Cutlery – Blades – Razor blade
Patent
1977-12-16
1979-02-20
Smith, Ronald H.
Cutlery
Blades
Razor blade
204192SP, 427258, 427284, 427287, 427333, 427437, 427438, 428626, 428667, B26B 2154, B05D 500
Patent
active
041399420
ABSTRACT:
A process for producing long-lasting corrosion resistant carbon steel razor blades and the products made thereby. The process comprises first coating the cutting edges of the blades with chromium; and then immersing the blades in an electroless coating bath to provide a coating of a nickel-phosphorous, nickel- copper- phosphorous, cobalt-phosphorous or cobalt-nickel-phosphorous coating material on at least the bodies of the blades, the chromium coating preventing beading up of the coating material on the cutting edges of the blades to an extent that would require resharpening of the cutting edges. The blades may thereafter be overcoated with a carboxy-substituted silicone oil composition preferably comprising therein a long chain aliphatic acid, alcohol, amide and mixtures thereof.
REFERENCES:
patent: 2937976 (1960-05-01), Granahan et al.
patent: 3015646 (1962-01-01), Speier
patent: 3345202 (1967-10-01), Kiss et al.
patent: 3490314 (1970-01-01), Calnan
patent: 3682795 (1972-08-01), Fischbein et al.
Chang Huei-Yang
Decker Thomas G.
McDonald Richard
Sastri Suri A.
Anderson William M.
Lawrence Evan K.
Smith Ronald H.
The Gillette Company
Wise Richard A.
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