An absorbent article which includes a phase change material capable of adding or removing heat to or from at least a portion of the absorbent article to perform a useful function on the article. The phase change material may be activated by an action of the wearer or caregiver or by environmental conditions...http://www.google.fr/patents/US6989471?utm_source=gb-gplus-shareBrevet US6989471 - Absorbent article with phase change material
