Method of making laminate structures for mechanical activation

Details Method of making laminate structures for mechanical activation Method of making laminate structures for mechanical activation

B - Operations, Transporting

32

B

B32B 37/14 (2006.01) A61F 13/15 (2006.01)

Patent

CA 2643230

A method for producing a stretch laminate includes forming an intermediate stretch laminate. Forming the intermediate stretch laminate includes providing a first substrate and attaching an elastic film to a surface of the first substrate via an adhesive. The first substrate and the elastic film are in a face to face orientation. The intermediate stretch laminate has a residual energy of greater than or equal to 50% at a predetermined applied strain. The method of forming the stretch laminate further includes mechanically activating the intermediate stretch laminate at a strain rate of at least 100s-1.

La présente invention concerne un procédé de production d'un stratifié extensible consistant à former un stratifié extensible intermédiaire. Le procédé de formation du stratifié extensible intermédiaire consiste à utiliser un premier substrat et à fixer un film élastique sur une surface du premier substrat à l'aide d'un adhésif. Le premier substrat et le film élastique sont disposés face à face. Le stratifié extensible intermédiaire présente une énergie résiduelle égale ou supérieure à 50% pour une déformation appliquée prédéterminée. Le procédé de formation du stratifié extensible consiste ensuite à activer mécaniquement le stratifié extensible intermédiaire à une vitesse de déformation d'au moins 100s-1.

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