pbt(polybutylene terephthalate)

pbt(polybutylene terephthalate)

  post date: dec 28,2021
  expiry date: dec 28,2022
  detailed description: payment method: tt or lc at sight
for film
product item:
bm433,bm434
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.
end use: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.
bm433(high-class)
instrinsic viscosity(dl/g): 1.150±0.025
melting point(℃):223.0±2.0
cooh content(mol/t): ≤27
color value(b):4.5±2.0
color value(l):≥90
moisture(%):≤0.40
ash content(mg/kg):≤300
hundred-grain weight(g):m±0.10
powder(mg/kg): ≤200
different shape chip(%):≤0.3

bm433(qualified)
instrinsic viscosity(dl/g): 1.150±0.035
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

bm438(high-class)
instrinsic viscosity(dl/g): 1.380±0.030
melting point(℃):223.0±2.0
cooh content(mol/t): ≤27
color value(b):4.5±2.0
color value(l):≥90
moisture(%):≤0.40
ash content(mg/kg):≤300
hundred-grain weight(g):m±0.10
powder(mg/kg): ≤200
different shape chip(%):≤0.3

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









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