Laminate of heat sealable polyolefin and cured polyolefin...

Details Laminate of heat sealable polyolefin and cured polyolefin... Laminate of heat sealable polyolefin and cured polyolefin...

B - Operations, Transporting

32

B

B32B 25/10 (2006.01) B32B 27/32 (2006.01)

Patent

CA 2124453

2124453 9311936 PCTABS00022 A laminate formed by heat fusing a heat sealable polyolefin sheet to two cured polyolefin sheets to produce a water impermeable seal between the cured polyolefin sheets. The heat sealable polyolefin sheet is preferably bonded to a porous heat resistant backing on one surface and the other surface is heat fused to the cured polyolefin sheets. The cured polyolefin sheets may typically be in juxtaposed or overlapping arrangement. The porous backing may be in the form of a fibrous sheet. The heat sealable polyolefin sheet is preferably low density polyethylene and the cured polyolefin sheets are typically cured EPDM rubber.

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