HOT MELT ADHESIVE COMPOSITION INCLUDING CRYSTALLINE BLOCK COMPOSITE

摘要

A hot melt adhesive composition includes (A) 20-95 wt％ of a polymer component including an ethylene-based polymer and a propylene based polymer, the ethylene-based polymer being present in an amount greater than 30 wt％, based on a total weight of the polymer component, and (B) 1-60 wt％ of a crystalline block composite comprising (1) a crystalline ethylene based polymer, (2) a crystalline alpha-olefin based polymer derived from at least one of a C3-10 α olefin, and (3) a block copolymer comprising 10-90 wt％ of a crystalline ethylene block comprising 90 or more wt％ units derived from ethylene and comprising 10-90 wt％ of a crystalline alpha-olefin block comprising 90 or more wt％ units derived from at least one of a C3-10 α olefin, (C) Optionally, from greater than zero to 70 wt％ tackifier, and (D) Optionally, from greater than zero to 40 wt％ of at least one selected from the group of a wax and an oil.