COMPOSIZIONE DA ESTRUSIONE PER FORMARE UN TELO NON TESSUTO DI ELASTOMERO ADESIVO SENSIBILE ALLA PRESSIONE E USO DI TALE COMPOSIZIONE DA ESTRUSIONE PER FORMARE TENI NON TESSUTI E LAMINATI INCOLLATO SOTTO TRAZIONE

An extrudable composition for forming nonwoven elastomeric material having pressure sensitive adhesive properties, nonwoven elastomeric sheet material (e.g., fibrous nonwoven webs) formed of such composition, stretch bonded laminates using such sheets, and methods of forming such sheets and such lam...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: JOHN S.KIEFFER, TONY J. WISNESKI
Format: Patent
Sprache:ita
Schlagworte:
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:An extrudable composition for forming nonwoven elastomeric material having pressure sensitive adhesive properties, nonwoven elastomeric sheet material (e.g., fibrous nonwoven webs) formed of such composition, stretch bonded laminates using such sheets, and methods of forming such sheets and such laminates, are disclosed. The composition includes an elastomeric polymer and a tackifying resin, and can also include a polyolefin. The nonwoven sheet material can be a meltblown nonwoven web. The laminate can be formed by tensioning the elastomeric sheet material and bonding a gatherable web (e.g., a spunbond polypropylene web) to the tensioned sheet material by application of pressure, the bonding being accomplished due to the adhesivity of the elastomeric sheet material and without application of heat for softening the sheet material and/or gatherable web.