Pool float and method of making the same

Abstract

A pool float is made of a mixture which constituents comprise polyvinyl chloride (PVC) powder, stabilizer, processing agent and chemical blowing agent, wherein the mixture is well mixed and air extracted, pressurized and heated for polymerization, cooled, and heated for foaming to be made into the pool float of the present invention.

What is claimed is:  
     
         1 . A pool float made of a mixture which constituents comprise polyvinyl chloride (PVC) powder, stabilizer, processing agent and chemical blowing agent and the mixture is well mixed and air extracted, pressurized and heated for polymerization, cooled, and heated for foaming.  
     
     
         2 . The method of making the pool float as defined in  claim 1 , comprising the steps of: 
 a) mixing the constituents of the mixture and extracting the air within the mixture out;    b) putting the mixture into a cavity of a mold and heating the mold to make the mixture taking polymerization, wherein a heating temperature thereof is lower than a critical temperature of the chemical blowing agent taking foaming;    c) cooling the mixture to be a semi-finished material;    d) heating the semi-finished material to make it foaming, wherein a heating temperature thereof is higher than a critical temperature of the chemical blowing agent taking foaming, and    e) cooling the foamed semi-finished material.    
     
     
         3 . The method as defined in  claim 2 , wherein the semi-finished material is put into a stove for heating in the step d.  
     
     
         4 . The method as defined in  claim 2 , wherein the semi-finished material has a shape and textures as same as a shape and textures of the pool float but they are different in size.  
     
     
         5 . The method as defined in  claim 2 , wherein a ratio of the constituents of the mixture is that the stabilizer is about in a range of 15-25 in weight, the processing agent is about in a range of 25-35 in weight and the chemical blowing agent is about in a range of 20-30 in weight under a condition of the PVC powder is about 100 in weight.  
     
     
         6 . The method as defined in  claim 2 , wherein a preferred ratio of the constituents of the mixture is that the stabilizer is about 20 in weight, the processing agent is about in 30 in weight and the chemical blowing agent is about 25 in weight under a condition of the PVC powder is about 100 in weight.