Abstract: Disclosed is a process for the production of polyethylene terephthalate (PET), comprising the steps of (i) reacting di(C.sub.1 -C.sub.4)alkyl terephthalate with ethylene glycol to yield bis-(2-hydroxyethyl) terephthalate, (ii) adding a sequestering agent based on phosphorus and (iii) polycondensing the bis-(2-hydroxyethyl) terephthalate to produce PET; wherein in step (i) a zinc catalyst is present and in step (iii) an antimony catalyst is additionally present, the amount of zinc being in the range of from 0.003 to 0.008% by weight (30 to 80 ppm), the amount of phosphorus being in the range of from 0.001 to 0.01% (10 to 100 ppm), and the amount of antimony being in the range of from 0.01 to 0.05% by weight (100 to 500 ppm), in each case such weights being relative to the weight of the di(C.sub.1 -C.sub.4)alkyl terephthalate; the molar ratio of the antimony to the zinc being in the range of from 1:0.95 to 1:0.

Abstract: Reclaimable overhead transparencies for plain paper copiers are obtained by strongly adhering particulates having a large mean particle size to a transparent base sheet. A transparent, polymeric antistatic binder composition which does not substantially gel or yellow upon heating to reclamation temperatures and a glycidoxy silane are used to strongly adhere the large particulates to the base sheet. The polymeric antistatic binder composition is a mixture of an acrylic polymer or copolymer with an antistatic copolymer. The use of large particulates and the use of the mixture of an acrylic polymer or copolymer and an antistatic copolymer improves antistatic properties without the need for yellowing, foul-odor producing amounts of nitrogenous antistatic agents or gel-forming amounts of cross-linking agents which would adversely affect reclaimability. An emulsified wax is included in the coating composition to reduce the static coefficient of friction of the overhead transparency.