FLUOROELASTOMERS WITH PERFLUORINATED THERMOPLASTIC FILLERS
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United States of America Patent
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Issued Date -
Jun 6, 2024
app pub date -
Jun 30, 2022
filing date -
Jul 12, 2021
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Abstract
Fluoroelastomers containing at least 25 weight percent perfluorinated thermoplastic fillers are described. The perfluorinated thermoplastic fillers comprise a first perfluorinated thermoplastic filler having a first d50 particle size of 10 to 250 nanometers. and a second perfluorinated thermoplastic filler having a second d50 particle size of 5 to 500 micrometers. The first thermoplastic filler may be obtained from a latex while the second thermoplastic filler may be obtained as a dry powder. Methods of making such materials and cured articles prepared from them are also described.
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