Patent ID: 8865824

Claim:
A hot melt adhesive composition consisting essentially of: (i) about 90 to 10 wt. % of an amorphous polyolefin copolymer composition comprising 50 to 70 wt. % 1-butene; (ii) about 10 to 90 wt. % of a heterophase polypropylene copolymer composition comprising propene and a comonomer comprising ethylene, 1-hexene or 1-octene and comprising amorphous blocks and crystalline blocks; and (iii) about 0.1 to 30 wt. % of a polyisobutylene plasticizer made with an AlCl 3 ; wherein the adhesive provides cohesive strength from the heterophase polyolefin copolymer and adhesive strength from the amorphous polypropylene copolymer.