PSA CONTAINING OLEFIN BLOCK COPOLYMERS AND STYRENE BLOCK COPOLYMER

The invention relates to a storage-stable hot-melt adhesive containing 15 to 70 wt% of a mixture of at least one copolymer based on ethylene and/or propylene and at least one C4 to C20 α-olefin, which can be obtained as a block copolymer by metallocene-catalyzed polymerization, and at least one sty...

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Bibliographische Detailangaben
Hauptverfasser: ECKHARD PÜRKNER, ANNIE SEILER
Format: Patent
Sprache:eng ; spa
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Zusammenfassung:The invention relates to a storage-stable hot-melt adhesive containing 15 to 70 wt% of a mixture of at least one copolymer based on ethylene and/or propylene and at least one C4 to C20 α-olefin, which can be obtained as a block copolymer by metallocene-catalyzed polymerization, and at least one styrene block copolymer, 10 to 70 wt% of at least one tackifying resin, and 0 to 40 wt% of additional additives, wherein the sum of the % shares should equal 100% and the tackifying resin is completely or partially a soft resin. La invención se refiere a un adhesivo termofusible estable en almacenamiento que contiene 15 a 70% en peso de una mezcla de al menos un copolímero a base de etileno y/o propileno y al menos una a-olefina con C4 a C20 que es obtenible como un copolímero en bloque mediante polimerización catalizada con metaloceno, y al menos un copolímero en bloque de estireno, 10 a 70% en peso de al menos una resina adherente, 0 a 40% en peso de aditivos adicionales, en donde el total de los porcentajes deberá sumar hasta 100% y la resina adherente es por completo o en parte una resina blanda.