Use of polyolefin waxes in hot melts

摘要

Hot fusion mass comprises 0.1-40 wt.% of isotactic homo- and/or co-polymer waxes from the monomers ethylene, propylene and/or linear or branched alpha 4-20C olefins, and at least 60 wt.% of amorphous, atactic poly-alpha-olefins (APAOs). The copolymer waxes contain 0.1-30 wt.% of structural units from the monomer, and 70-99.9 wt.% of structural units from the other monomers. The homo- and co-polymer waxes possess an average molecular weight of = 40000 g/mol and a fusion viscosity of 20-40000 mPa. Hot fusion mass comprises 0.1-40 wt.% of isotactic homo- and/or co-polymer waxes from the monomers ethylene, propylene and/or linear or branched alpha 4-20C olefins, and at least 60 wt.% of amorphous, atactic poly-alpha-olefins (APAOs). The copolymer waxes contain 0.1-30 wt.% of structural units from the monomer, and 70-99.9 wt.% of structural units from the other monomers. The homo- and co-polymer waxes have a weight average molecular weight of = 40000 g/mol, are obtained by polymerization of the metallocene catalysis, have a ring and ball dripping or softening point of 80-165[deg]C, a fusion viscosity of 20-40000 mPa, measured at a temperature of 170[deg]C and exhibit a glass transition temperature of maximum of -20[deg]C.