| 摘要 |
Embodiments relate to a relatively rapid transesterification process incl uding transesterifying condensation polymers such as polyethylene terephthal ate (PET), or other polyesters used in commerce, with a modifying monomer mi x containing other monomers to manufacture new polymers containing the pre-c ondensed moieties. The process preferably only involves transesterification as a reaction mechanism. The process preferably produces a rapid buildup of molecular weight and/or polymer uniformity by the high temperature transeste rification of the condensation polymer with the modifying monomer mixture. T he process can be performed in any suitable vessel including an extrusion li ne, and it has the advantage of greatly reduced cycle times over currently u sed condensation polymer utilization processes such as the recycling of PET into other materials. |
