Protective coating for metal surfaces containing a...

Details Protective coating for metal surfaces containing a... Protective coating for metal surfaces containing a...

B - Operations, Transporting

32

B

B32B 27/32 (2006.01) B32B 15/08 (2006.01) B32B 15/18 (2006.01) B32B 27/08 (2006.01)

Patent

CA 2433239

Structures of the present invention contain a non-oriented multilayer film with a polyolefin core having 40 weight-percent or less homogeneous ethylene/alpha-olefin, a modified polyolefin tie layer on each side of the core, and an adhesive layer on at least one tie layer. The adhesive layer contains a polar-modified polyolefin and a polyester, copolyester, or polyester/copolyester blend. The multilayer film has utility as a protective coating for metal surfaces.

Des structures de la présente invention contiennent un film multicouche non orienté avec un noyau en polyoléfine contenant tout au plus 40 % d'éthylène/alpha-oléfine homogène, une couche de jonction en polyoléfine modifiée sur chaque côté du noyau, et une couche adhésive sur au moins une couche de jonction. La couche adhésive renferme une polyoléfine modifiée sur le plan polaire et un polyester, un copolyester ou un mélange de polyester/copolyester. Le film multicouche est utile en tant que revêtement protecteur pour surfaces métalliques.

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