| 摘要 |
<p>A multi-layered structure comprising a first polyolefin layer and a second polyketone layer, the first and second layers being bonded together with an intermediate layer of an adhesive composition comprising a graft copolymer having a polyolefin backbone grafted with a polyamide. The polyolefin backbone of the polyamide graft copolymer may itself be a graft copolymer of a polyolefin and a polymerisable ethylenically unsaturated carboxylic acid or derivative thereof.</p> |
