Polyplastics Co., Ltd.

18-1 JR Shinagawa East Building, Konan 2 chome, Minato-ku, 108-8280 Tokyo
Telephone +81 3 67118614
Fax +81 3 67118606

This company is main exhibitor of


Hall map

K 2016 hall map (Hall 7a): stand B02

Fairground map

K 2016 fairground map: Hall 7a

Our range of products

Product categories

  • 01  Raw materials, auxiliaries
  • 01.01  Thermoplastics
  • 01.01.001  Acetal homo and copolymers (POM)
  • 01  Raw materials, auxiliaries
  • 01.01  Thermoplastics
  • 01.01.020  Cycloolefine Polymers

Cycloolefine Polymers

  • 01  Raw materials, auxiliaries
  • 01.01  Thermoplastics
  • 01.01.022  Self-reinforcing plastics (LCP=liquid crystal polymers)

Self-reinforcing plastics (LCP=liquid crystal polymers)

  • 01  Raw materials, auxiliaries
  • 01.01  Thermoplastics
  • 01.01.064  Polybutylene terephthalate (PBT)

Polybutylene terephthalate (PBT)

  • 01  Raw materials, auxiliaries
  • 01.01  Thermoplastics
  • 01.01.092  Polyphenylene sulfide (PPS)

Polyphenylene sulfide (PPS)

Our products

Product category: Acetal homo and copolymers (POM)

DURACON® POM, Co-polymer

The thermal stability of the copolymer is superior to that of the homopolymer.

1) Accordingly, color changes and gas emissions during molding are lower because degradation is smaller, and a wider temperature window can be adopted for molding.

2) Resistance to hot water, alkalis and oils at elevated temperatures is excellent.


The chemical structure of the copolymer results in a slightly lower crystallization rate compared with the homopolymer.

1) Accordingly, while strength and stiffness are somewhat lower, flexibility is excellent.

2) In addition, while the melting point and heat deflection temperature are approximately 10 deg C lower, there is no difference in the practical heat resistance temperature.

*"DURACON ® " is a registered trademark of Polyplastics Co., Ltd. in Japan and other countries.

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Product category: Acetal homo and copolymers (POM)

Liquid Crystal Polymer

*LCP sales are currently limited to the Asia Pacific region.

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Product category: Acetal homo and copolymers (POM)


PBT possesses a high melting point and high crystallinity, while low water absorption and thermal expansion coefficient give the resin superior dimensional stability. Electrical properties are also superior, and only small changes in electrical properties are exhibited as a result of moisture absorption. Dielectric breakdown voltage is also high.


Both crystalline and non-crystalline structures coexist in PBT. As a result, additives can be readily employed to improve properties and render functionality. The grade line up includes a variety of grades possessing various features, such as flame retardant grades, fast molding cycle grades, and high impact strength grades.


PBT is adopted in a wide variety of familiar products used in every day life, such electrical components (connectors, microswitches, and condenser cases, etc.), auto parts (connectors for wire harness, microswitches, relays, and sensors, etc.), OA equipments, medical devices, construction materials, and precision equipment.

*"DURANEX ® " is a registered trademark of Polyplastics Co., Ltd. in Japan and other countries and is used by WinTech Polymer Ltd. under license.

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Product category: Acetal homo and copolymers (POM)


Mechanical strength is exceedingly high, with flexural strength in particular exhibiting a high value, Excellent elastic recovery is also possessed.

Possesses high toughness, while high values are also exhibited for compression and shear characteristics

Possesses superior creep characteristics even under high temperatures and loads. In addition, possesses superior fatigue resistance to repetitive stresses.   

Elongation and impact strength are high, and brittleness, a major drawback of traditional PPS, has been improved significantly.

Can withstand immersion in 260°C solder bath for 10s, making the resin more than able to cope with electronic component surface mount technologies.

Ionic impurities are low, and application is possible in applications where strict electrical properties are demanded.

Little change in volume resistivity is shown over time, and there is almost no change in dielectric constant due to frequency or temperature. These characteristics make it an excellent insulative material.

Weld strength is high, and superior secondary processability (screws, insertion, etc.) is exhibited.

*"DURAFIDE ® " is a registered trademark of Polyplastics Co., Ltd. in Japan and other countries.

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Product category: Acetal homo and copolymers (POM)

Product information

"We create value together!"
Polyplastics' highly-reliable engineering plastics products;

DURACON (R) Acetal copolymer(POM)
DURANEX (R) Polybutylene terephthalate(PBT)
DURAFIDE (R) Polyphenylene sulfide(PPS)
LAPEROS (TM) Liquid crystal polymer(LCP)
TOPAS (R) Cyclic olefin copolymer(COC)

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About us

Company details

"We're the world's largest POM manufacturer!"

Polyplastics is a specialized manufacturer and marketer of engineering plastics and the first company in Japan to manufacture POM.

We are now proudly providing our advanced plastics products and technical solutions in Europe and the Americas.

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