POLYPHENYLENE SULFIDE (PER)FLUOROPOLYMER MATERIALS AND PROCESS FOR PREPARATION AND USE THEROF
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United States of America Patent
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Issued Date -
Feb 17, 2011
app pub date -
Aug 8, 2008
filing date -
Aug 13, 2007
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Abandoned
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Abstract
The invention relates to polyphenylene sulfide (per)fluoropolymer materials, which can be used, for example, as tribomaterials. In particular, the present invention relates to polyphenylene sulfide (per)fluoropolymer materials that have an improved tribological behavior. The polyphenylene sulfide (per)fluoropolymer materials comprise a polyphenylene sulfide polymer matrix (PPS polymer matrix) with modified (per)fluoropolymer particles distributed therein in a (poly) disperse manner, which are present bonded to the PPS polymer matrix via chemical couplings. The present invention also relates to a method in which polyphenylene sulfide (PPS) with thiol groups and/or thiolate groups is reactively compounded in a melt with one or more modified (per)fluoropolymer (micro/nano) powders in a single-step or multi-step manner.
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