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METHOD OF OBTAINING A PETP MATERIAL SUITABLE FOR PRODUCTION OF TAPES, PETP MATERIAL TRANSFORMED IN SOLID STATE FOR PRODUCTION OF TAPES AND PLASTIC TAPE AS SUCH
METHOD OF OBTAINING A PETP MATERIAL SUITABLE FOR PRODUCTION OF TAPES, PETP MATERIAL TRANSFORMED IN SOLID STATE FOR PRODUCTION OF TAPES AND PLASTIC TAPE AS SUCH
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机译:获得适合于生产胶带的PETP材料的方法,以固态形式转变为生产TAPS和塑料胶带的PETP材料
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摘要
The present invention is a process of making strap using both post consumer and non-post consumer PET of wide distribution intrinsic viscosity (IV) through direct solid state polymerization in a non-peletized state to produce PET with an increased, heterogenous IV suitable for high performance strap extrusion. The process increases the IV of post-consumer resins, consisting principally of polyethylene terephthalate (PET), by preferably chopping the post-consumer plastic into flakes and chunks, rolling the flakes and chunks, preheating the flakes, and further heating the pre-heated flakes and chunks in an atmosphere of hot nitrogen gas, thereby increasing their intrinsic viscosity. PET polymers having increased viscosities provide a polymer useful in manufacturing a high performance strap material.
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