FOAM AND METHOD FOR MANUFACTURING FOAM
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United States of America Patent
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Issued Date -
Oct 13, 2022
app pub date -
Sep 7, 2020
filing date -
Sep 27, 2019
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Abstract
The present invention aims to provide a foam that is less likely to deflate even after prolonged or repeated load application, has low density, and has good appearance quality, and a method for producing the foam. Provided is a foam including cells dispersed in an elastomer resin, the foam having a thickness of 300 μm or greater, the foam having a surface layer that is a portion from a surface to a depth of 100 μm and a center portion that is a portion other than the surface layer, the cells in the surface layer having an average circularity of 0.980 or greater, the cells in the center portion having an average circularity of 0.990 or greater, the cells having an average diameter of 70 μm or greater.
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