Razor cartridge with lubricating strip
AssigneeBic-Violex SA
InventorsAmalia Skarmoutsou, Nikolaos Chatzigrigoriou
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Abstract
The disclosure deals with a lubricative skin engaging member with progressive release of lubricating polymer from a water-insoluble matrix containing thermoplastic elastomer compound and maleic anhydride copolymer and lubricating polymer in concentration less than 30%. The disclosure lies in the use of the maleic anhydride in grafted form on polyethylene and the incorporation of water-soluble lubricating polymer in concentration less than 30% in the thermoplastic elastomer compound, leading to a lubricative mixture, and to a skin engaging member, with increased homogeneity and water absorption ability that assist in the lubricating polymer release in a progressive and controllable manner.
Claims11
A skin engaging member for a razor cartridge comprising:
- a water-insoluble matrix including:
- a maleic anhydride copolymer in grafted form and a thermoplastic elastomer compound;
- and
- a water-soluble lubricating polymer dispersed in the water-insoluble matrix,
- wherein the water-soluble lubricating polymer is in a concentration of less than 30% by weight of the skin engaging member, and wherein there is no evidence of thickness change in the skin engaging member after repeated uses.
Dependencies are inferred from the claim text.