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1. (WO2016062797) HOT MELT ADHESIVE FOR POLYOLEFIN FILMS

Pub. No.:    WO/2016/062797    International Application No.:    PCT/EP2015/074452
Publication Date: Fri Apr 29 01:59:59 CEST 2016 International Filing Date: Fri Oct 23 01:59:59 CEST 2015
IPC: C09J 123/02
C08L 23/02
C08L 23/20
Applicants: HENKEL AG & CO. KGAA
Inventors: HERLFTERKAMP, Bernhard
PÜRKNER, Eckhard
SWAIN, Andy
KLINGBERG, Wolfgang
HÜBENTHAL, Marcel
ECKERS, Mario
STRENGER, Stefan
THOMAS, Julia
KLEWE, Oliver
MILLS, Kevin
CASPERS, Alexander
SCHRÖTTLE, Michael
EASDOWN, George
Title: HOT MELT ADHESIVE FOR POLYOLEFIN FILMS
Abstract:
The invention relates to a hot melt adhesive, containing a) 25 to 95 wt.%, preferably 50 to 85 wt.% of at least one polyolefin polymer; b) 1 to 75 wt.%, preferably 1 to 40 wt.% of at least one tackifier resin; c) 0 to 15 wt.% of at least one plasticizer; and d) 0 to 30 wt.% of at least one additive and/or additional ingredient selected from stabilizers, adhesion promoters, fillers or pigments, waxes and/or other polymers, or combinations thereof, characterized in that the at least one polyolefin polymer is a mixture of: a1) at least one first polyolefin polymer having a molecular weight Mn of < 10,000 g/mol in an amount of 20 to 80 wt.% with respect to the total amount of polyolefin polymer, and a2) at least one second polyolefin polymer having a molecular weight Mn of > 10,000 g/mol in an amount of 20 to 80 wt.% with respect to the total amount of polyolefin polymer. The use thereof is for bonding film-like substrates, in particular polyolefin films and woven or non-woven fabrics. The invention further relates to a specific method for producing packaging using the hot melt adhesive according to the present invention, and packaging resulting from the method.