Hot-melt adhesive having improved bonding strength
AssigneeKimberly-Clark Worldwide, Inc.
InventorPeiguang Zhou
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Abstract
Hot-melt, pressure-sensitive adhesive compositions of amorphous polyalphaolefin and crystalline polypropylene have improved bond strength over the amorphous polyalphaolefin alone. The adhesive compositions improve dynamic shear strength, dynamic peel strength, as well as static peel strength. The adhesive compositions are particularly suitable for use in absorbent articles.
Claims15
A pressure sensitive hot melt adhesive comprising from about 70% to about 90% amorphous polyalphaolefin and from about 10% to about 30% crystalline polypropylene having a degree of crystallinity of at least about 40%, said amorphous polyalphaolefin comprising a butene-1 terpolymer with ethylene and propylene.
Dependencies are inferred from the claim text.