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DuPont™ Surlyn®

DuPont™ Surlyn® Relieves Pain of Delamination for Salonpas

DuPont Surlyn® resin improved seal integrity

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Application Description

Hitsamitsu Vietnam Pharmaceutical Co. Ltd. of Bien Hoa, Dong Nai Province, Vietnam, manufactures Salonpass, a medicated muscle pain reliever for topical applications. But the high levels of camphor and menthol -- the active ingredients in Salonpas that make it so effective -- were causing the packaging structure to delaminate and the foil to corrode. Replacing the low density polyethylene in the package with DuPont Surlyn® resin improved seal integrity and protected the foil -- as well as allowing higher line speeds, a low sealing temperature and better hot tack.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.