SYSTEMS AND METHODS FOR SEALED CAST METAL MOLDS
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United States of America Patent
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app pub date -
Jan 4, 2013
filing date -
Jan 5, 2012
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Abandoned
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Abstract
The invention relates generally to cast metal molds that are used in the manufacture of polymer parts, and more specifically, to methods tier sealing cast metal molds used in the manufacture of polymer parts. One embodiment of the present technique relates to a cast metal mold having a sealant disposed within the pores on the surface of a mold cavity such that the sealant is configured to seal the surface of the mold cavity to produce a sealed surface. The sealed surface is blocked from absorbing or releasing gases during the production of a polymer part. The mold further includes a surface coating to facilitate the release of a product from the mold cavity. The surface coating includes a fluoropolymer base layer, which configured to adhere to the sealed surface of the mold cavity.
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