Hot melt adhesive based on ethylene-propylene rubber (EPR) and semicrystalline olefinic polymers
AssigneeAto Findley, Inc.
InventorsBaoyu Wang, Malcolm R. Luebkert, III
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Abstract
An elastomeric-based hot melt adhesive composition having a variety of end uses, particularly in construction and elastic attachment applications on nonwoven disposable articles. The composition includes an elastomeric rubber polymer or a mixture of elastomeric rubber polymers together with a semicrystalline olefinic polymer or a mixture of semicrystalline olefinic polymers, a tackifier resin, a plasticizer, a wax and a stabilizer. The preferred elastomeric rubber polymer is an ethylene-propylene rubber copolymer (EPR) and/or an ethylene-propylene diene monomer rubber terpolymer (EPDM). The hot melt adhesive composition can be applied using common application techniques such as extruding or spraying.
Claims12
A hot melt adhesive composition, consisting essentially of a blend of the following components:
- (a) about 5% to about 65% by weight of an elastomeric rubber or a blend of elastomeric rubbers selected from the group consisting of ethylene-propylene rubber and ethylene-propylene-diene monomer terpolymer rubber;
- (b) about 8% to about 40% by weight of a semi-crystalline olefinic polymer or a blend of semicrystalline olefinic polymers;
- (c) about 15% to about 75% by weight of a tackifying resin;
- (d) about 5% to about 30% by weight of a plasticizer;
- (e) about 0% to about 30% by weight of a wax;
- and
- (f) about 0.1% to about 2% by weight of a stabilizer;
- wherein the components comprise 100% by weight of the composition.
Dependencies are inferred from the claim text.