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Chementator: An improved PC resin

By Chemical Engineering |

PolymersNet Co. Ltd. (Seoul, South Korea; edlinks.chemengonline.com/5827-548) and Cyclics Corp. (Schenectady, N.Y.; edlinks.chemengonline.com/5827-549) announced the first commercial application of CBT (cyclic butylene terephthalate) resin as a modified polycarbonate (PC). PC is used for making compact disks and automobile components, but up to now, it has been difficult to mold into very large or very thin-walled parts due to its high melt viscosity. By adding small amounts of CBT resin to PC, the melt flow can be increased by 30–50%, says Cyclics. PolymersNet has commercialized a high-flow PC containing CBT resin for use in a digital memory card, an application that was formerly made in high-heat ABS (acrylonitrile butadiene styrene) resin.   Click here for a full pdf version of the Chementator Section
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