Plastic heels of shoes and boots
AssigneeRoman Shoji Co., Ltd.
InventorKeizi Nakamura
Life of this patent
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Abstract
A plastic heel of shoes or boots decorated with irregular figure on its surface. The irregular figure is a copy of leather or leather-like material. The heel has high quality of appearance and excellence in strength, water resistance and heat resistance so as to extend the life thereof. The costs of producing the heel is reduced by using a metal mold thereof compared with the method for producing a heel by bonding leather or leather-like material to a surface of a heel body one by one.
Claims5
A plastic heel for shoes and boots having an outer surface of plastic material, said outer surface having an irregular figure which is a copy of a leather or leather-like surface, said plastic material comprising a thermoset resin selected from the group consisting essentially of phenol-formaldehyde resin, phenol-furfural resin, xylene-formaldehyde resin, ketone-formaldehyde resin, ureaformaldehyde resin, melamine-formaldehyde resin, anilineformaldehyde resin, alkyd resin, unsaturated polyester resin, and unsaturated epoxy resin;
- a thermoplastic resin selected from the group consisting essentially of polyethylene, polypropylene, polystyrene, poly-p-xylene, polyvinyl acetate, polyacrylate, polymethacrylate, polyvinyl chloride, polyvinylidene chloride, fluoroplastic, polyacrylonitrile, polyvinyl ether, polyvinyl ketone, polyether, polycarbonate, thermoplastic polyester, polyamide, diene-type plastic, polyurethane, and silicon;
- and a natural plastic selected from the group consisting essentially of natural gum, cellulose, protein and starch.
Dependencies are inferred from the claim text.