POLYURETHANE FOAM COMPOSITION CONTAINING TPU POWDER AND MANUFACTURING METHOD OF SHOE INSOLE USING THE SAME
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United States of America Patent
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Issued Date -
Sep 26, 2024
app pub date -
Jun 15, 2023
filing date -
Mar 23, 2023
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Abstract
The present invention relates to a polyurethane foam composition containing polyurethane powder and a method for manufacturing shoe insoles using the same. The polyurethane foam composition with Thermoplastic polyurethane (TPU) powder has an average particle size of 50 to 300 μm for an eco-friendly polyurethane (PU) foam composition made of water foam, and thus the polyurethane foam sheet formed therefrom is put into a mold and a Heat Press to form shoe insoles. The polyurethane foam composition containing TPU powder and a manufacturing method of footwear insole using the same are provided, which can reduce the overhead energy cost.
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