chemical · input
Polysulfone and PVDF polymer (membrane substrate)
Polysulfone (PSf) support layer for RO thin-film composite membranes; PVDF for ultrafiltration hollow fibers; Solvay (Solef® PVDF) and Arkema (Kynar® PVDF) are primary PVDF suppliers; Udel® polysulfone from Solvay
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Source countries
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Companies
1
Goods affected
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Claims on record
What depends on it
Goods that need this input
1 essential American goods rely on polysulfone and pvdf polymer (membrane substrate) somewhere upstream in their supply chain.