Non-fluorinated organic coating material for a razor blade

Abstract

A razor blade with a sharpened cutting edge with an outer bonding surface. A non-fluorinated organic coating material deposited on the outer bonding surface forming an outermost layer of the sharpened cutting edge. The non-fluorinated organic coating is composed of one or more self-assembled monolayers.

What is claimed is: 
     
         1 . A razor blade comprising a sharpened cutting edge with an outer bonding surface and a non-fluorinated organic coating material deposited on the outer bonding surface forming an outermost layer of the sharpened cutting edge, wherein the non-fluorinated organic coating is composed of one or more self-assembled monolayers. 
     
     
         2 . The razor blade of  claim 1 , wherein the non-fluorinated organic coating comprises an organosilane derived from a compound having a hydrolysable group. 
     
     
         3 . The razor blade of  claim 1 , wherein the non-fluorinated organic coating comprises an organosilane derived from a compound selected from the group consisting of: a chlorosilane, an alkoxysilane, a hydroxysilane, and a hydrosilane. 
     
     
         4 . The razor blade of  claim 3 , wherein the alkoxysilane is selected from the group consisting of: a trimethoxysilane, dimethoxysilane, and an ethoxysilane. 
     
     
         5 . The razor blade of  claim 3 , wherein the organosilane comprises one or more alkyl side chains, wherein the one or more alkyl side chains have saturated carbon-carbon bonds. 
     
     
         6 . The razor blade of  claim 5 , wherein the alkyl side chains consist of the formula CH 3 (CH 2 ) n  wherein n=0-18. 
     
     
         7 . The razor blade of  claim 1 , wherein the non-fluorinated organic coating comprises an organosilane derived from one of a bis(trimethylsilyl)amine or a hexamethyldisiloxane. 
     
     
         8 . The razor blade of  claim 1 , wherein the non-fluorinated organic coating comprises an organosilane derived from a chlorosilane consisting of one, two, or three chlorine atoms. 
     
     
         9 . The razor blade of  claim 1 , wherein the non-fluorinated organic coating comprises an organosilane derived from a chlorosilane selected from the group consisting of: methyltrichlorosilane, dimethyldichlorosilane, t-butyltrichlorosilane, 3,3-dimethylbutyltrichlorosilane, dodecyltrichlorosilane, and mixtures thereof. 
     
     
         10 . The razor blade of  claim 1 , wherein the sharpened cutting edge comprises a metal, an alloy, or a ceramic, wherein the metal, alloy or ceramic comprises one or more of: chromium, platinum, boron, titanium, vanadium, aluminum, silicon, iron, cobalt, nickel, copper, hafnium, tantalum, tungsten, zirconium, molybdenum, or niobium; including carbides, oxides, nitrides, and oxynitrides thereof. 
     
     
         11 . The razor blade of  claim 1 , wherein the non-fluorinated organic coating material has a surface energy of less than 33 dynes/cm. 
     
     
         12 . The razor blade of  claim 1 , wherein the non-fluorinated organic coating material forms a layer that is less than 100 Angstroms thick. 
     
     
         13 . The razor blade of  claim 1 , wherein the one or more self-assembled monolayers comprises a first self-assembled monolayer adhered to the outer bonding layer and to a second self-assembled monolayer. 
     
     
         14 . The razor blade of  claim 14 , wherein the second self-assembled monolayer is bonded directly to the first self-assembled monolayer and directly to the outer bonding surface. 
     
     
         15 . The razor blade of  claim 1 , further comprising at least one additional layer of material disposed between the sharpened cutting edge and the non-fluorinated organic coating material, wherein at least one additional layer of material comprises one or more of: (i) diamond, amorphous diamond, or diamond-like-carbon (DLC); or (ii) chromium, platinum, boron, chromium diboride, titanium, titanium diboride, vanadium, aluminum, silicon, iron, cobalt, nickel, copper, zinc, copper, hafnium, tantalum, tungsten, zirconium, molybdenum, or niobium, and oxides, nitrides, and oxynitrides thereof. 
     
     
         16 . The razor blade of  claim 1 , wherein sharpened cutting edge comprises a substrate with an interlayer bonded to the substrate. 
     
     
         17 . The razor blade of  claim 16 , further the outer bonding surface comprises a hard coating layer bonded to the interlayer. 
     
     
         18 . The razor blade of  claim 1 , where non-fluorinated organic coating material is a selected from a group consisting of: silanes, carboxylates, catechols, amines, alkynes, and alkenes. 
     
     
         19 . The razor blade of  claim 1 , wherein the non-fluorinated organic coating material forms a layer that is less than 500 Angstroms thick. 
     
     
         20 . The razor blade of  claim 1 , wherein the non-fluorinated organic coating material is not a gel.