and said cured second polymeric material, said at least one cutting edge structure comprised of said cured second polymeric material,
- wherein said at least one cutting edge structure is a razor blade or a portion of a blade box and wherein a tip radius of said at least one cutting edge structure is less than 1 micrometer.
6 more elements
Dependencies are inferred from the claim text.