B - Operations – Transporting – 32 – B
Patent
B - Operations, Transporting
32
B
B32B 27/28 (2006.01) B29D 7/01 (2006.01) B32B 27/08 (2006.01) B32B 27/32 (2006.01) C08J 7/04 (2006.01) C09J 123/08 (2006.01)
Patent
CA 2287898
The invention relates to a heat-sealable composite film comprising A) a base layer of preferably biaxially stretched polypropylene; B) an adhesion- promoting layer of modified polyolefin on at least one side of base layer (A); C) an outer layer of a copolymer consisting of one or several olefins and carbon monoxide (polyketone) located on the adhesion-promoting layer(s) (B).
L'invention concerne un film composite thermosoudable comprenant: A) une couche de base en polypropylène étirée de préférence biaxialement; B) une couche d'accrochage en polyoléfine modifiée, située sur au moins une face de la couche de base A; C) une couche extérieure consistant en un copolymère comprenant une ou plusieurs oléfines et du monoxyde de carbone (polycétone), qui est située sur la(les) couche(s) d'accrochage B.
Brandt Rainer
Sperlich Bernd
Fetherstonhaugh & Co.
Wolff Walsrode Ag
LandOfFree
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