PBT (Polybutylene terephthalate)

 

Polybutylene terephthalate (PBT) is a semi-crystalline thermoplastic material belonging to the polyester family. It's produced by the polymerization of butadiene and terephthalic acid. PBT differs chemically from PET in its number of -CH2 groups. The mechanical characteristics of the two materials are similar but slightly lower for PBT. Both materials are subject to hydrolytic degradation but PBT has a low moisture absorption. Unlike PET this material crystallizes quickly and without the need for nucleating agents. Furthermore, compared to PET, this material has a melting temperature of Tm (approx 224 ° C) and a lower glass transition temperature of Tg (22-43 ° C). The advantage of lower processing temperatures is off-set by lower heat distortion temperatures.

Chemical Formula PBT: (C12H12O4)n
CAS Number PBT: 24968-12-5
Chemical Name PBT (IUPAC): Poly(oxy-1,4-butanediyloxycarbonyl-1,4-phenylenecarbonyl)
Recycling Code PBT: number 7
Recycling Symbol PBT: simbolo riciclo PBT

PBT Commercial names and producers

 

  • Anjadur (almaak international)
  • Arnite (DSM)
  • Badadur (Bada)
  • Bergadur (PolyOne / Bergmann)
  • Celanex (Celanese)
  • Crastin (DuPont)
  • DIC PBT (Dai Nippon Japan)
  • Duranex (Polyplastics)
  • Enduran (Sabic)
  • Gebadur (Geba)
  • Infino (Samsung Lotte)
  • Isodur (Sirmax)
  • Lupox (LG Chemicals)
  • Pibiter (So.F.Ter)
  • Pocan (Lanxess)
  • Polyshine (Polykemi)
  • Raditer (Radici)
  • Saxadur (Sax Polymers)
  • Schuladur (Schulman)
  • Staren (Samsung)
  • Ultradur (BASF)
  • Valox (Sabic)
  • Vestodur (Evonik)

PBT European Distributors:

 

  • BIGLER (Raditer, Radiflam B, Pibifor)
  • XIFA (Valox, Xenoy)
  • Schulman (Schuladur, QR Resin, Polyflam, Matrixx, Lucent PC, Ecollent, Diamaloy)
  • Mega Polymers (Arnite, Celanex, Crastin, Kebater, Pocan, Radiflam, Ultradur, Valox, Vestodur)
  • Tekuma (Infino)
  • KD Feddersen (Precite, Celanex, Vandar)
  • PolyOne (Crastin, Edgetecl, Gravi-tech, LubriOne, Trilliant)
  • ALBIS (Alcom, Altech, Pocan, Ultradur, Makroblend )
  • Biesterfield (Crastin)
  • Nexeo (Colorfast, Electrafil, Enviroplas, HiFill, Colorcomp, Lubricomp, Thermocomp, Pocan, Ultradur, Valox)
  • RESINEX (Arnite, Celanex)
  • Ultrapolymers (Ultradur, Later, Latilub, Luvocom, Thermocomp, Valox, Colorcomp, Lubricomp, Stat-kon, Tribit)
  • TER Plastics (Arnite T, CCP PBT, Terez PBT,)

Main compounds with PBT:

 

  • PBT/PC (Blend Polybutylene terephthalate Polycarbonate)
  • PBT/ASA (Blend Polybutylene terephthalate acrylic styrene acrylonitrile )
  • PBT/PET (Blend Polybutylene terephthalate PolyethyleneTerephthalate)
  • PBT-GF30 (Polybutylene terephthalate fibre glass 30%)
  • PBT-GF15FR (PolibutilenTereftalato fibre glass 15% with flame retardant)
 

Chemical and physical properties:

It is a semi-crystalline material with excellent chemical resistance, mechanical rigidity, exceptional electrical properties (high dielectric strength and insulation resistance) and heat resistance, properties that remain stable in a wide range of environmental conditions.
Compared to Polyamide, PBT technopolymers have a greater specific weight, lower melting point, greater dimensional stability due to the low influence of humidity variations, and lower impact resistance.
PBT and PET are sensitive to aging via the action of UV rays and must be adequately shielded if used outdoors.

History of PBT

The preparation of the first polyester resin dates back to Berzelius, Gay-Lussac and Pelouze in 1847 and 1883 when its first application was for a surface coating. At that time the resin was known as alkyd (alcohol + acid). PBT officially debuted on the market more or less along with PET around 1970 and was presented as a plastic engineering material.

PBT standard density: 1,24 – 1,34 g/cm3 (ISO 1183)
PBT melting point Tm: 220 °C
PBT glass transition temperature Tg: 22 - 43 °C

 

PBT application markets

 

  • Electrical appliances
  • Electrical components
  • Automotive

PBT transformation technologies

 

  • Injection molding
  • Extrusion
  • Film
  • Filaments
  • Rotating molding

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Compound

PBT-GF30 polybutylene terephthalate

First choice - Slow moving QUALITY-PRIME QUALITY-PRIME

KUNDER PBT G30 H RG
granule/pellet Light grey - 7042 8160 Kg octabin 1.28 €/Kg

Compound

PBT-GF30 polybutylene terephthalate

Recycled /Regrinded QUALITY-RECYCLED QUALITY-RECYCLED

CRASTIN T805 BK 851
regrinded Black 2000 Kg bags on pallet 0.99 €/Kg

Compound

PBT-GF30 polybutylene terephthalate

First choice - virgin QUALITY-PRIME QUALITY-PRIME

VALOX 4032
granule/pellet Black 4400 Kg bags on pallet 2.40 €/Kg

Compound

PBT-GF30 polybutylene terephthalate

First choice - Slow moving QUALITY-PRIME QUALITY-PRIME

CCP 4130 NATURALE 201D
granule/pellet Natural / Neutral 2575 Kg bags on pallet 3.00 €/Kg

Compound

PBT-GF30 polybutylene terephthalate

First choice - Slow moving QUALITY-PRIME QUALITY-PRIME

Crastin SK605 NC010
granule/pellet Natural / Neutral 25 Kg bags on pallet 3.00 €/Kg

Compound

PBT-GF30 polybutylene terephthalate

First choice - Slow moving QUALITY-PRIME QUALITY-PRIME

Arnite TV8 260
granule/pellet Black 1250 Kg bags on pallet 2.75 €/Kg

Compound

PBT-GF30 polybutylene terephthalate

Recycled /Regrinded QUALITY-RECYCLED QUALITY-RECYCLED

Pocan B 3235
regrinded Natural / Neutral 700 Kg bags on pallet 0.70 €/Kg

Compound

PBT-GF10 FR polybutylene terephthalate

First choice - Slow moving QUALITY-PRIME QUALITY-PRIME

CRASTIN T841 FR BK851
granule/pellet Black 4000 Kg bags on pallet 2.60 €/Kg

Compound

PBT-GF10 FR polybutylene terephthalate

First choice - Slow moving QUALITY-PRIME QUALITY-PRIME

Vampter 1026 V0
granule/pellet Natural / Neutral 1475 Kg bags on pallet 2.80 €/Kg

Compound

PBT+GF30 polybutylene terephthalate

Recycled /Regrinded QUALITY-RECYCLED QUALITY-RECYCLED

Pocan B 3233 HR
regrinded Natural / Neutral 6000 Kg bigbag 1.000-1.100 kg 1.00 €/Kg

Compound

PBT FR polybutylene terephthalate

First choice - Slow moving QUALITY-PRIME QUALITY-PRIME

CELANEX X680
granule/pellet Natural / Neutral 250 Kg bags on pallet 1.00 €/Kg

Compound

PBT + GF20 polybutylene terephthalate

Recycled /Regrinded QUALITY-RECYCLED QUALITY-RECYCLED

Pocan B 3225
regrinded Natural / Neutral 6000 Kg bigbag 1.000-1.100 kg 1.00 €/Kg

Polymer

PBT polybutylene terephthalate

First choice - Slow moving QUALITY-PRIME QUALITY-PRIME

CCP 4115 BLACK 104K
granule/pellet Black 825 Kg bags on pallet 2.75 €/Kg

Polymer

PBT polybutylene terephthalate

First choice - Slow moving QUALITY-PRIME QUALITY-PRIME

CCP 4115 NATURALE 200K
granule/pellet Natural / Neutral 600 Kg bags on pallet 2.75 €/Kg

Polymer

PBT polybutylene terephthalate

First choice - Slow moving QUALITY-PRIME QUALITY-PRIME

CCP PBT/PC 6100-154
granule/pellet Black 1950 Kg bags on pallet 4.30 €/Kg

Polymer

PBT polybutylene terephthalate

First choice - Slow moving QUALITY-PRIME QUALITY-PRIME

CCP 6130 BLACK 104
granule/pellet Black 1975 Kg bags on pallet 2.70 €/Kg

Polymer

PBT polybutylene terephthalate

Recycled /Regrinded QUALITY-RECYCLED QUALITY-RECYCLED

-
regrinded Natural / Neutral 44000 Kg bigbag 1.000-1.100 kg 1.15 €/Kg

Polymer

PBT polybutylene terephthalate

Recycled /Regrinded QUALITY-RECYCLED QUALITY-RECYCLED

Arnite T06 202
regrinded Natural / Neutral 30000 Kg bigbag 1.000-1.100 kg 1.20 €/Kg

Polymer

PBT polybutylene terephthalate

Recycled /Regrinded QUALITY-RECYCLED QUALITY-RECYCLED

ULTRADUR B 1520 FC
granule/pellet Black 25000 Kg bags on pallet 0.88 €/Kg

Polymer

PBT polybutylene terephthalate

Recycled /Regrinded QUALITY-RECYCLED QUALITY-RECYCLED

-
regrinded Miscellaneous 22000 Kg bigbag 1.000-1.100 kg 0.27 €/Kg

Polymer

PBT polybutylene terephthalate

Off specs QUALITY-PRIME QUALITY-PRIME

POCAN
granule/pellet Natural / Neutral 20000 Kg octabin 1.25 €/Kg

Polymer

PBT polybutylene terephthalate

First choice - Slow moving QUALITY-PRIME QUALITY-PRIME

Pocan DP 7318
granule/pellet White 5875 Kg bags on pallet 1.09 €/Kg

Polymer

PBT polybutylene terephthalate

Off specs QUALITY-PRIME QUALITY-PRIME

PBT HI-FLOW OFFGRADE
granule/pellet Natural / Neutral 22000 Kg bigbag 1.000-1.100 kg 1.19 €/Kg

Polymer

PBT polybutylene terephthalate

Off specs QUALITY-PRIME QUALITY-PRIME

Crastin CE2055 BK580
granule/pellet Light grey - GY858 3900 Kg bags on pallet 1.09 €/Kg

Polymer

PBT polybutylene terephthalate

Off specs QUALITY-PRIME QUALITY-PRIME

Ultradur B 4520
granule/pellet Natural / Neutral 10000 Kg octabin 1.09 €/Kg

Polymer

PBT polybutylene terephthalate

Off specs QUALITY-PRIME QUALITY-PRIME

CRASTIN S600LF NC010
granule/pellet Natural / Neutral 3000 Kg bags on pallet 1.09 €/Kg

Polymer

PBT polybutylene terephthalate

Off specs QUALITY-PRIME QUALITY-PRIME

CRASTIN CRA6137 NC010
granule/pellet Natural / Neutral 1000 Kg octabin 1.09 €/Kg

Polymer

PBT polybutylene terephthalate

Off specs QUALITY-PRIME QUALITY-PRIME

CRASTIN FGS621F50 NC010
granule/pellet Natural / Neutral 1000 Kg octabin 1.09 €/Kg

Polymer

PBT polybutylene terephthalate

Off specs QUALITY-PRIME QUALITY-PRIME

ULTRADUR B 4546
granule/pellet Natural / Neutral 2000 Kg octabin 1.09 €/Kg

Polymer

PBT polybutylene terephthalate

Off specs QUALITY-PRIME QUALITY-PRIME

Ultradur B 6550
granule/pellet Natural / Neutral 22000 Kg bigbag 1.000-1.100 kg 1.15 €/Kg

Polymer

PBT polybutylene terephthalate

Off specs QUALITY-PRIME QUALITY-PRIME

Ultradur B 4500
granule/pellet Natural / Neutral 22000 Kg bigbag 1.000-1.100 kg 1.15 €/Kg

Polymer

PBT polybutylene terephthalate

First choice - Slow moving QUALITY-PRIME QUALITY-PRIME

PBT BLACK RESIN
granule/pellet Black 17000 Kg octabin 0.75 €/Kg

Polymer

PBT polybutylene terephthalate

Recycled /Regrinded QUALITY-RECYCLED QUALITY-RECYCLED

-
regrinded White 10000 Kg bigbag 1.000-1.100 kg 0.39 €/Kg

Polymer

PBT polybutylene terephthalate

First choice - virgin QUALITY-PRIME QUALITY-PRIME

Tecodur PB50 NL
granule/pellet Natural / Neutral 2200 Kg bags on pallet 1.70 €/Kg

Polymer

PBT polybutylene terephthalate

Recycled /Regrinded QUALITY-RECYCLED QUALITY-RECYCLED

ULTRADUR B 1520 FC
regrinded Miscellaneous 20000 Kg bigbag 1.000-1.100 kg 0.35 €/Kg

Polymer

PBT polybutylene terephthalate

Recycled /Regrinded QUALITY-RECYCLED QUALITY-RECYCLED

Crastin FGS600F40 NC010
regrinded Miscellaneous 20000 Kg bigbag 1.000-1.100 kg 0.40 €/Kg
 

Compound

PBT-GF30 polybutylene terephthalate

KUNDER PBT G30 H RG

8160 Kg 1.28 €/Kg

Compound

PBT-GF30 polybutylene terephthalate

CRASTIN T805 BK 851

2000 Kg 0.99 €/Kg

Compound

PBT-GF30 polybutylene terephthalate

VALOX 4032

4400 Kg 2.40 €/Kg

Compound

PBT-GF30 polybutylene terephthalate

CCP 4130 NATURALE 201D

2575 Kg 3.00 €/Kg

Compound

PBT-GF30 polybutylene terephthalate

Crastin SK605 NC010

25 Kg 3.00 €/Kg

Compound

PBT-GF30 polybutylene terephthalate

Arnite TV8 260

1250 Kg 2.75 €/Kg

Compound

PBT-GF30 polybutylene terephthalate

Pocan B 3235

700 Kg 0.70 €/Kg

Compound

PBT-GF10 FR polybutylene terephthalate

CRASTIN T841 FR BK851

4000 Kg 2.60 €/Kg

Compound

PBT-GF10 FR polybutylene terephthalate

Vampter 1026 V0

1475 Kg 2.80 €/Kg

Compound

PBT+GF30 polybutylene terephthalate

Pocan B 3233 HR

6000 Kg 1.00 €/Kg

Compound

PBT FR polybutylene terephthalate

CELANEX X680

250 Kg 1.00 €/Kg

Compound

PBT + GF20 polybutylene terephthalate

Pocan B 3225

6000 Kg 1.00 €/Kg

Polymer

PBT polybutylene terephthalate

CCP 4115 BLACK 104K

825 Kg 2.75 €/Kg

Polymer

PBT polybutylene terephthalate

CCP 4115 NATURALE 200K

600 Kg 2.75 €/Kg

Polymer

PBT polybutylene terephthalate

CCP PBT/PC 6100-154

1950 Kg 4.30 €/Kg

Polymer

PBT polybutylene terephthalate

CCP 6130 BLACK 104

1975 Kg 2.70 €/Kg

Polymer

PBT polybutylene terephthalate

44000 Kg 1.15 €/Kg

Polymer

PBT polybutylene terephthalate

Arnite T06 202

30000 Kg 1.20 €/Kg

Polymer

PBT polybutylene terephthalate

ULTRADUR B 1520 FC

25000 Kg 0.88 €/Kg

Polymer

PBT polybutylene terephthalate

22000 Kg 0.27 €/Kg

Polymer

PBT polybutylene terephthalate

POCAN

20000 Kg 1.25 €/Kg

Polymer

PBT polybutylene terephthalate

Pocan DP 7318

5875 Kg 1.09 €/Kg

Polymer

PBT polybutylene terephthalate

PBT HI-FLOW OFFGRADE

22000 Kg 1.19 €/Kg

Polymer

PBT polybutylene terephthalate

Crastin CE2055 BK580

3900 Kg 1.09 €/Kg

Polymer

PBT polybutylene terephthalate

Ultradur B 4520

10000 Kg 1.09 €/Kg

Polymer

PBT polybutylene terephthalate

CRASTIN S600LF NC010

3000 Kg 1.09 €/Kg

Polymer

PBT polybutylene terephthalate

CRASTIN CRA6137 NC010

1000 Kg 1.09 €/Kg

Polymer

PBT polybutylene terephthalate

CRASTIN FGS621F50 NC010

1000 Kg 1.09 €/Kg

Polymer

PBT polybutylene terephthalate

ULTRADUR B 4546

2000 Kg 1.09 €/Kg

Polymer

PBT polybutylene terephthalate

Ultradur B 6550

22000 Kg 1.15 €/Kg

Polymer

PBT polybutylene terephthalate

Ultradur B 4500

22000 Kg 1.15 €/Kg

Polymer

PBT polybutylene terephthalate

PBT BLACK RESIN

17000 Kg 0.75 €/Kg

Polymer

PBT polybutylene terephthalate

10000 Kg 0.39 €/Kg

Polymer

PBT polybutylene terephthalate

Tecodur PB50 NL

2200 Kg 1.70 €/Kg

Polymer

PBT polybutylene terephthalate

ULTRADUR B 1520 FC

20000 Kg 0.35 €/Kg

Polymer

PBT polybutylene terephthalate

Crastin FGS600F40 NC010

20000 Kg 0.40 €/Kg