AtoFina Makes First Large Runs of mPP Random Copolymers.Houston-based Atofina Petrochemicals, Inc. has made its first two commercial-scale runs of polypropylene random copolymers with metallocene catalyst Metallocene catalyst A transition-metal atom sandwiched between ring structures having a well-defined single catalytic site and well-understood molecular structure used to produce uniform polyolefins with unique structures and physical properties. at LaPorte, Texas. These developmental mPP copolymers range in melting point melting point, temperature at which a substance changes its state from solid to liquid. Under standard atmospheric pressure different pure crystalline solids will each melt at a different specific temperature; thus melting point is a characteristic of a substance and from 257 to 282 F and MFR MFR, n See myofascial release. from 5 to 18 g/10 min. Commercial-size runs allow the company to offer these products for customer trials. Full commercial production is expected next year. The mPP random copolymers are said to exhibit excellent optical properties for injection molding injection molding n. A manufacturing process for forming objects, as of plastic or metal, by heating the molding material to a fluid state and injecting it into a mold. and films. They are also said to offer interesting potential for stretch-blow molding, staple fibers, and nonwovens. |
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