Formation of thin uniform coatings on blade edges using isostatic press

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United States of America Patent

PATENT NO 10723032
APP PUB NO 20140101945A1
SERIAL NO

14136548

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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The invention discloses utilizing isostatic-press (IP) processes apply a polymeric material (e.g, a PTFE foil) to uncoated razor blade edges forming thin, dense, and uniform coatings on blade edges which in turn exhibit low initial cutting forces correlating with more comfortable shaves. The isostatic press may be a hot isostatic press (HIP) or a cold isostatic press (CIP) or any other isostatic press process. The HIP conditions may include an environment of elevated temperatures and pressures in an inert atmosphere. The CIP conditions may include room temperature and elevated pressure. The polymeric material may be a fluoropolymer or non-fluoropolymeric material or any composite thereof. The lower surface of the polymeric material may be modified (e.g., chemical etching) to enhance adhesion to the blade edge. Two or more layers of polymeric material of similar or different properties may be isostatically pressed onto the uncoated blades.

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Patent Owner(s)

  • THE GILLETTE COMPANY LLC

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Sonnenberg, Neville Newton, US 49 564
Wang, Xiandong Acton, US 22 263

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