Title: Coated razor blade

Abstract: The specific embodiments provide a razor blade comprising at least one cutting edge, and an adherent fluorocarbon polymer coating on the cutting edge. The coating has microscopic raised portions. There is also provided a method of treating a razor blade comprising depositing on the cutting edge of the blade a composition comprising a first fluorocarbon polymer and a second fluorocarbon polymer having a molecular weight greater than the first polymer. The deposited composition is heated at a temperature sufficient to cause the first polymer to melt and flow and insufficient to cause the second polymer to melt and flow. Alternatively, the molecular weights of the two polymers are chosen to be sufficiently different such that when the two polymers melt during a heating step the viscosity of the high molecular weight second polymer is sufficiently high to avoid or at least minimize flow.

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Inventors: Bogaty, Herman (Short Hills, NJ, US)
Peleckis, Anthony John (Trumbull, CT, US)

Application Number: 615012
Filing Date: 1975-09-19
Publication_date: 1977-03-15
Assignee: Warner-Lambert Company (Morris Plains, NJ)
Primary Class(es): 428/192 30/346.53, 427/258, 427/284, 428/422, 428/463
Other Classes:
US Patent Ref:

2754223	Jul, 1956	Caroselli	428/422.
2976257	Mar, 1961	Dawe et al.	428/422.
3019206	Jan, 1962	Robb	260/900.
3224094	Dec, 1965	Esemplare	428/422.
3283117	Nov, 1966	Holmes et al.	428/422.
3498826	Mar, 1970	Caroselli et al.	428/422.
3560595	Feb, 1971	Phillips et al.	260/900.
3697309	Oct, 1972	Werner	427/409.

Other Refs: 655,1931,050,244

Jan, 1963	CA
Dec, 1966	UK

Primary Examiner: Gwinnell, Harry J.
Assistant Examiner:
Attorney: Graddis; Albert H., Duggan; Jeremiah J.