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In advance of the spin-off of its performance chemicals business, DuPont has divested two lines of propellants used to deliver drugs. DuPont sold its Dymel brand of pharmaceutical-grade hydrofluorocarbon (HFC)-134a to India’s SRF. The $20 million deal includes know-how so that SRF can set up its own plant. SRF already manufactures technical-grade HFC-134a. Meanwhile, Mexico’s Mexichem, also an HFC-134a maker, has acquired DuPont’s business in pharmaceutical-grade HFC-227ea/P for $4.1 million.
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