B - Operations – Transporting – 32 – B
Patent
B - Operations, Transporting
32
B
154/71, 154/126.
B32B 15/08 (2006.01) C09J 5/06 (2006.01)
Patent
CA 1106269
ABSTRACT OF THE DISCLOSURE When a polyolefin layer is bonded to a metal sub- strate through a primer layer, if a polar group-containing eythylenically unsaturated monomer-modified olefin resin (A) having a specific polar group concentration and a specific degree of crystallinity and a coating film- forming base resin (B) are incorporated at a specific ratio into a specific mixed solvent to form a paint and the primer layer is formed by using this paint, there is obtained a novel multi-layer distribution structure compris- ing the base resin distributed predominantly in the portion of the primer layer contiguous to the surface of the metal substrate and the modified olefin resin distri- buted predominantly in the portion of the primer layer contiguous to the polyolefin layer and having a concentra- tion gradient of the two components (A) and (B) in the thickness direction. By virtue of the presence of this primer layer, the bonding strength between the metal substrate and the polyolefin and the corrosion resistance of the metal substrate as well as the processability of the polyolefin-metal bonded structure are substantially improved.
315902
Ichinose Isao
Kunimoto Go
Mori Fumio
Osler Hoskin & Harcourt Llp
Toyo Seikan Kaisha Ltd.
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