Polyethylene naphthalate resin (PEN resin)

What is Teonex

Polyethylene-naphthalate (PEN) resin has become popular in various fields, since U.S. company Amoco Chemicals started commercial production of naphthalenedicarboxylic acid (NDC) , a raw material of PEN, in 1995. In 1964, 31 years before that, Teijin started development of PEN and commercialized as Teonex. Since then, Teonex has been popular as a functional material for industrial parts and wrapping materials for food and drug, and still steadily increasing the area of application. Teonex is crystalline thermoplastic polyester, a polycondensate of NDC as an acid component and ethylene glycol as a glycol component, manufactured in a process similar to that of polyethylene terephthalate (PET), typical polyester. The property of Teonex is, however, considered superior to that of PET. Teonex is crystalline resin, but slow in crystallization; therefore, it becomes easier for you to shape transparent molded products. Compared with polycarbonate (PC) resin, a typical resin used in transparent molded product, Teonex has superior chemical and scratch resistance; therefore, it enables manufacturing of higher quality product.

<Special features of TEONEX>

?쟄igh degree of transparency.
??50??of thermal resistance, compared with PET.
?줙igher hydrolysis resistance and longer life than PET.
?쥹igher chemical resistance than PET and PC.
?짲ow level of outgassing and adsorption of organic materials, which reduce concern for contamination.
?쩇bsorb the ultraviolet radiation竊늱p to 383nm竊뎎nd protect the contents inside.

Examples of application field

  • Returnable bottle
  • Cosmetic container
  • Plateware
  • Medical product container
  • Blending material for improving PET performance (moisture barrier, gas barrier, heat resistance, UV ray absorption, etc.)
  • Components that requires transparency, heat resistance, or chemical resistance