Coating cutting edges with fluorocarbon polymers

Details Coating cutting edges with fluorocarbon polymers Coating cutting edges with fluorocarbon polymers

B - Operations, Transporting

05

D

B05D 3/06 (2006.01) B05D 5/08 (2006.01) B26B 21/60 (2006.01) C08F 8/50 (2006.01) B05D 3/02 (2006.01)

Patent

CA 2122349

A method of forming a polyfluorocarbon coating on a razor blade cutting edge comprises subjecting a fluorocarbon polymer having a molecular weight of at least 1,000,000 in dry powder form to ionizing irradiation to reduce the molecular weight of the polymer forming a dispersion of the irradiated polymer in a volatile organic liquid, spraying the dispersion on to a razor blade cutting edge, and heating the coating obtained to sinter the polyfluorocarbon. The polyfluorocarbon preferably is polytetrafluoroethylene and irradiation preferably is effected to obtain a telomer having a molecular weight of about 25,000.

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