Rubber shoe sole

Abstract

An environment-conservation rubber shoe sole is made of vegetable fibrous materials including disposed rice/wheat husks, together with natural and synthetic rubbers with suitable amounts of curing additive, activation prompter, and filler, which, after being fully mixed and stirred, are subject to pressurization to form material sheets of suitable thickness for subsequent deposition in a forming mold for curing and molding by heating and pressurizing to complete formation of shoe sole made of environment-conversation material, whereby a de-molded product can be finished with simple trimming whereby low-cost, comfortable, and easy-to-recycle environment-conservation rubber shoe sole can be manufactured and true non-pollution use of shoe sole can be realized.

1 . A rubber shoe sole that is made with a process comprising steps of mixing and preparing raw material, feeding into a mold, molding, and edge trimming, the rubber shoe sole being characterized in that the raw material comprises fibrous components comprising rice/wheat husks having a percentage of 5-25%, natural rubber of 20-50%, synthetic rubber of 25-55%, and additives of 10-30%, the components of the raw material being mixed together and added with rubber curing additive and flowability-enhancing activation promoter, which takes a percentage of 8-12%, the mixture being subject to stirring and pressurizing to form a sheet of shoe sole material, which is then deposited in a forming mold for molding by heating and pressurizing to provide a semi-product that is removed out of the mold and subject to edge trimming to finally provide a shoe sole product. 
   
   
       2 . The rubber shoe sole as claimed in  claim 1 , wherein the additives selectively comprise kaolin, calcium carbonate, glass powder, and aluminum oxide. 
   
   
       3 . The rubber shoe sole as claimed in  claim 1 , wherein the sheet of raw material is deposited into the mold together with a pre-formed synthetic rubber surface layer to be heated and pressurized simultaneously for forming a shoe sole of different materials. 
   
   
       4 . The rubber shoe sole as claimed in  claim 1  further comprising PU material or foaming rubber to carry out a secondary molding for forming a shoe sole of special purposes. 
   
   
       5 . The rubber shoe sole as claimed in  claim 1 , wherein the raw material is added with minor foaming agent to induce foaming of the shoe sole material.