Polypropylene manufacturers/trade names

In solution polymerization, monomers mix and react while dissolved in a suitable solvent or a liquid monomer under high pressure (as in the case of the manufacture of polypropylene). The solvent dilutes the monomers which helps control the polymerization rate through concentration effects. The solvent also acts as a heat sink and heat transfer agent which helps cool the locale in which polymerization occurs. A drawback to solution processes is that the solvent can sometimes be incorporated into the growing chain if it participates in a chain transfer reaction. Polymer engineers optimize the solvent to avoid this effect. An example of a polymer made via solution polymerization is poly(tetrafluoroethylene), which is better knoivn by its trade name Teflon . This commonly used commercial polymer utilizes water as the solvent during the polymerization process,... 

Manufacturers and trade names INEOS polypropylene LyondellBasell Adflex Mophen ExxonMobil Bicor , OPPalyte Dow Chemical Flint Hill Resources. 

This principle has also been used for the synthesis of l,3-dioleoyl-2-palmitoyl-in-glycerol (OPO), which can be used in infant nutrition products. Currently, this sTAG is manufactured by interesterification of tripalmitin with oleic acid using a lipase from Rhizomucor miehei (Lipozyme RMIM), and is marketed under the trade name Betapol . Excess fatty acids are removed by evaporation, and remaining tripalmitin is removed by crystallization. However, the product contains only 65% palmitic acid in the sn-2 position. In contrast, alcoholysis of tripalmitin with ethanol for 24 h using Rhizopus delemar hpase immobilized on a polypropylene carrier ( EP-lOO ) yielded 95% monopahnitin with purity >95% after crystallization. Subsequent esterification with oleic... 

---