Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Cryovac LLC
Original Assignee
WR Grace and Co Conn
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by WR Grace and Co ConnfiledCriticalWR Grace and Co Conn
Publication of CA2030328A1publicationCriticalpatent/CA2030328A1/en
Application grantedgrantedCritical
Publication of CA2030328CpublicationCriticalpatent/CA2030328C/en
A plurality of corona-treated polymeric films, and metal foils or sheets, are alternately arranged and laminated together to form a laminate suitable for e.g. insulating panels. Construction of this absolute or near-absolute barrier can be simultaneous or sequential. The metal foils may be of the same type, or may differ. Aluminum and steel are preferred metal foils. At sufficient thicknesses, the sheet can be stamped or shaped. Both outermost surfaces of the laminate can comprise polymeric film, or both surfaces can comprise metal foils. Alternatively, one outer surface can be a polymeric film and the other outer surface can be a metal foil.
CA 20303281989-12-081990-11-20Plastic film metal foil multi-laminates
Expired - Fee RelatedCA2030328C
(en)
Printing resin film for laminating high-sharpness decorative laminated sheet excellent in workability and high-sharpness decorative laminated sheet laminated with the resin films