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P. Penczek


Utilization of some organic by-pro­ducts for the manufacture of selected pla­stics - (in English)


Polimery 1984, No 10-11-12, 410



DOI: dx.doi.org/10.14314/polimery.1984.410


Summary


The discussion is focussed on waste products from the manufacture of dimethyl terephthalate (DMT) and DMT-based polyester fibres. Methyl esters of aromatic acids from the fractional distillation of DMT are used for the synthesis of PVC plasticizers. Aromatic polyols for the production of fire-retardant liard polyurethane foam are manufactured from the distillation residue. High-moleculrr-weight polyethylene terephthalate (PET) waste is obtained in the manufacture of polyester fibre. PET scrap from polyester bottles is an easily accessible source of polymeric raw material. Manufacturing of alkyd resins for coatings, unsaturated polyester resins for glass reinforced plastics and polyester polyols for polyurethanes is presented. The PET scrap may also be used as an addi­tive in the production of phenolic novolaks.


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