# US 5,349,750 A · Shaving system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 5,349,750 A - Document ID: US5349750A - Status: Granted - Kind: A - Application number: 07/865,594 - Filed: 1992-04-09 - Granted: 1994-09-27 - Earliest claimed: 1990-09-28 - Assignees: The Gillette Company - Inventors: Mingchih M. Tseng - Web page: https://patentgrep.com/patent/US5349750A ## CPC - A61K 8/891: saturated, e.g. dimethicone, phenyl trimethicone, C24-C28 methicone or stearyl dimethicone - A61K 8/8135: {Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an acyloxy radical of a saturated carboxylic acid, of carbonic acid or of a haloformic acid; Compositions of derivatives of such polymers, e.g. vinyl esters (polyvinylacetate)} - A61K 8/86: Polyethers - A61Q 9/02: Shaving preparations - B26B 21/443: {Lubricating strips attached to the razor head} - A61K: PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES (devices or methods specially adapted for bringing pharmaceutical products into particular physical or administering forms A61J3/00; chemical aspects of, or use of materials for deodorisation of air, for disinfection or sterilisation, or for bandages, dressings, absorbent pads or surgical articles A61L; soap compositions C11D) - A61Q: SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS - B26B: HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR (for harvesting A01D; for horticulture, for forestry A01G; for butchering or meat treatment A22; for manufactering or repairing footwear A43D; nail clippers or cutters A45D29/02; kitchen equipment A47J; {vegetable slicers, julienne cutters and similar devices and holders therefor, B26D3/28}; for surgical purposes A61B; for metal B23D; cutting by abrasive fluid jets B24C5/02; plier-like tools with cutting edges B25B7/22; pincers B25C11/02; handles for hand implements, in general B25G; guillotine-type cutters B26D; {perforating by non-mechanical means, e.g. by fluid jet, B26F1/26}; for erasing B43L19/00; for textile materials D06H) ## Abstract A shaving system having a blade and support structure that define external skin engaging surfaces in front of and to the rear of the cutting edge of the blade, the support structure including a shaving aid composite comprised of a blend of ethylene vinyl acetate and a shaving aid composition adjacent the cutting edge of the blade. ## Claims ### Claim 1 A shaving system of the wet shave type comprising a blade member, and structure defining an external skin-engaging portion adjacent the shaving edge of said blade member, said skin-engaging portion including a shaving aid composite comprising an extruded or injection molded blend of ethylene vinyl acetate and an effective amount of polyethylene oxide in intimate mixture with said ethylene vinyl acetate. ### Claim 2 (depends on 1) The shaving system of claim 1 wherein said ethylene vinyl acetate carrier contains between five and fifty weight percent vinyl acetate. ### Claim 3 (depends on 1) The shaving system of claim 1 wherein said ethylene vinyl acetate contains approximately twenty-five percent vinyl acetate. ### Claim 4 (depends on 1) The shaving system of claim 1 wherein said shaving aid composite comprises ten to fifty percent by weight ethylene vinyl acetate and fifty to ninety percent by weight of said polyethylene oxide. ### Claim 5 (depends on 1) The shaving system of claim 1 wherein said shaving aid composite comprises a blend of ethylene vinyl acetate, high molecular weight polyethylene oxide that has a molecular weight of above three million and low molecular weight polyethylene oxide that has a molecular weight of less than one million. ### Claim 6 (depends on 5) The shaving system of claim 5 wherein said shaving aid composite comprises approximately twenty-five percent by weight ethylene vinyl acetate, approximately forty-five percent by weight of said high molecular weight polyethylene oxide and approximately thirty percent by weight of aid low molecular weight polyethylene oxide. ### Claim 7 (depends on 1) The shaving system of claim 1 wherein said shaving aid composite comprises about twenty-five percent by weight ethylene vinyl acetate, about seventy percent by weight polyethylene oxide, and about five percent by weight silicone wax. ### Claim 8 (depends on 1) The shaving system of claim 1 wherein said shaving aid composite comprises about twenty percent by weight ethylene vinyl acetate, about seventy percent by weight polyethylene oxide and about five percent by weight sucrose stearate. ### Claim 9 (depends on 1) The shaving system of claim 1 wherein said shaving aid composite was extruded at a temperature in the range of 100.degree.-140.degree. C. ### Claim 10 (depends on 1) The shaving system of claim 1 wherein said shaving aid composite was injection molded at a temperature in the range of 100.degree.-140.degree. C. ### Claim 11 (depends on 1) The shaving system of claim 1 wherein said shaving aid composite is of extruded material and comprises ten to fifty percent by weight ethylene vinyl acetate and fifty to ninety percent by weight polyethylene oxide. ### Claim 12 (depends on 11) The shaving system of claim 11 wherein said shaving aid composite comprises an extruded blend of ethylene vinyl acetate, high molecular weight polyethylene oxide that has a molecular weight of above three million and low molecular weight polyethylene oxide that has a molecular weight of less than one million. ### Claim 13 (depends on 11) The shaving system of claim 11 wherein said extruded composite is attached to an external skin-engaging portion rearwardly of said shaving edge. ### Claim 14 (depends on 1) The shaving system of claim 1 wherein said shaving aid composite is injection molded and comprises ten to fifty percent by weight ethylene vinyl acetate and fifty to ninety percent by weight shaving aid. ### Claim 15 (depends on 14) The shaving system of claim 14 wherein said shaving aid composite comprises an injection molded blend of ethylene vinyl acetate, high molecular weight polyethylene oxide that has a molecular weight of above three million and low molecular weight polyethylene oxide that has a molecular weight of less than one million. ### Claim 16 (depends on 14) The shaving system of claim 14 wherein said molded composite is attached to an external skin-engaging portion rearwardly of said shaving edge.