Abstract
News editors obtained the following quote from the background information suppli ed by the inventors:“Injection molding is used to manufacture various component s of a footwear article, such as a footwearsole, a footwear upper, and parts of a footwear sole or a footwear upper (e.g., cushioning elements, trim,etc.). Fo r example, an injection molding system is used, in some situations, to distribut e a polymer meltinto a cavity of a mold, after which the polymer melt solidifie s into a polymer product having the shape ofthe mold cavity. In some instances, it may be advantageous for the polymer product to include a foamedmaterial, su ch as when manufacturing a footwear sole (e.g., all of, or a portion of, a footw ear midsole).Systems configured to mold foam polymer products may include some components that are different fromsystems configured to mold non-foam polymer p roducts. For example, some injection molding systemsboth foam and mold the poly meric composition.”
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