A process for preparing an RPET polymer blend component comprises
providing a quantity of RPET flakes, comminuting the RPET flakes to
prepare RPET particles having an average mean particle size from about
500 microns to about 5 microns, adding at least one specialty additive to
the RPET particles, and mixing the RPET particles and specialty additive,
to prepare a homogeneous blend of RPET carrier and specialty additive.