Hot melt adhesive based on blends of epr and/or epdm and...

C - Chemistry – Metallurgy – 09 – J

Patent

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Details

C09J 109/00 (2006.01) C08K 5/01 (2006.01) C08K 5/134 (2006.01) C08L 9/00 (2006.01) C09J 7/04 (2006.01) C09J 113/00 (2006.01) C09J 123/02 (2006.01) C09J 123/16 (2006.01) C09J 123/26 (2006.01) C08L 23/04 (2006.01) C08L 23/08 (2006.01) C08L 23/10 (2006.01)

Patent

CA 2393173

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.

Cette invention concerne une composition adhésive thermo-fusible à usages divers, en particulier dans la construction et pour les fixations élastiques d'articles jetables en non tissé. Cette composition comprend un polymère de caoutchouc élastomère ou un mélange de polymères de caoutchouc élastomère avec un polymère oléfinique semicristallin ou un mélange de polymères oléfiniques semicristallins, un agent gluant à base de résine, un plastifiant et un agent de stabilisation. Le polymère de caoutchouc élastomérique est de préférence un copolymère de caoutchouc éthylène-propylène (EPR) et/ou un terpolymère de caoutchouc de d'éthylène-propylène diène (EPDM). Cette composition adhésive thermofusible peut s'appliquer au moyen de techniques classiques du type extrusion ou vaporisation.

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