04329395 is referenced by 7 patents and cites 7 patents.

Heat-bondable laminates of polyester (2) bonded to one surface of a metal (aluminium) foil (3) the other surface of which is bonded to a polyolefin heat-bondable layer (4). Laminates of this type are used to make food containers (1) to replace metal cans which are sterilized at 125.degree. C. The heat-bondable layer used hitherto has been high density polyethylene which has a melting point too close to 125.degree. C. and gives only barely adequate tear strength and impact resistance. The laminates of this invention use instead of the polyethylene, a sequential copolymer of propylene with 12 to 30% by weight ethylene and containers made from them achieve better tear strengths and impact resistances and can be sterilized at temperatures as high as 140.degree. C.

Title
Heat-bondable laminates of polyester and metal foil and containers made from them
Application Number
94192
Publication Number
4329395
Application Date
May 21, 1980
Publication Date
May 11, 1982
Inventor
Nigel E Pickford
Welwyn
GB
Agent
Cushman Darby & Cushman
Assignee
Imperial Chemical
GB
IPC
B32B 15/08
B32B 15/00
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