PBT BM438

BM438(Qualified) Instrinsic viscosity(dL/g): 1.380±0.040 Melting point(℃):223.0±3.0 COOH content(mol/t): ≤30 Color value(b):4.5±3.0 Color value(L):≥87 Moisture(%):≤0.40 Ash content(mg/kg):≤300 Hundred-grain weight(g):M±0.30 Powder(mg/kg): ≤200 Different shape chip(%):≤0.4 Different color chip(PCS/500g): ≤1.0 Characteristics: Adjustable viscosity,good appearance,good thermal stability High brightness,high transparency,high cleanliness,less impurity Easy to multilayers coextrusion,excellent film-forming preperties,easy to meet with other resin to produce composite films.
Rainbow film:used in the package of cosmetic,jewelry,present and candy,advertisement,wall-film:Used in package of condiment,pickle,ham sausage,coffee and strong smell daily chemicals.Also used in package of present,candy and color box.