Patent ID: 6237444
Filing Date: 2001-05-29
Classification: B23K,B26B,B29C,B29K,B29L,Y10S

Abstract:
A method of producing a single-edged safety razor blade tool having a cutting edge and an opposed non-cutting edge, the method comprising the steps of:injecting a substantially rigid thermoplastic in a viscous state into a mold cavity of an injection-molding device shaped to form a protective cover part for a razor blade;allowing the substantially rigid thermoplastic in a viscous state to solidify;injecting a thermoplastic rubber in a viscous state into the mold cavity of the injection-molding device, the thermoplastic rubber being compatible with the substantially rigid thermoplastic;allowing the thermoplastic rubber to solidify, thereby forming a first cover part comprising an inner layer and an outer layer, the inner layer comprising the substantially rigid thermoplastic and the outer layer comprising the compatible thermoplastic rubber covering the inner layer;forming a second cover part, which is substantially identical and complementary to the first cover part; andattaching the first cover part and the second cover part to the non-cutting edge of the safety razor blade.