Elastic necked-bonded materials and methods of forming the same

Details Elastic necked-bonded materials and methods of forming the same Elastic necked-bonded materials and methods of forming the same

B - Operations, Transporting

32

B

B32B 5/04 (2006.01) D04H 13/00 (2006.01)

Patent

CA 2265451

A method of forming a stretchable composite by applying a polymeric precursor (26), such as a latex or thermoset elastomer, to a neckable material (12) either prior to or after neck-stretching the material, then treating the polymeric precursor (26) on the necked material to form a polymeric tie layer (27). An elastic sheet (32) is bonded to the tie layer and necked-stretched material thereby forming an elastic necked-bonded laminate (44).

Procédé de formation d'un composite étirable qui consiste à appliquer un précurseur polymère (26) tel qu'un latex ou un élastomère thermodurci sur une matière (12) étirable dans le sens machine soit avant soit après l'étirement de la matière dans le sens machine; puis à traiter le précurseur polymère (26) sur la matière étirée dans le sens machine pour former une couche (27) de jonction polymère. On colle une feuille élastique (32) sur la couche de jonction et la matière étirée dans le sens machine pour former ainsi un stratifié (44) élastique étiré dans le sens machine.

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