REDUCTION OF PLATEOUT IN CRYSTALLIZABLE POLY(ETHYLENE TEREPHTHALATE) BLENDS

摘要

Rapidly crystallizing blends of poly(ethylene terephthalate) modified with multi-stage impact modifiers, polycarbonate, and linear low density polyethylene are attractive molding compositions, but may suffer from plateout of additives upon re-processing of regrind. Low levels of hindered phenol antioxidants or sulfur-containing esters, added to the blend, are effective in reducing plate-out without affecting nucleation or mold release.