Heat resistant breathable films

B - Operations – Transporting – 32 – B

Patent

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18/1020, 154/140

B32B 27/08 (2006.01) A41D 31/00 (2006.01) B32B 3/10 (2006.01) B32B 7/12 (2006.01) C08J 3/28 (2006.01)

Patent

CA 1324476

ABSTRACT OF THE DISCLOSURE A multilayer laminate comprises a first perforated film of propylene homopolymer or copolymer, oriented heat set polyester or oriented heat set polyamide and a second film bonded to the first film and including a bonding layer of ethylene vinyl acetate copolymer or chemically modified ethylene unsaturated ester copolymer, a core layer of a heat resistant, breathable polymeric material, and an outer heat sealable layer. One or more filler layers may be included in the structure, located between the outer heat sealable layer and a polymeric adhesive layer.

610036

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