DuPont Home

DuPont™ Surlyn® in Laminated Packaging

Application Description

Laminated packagingDuPont™ Surlyn® Relieves Pain of Delamination for Salonpas

Surlyn® resin is featured in this laminated packaging structure with inner foil lining.
Benefits Gained
  • Improved seal integrity.

  • Increased line speeds.

  • Elimination of foil corrosion problems.
Materials Used and Why
Originally, low density polyethylene (LDPE) was used in this package; however, the high levels of camphor and menthol –- the active ingredients that make Salonpas muscle pain reliever so effective –- were causing the packaging structure to delaminate and the foil to corrode.  Surlyn® was selected to replace the LDPE due to its exceptional seal integrity.  Surlyn® also allowed higher line speeds, a low sealing temperature and better hot tack.
End User:  Hitsamitsu Vietnam Pharmaceutical Co. Ltd. – Bien Hoa, Dong Nai Province, Vietnam

Because DuPont cannot anticipate or control the many different conditions under which this information and/or product may be used, it does not guarantee the applicability or the accuracy of this information or the suitability of its products in any given situation. Users of DuPont products should make their own tests to determine the suitability of each such product for their particular purposes. The data listed herein falls within the normal range of product properties but they should not be used to establish specification limits or used alone as the basis of design.

Disclosure of this information is not a license to operate or a recommendation to infringe a patent of DuPont or others.