Adhesive blends and multi-layered structures comprising the adhesive blends.

摘要

A polyolefin-containing adhesive blend comprising (A) 2 to 30 parts by weight of a graft copolymer of a polypropylene backbone grafted with 0.001 to 30% by weight of at least one polymerisable ethylenically unsaturated carboxylic acid or derivative thereof, (B) 10 to 50 parts by weight of a very low density polyethylene and (C) 20 to 80 parts by weight of a polypropylene, the sum of (A), (B) and (C)) being 100 parts by weight. The adhesive blend is suitable for bonding polypropylene to polar materials such as ethylene-vinyl alcohol copolymers and nylon. The invention includes multi-layer structures produced using the polyolefin-containing adhesive blend.