PACKAGING MATERIALS AND STRUCTURES FOR COMPOSITIONS INCLUDING AN EXOTHERMIC AGENT AND A VOLATILE AGENT

摘要

Packaging materials and structures for compositions including an exothermic agent and a volatile agent are described. The package material includes a polymeric sealing layer which includes a non-ionic polymer or a polymer comprising ionic groups fewer than 10 percent of which (e.g., fewer than 1% of which) have been neutralized. The volatile agent can be an agent that emits a fragrance or aroma such as menthol, eucalyptus and/or camphor vapors. The composition can also include an effervescent agent. The package structures are resistant to discoloration caused by interaction with the product. The package structures also have high moisture barrier properties and can be formed and sealed at high speed.