Metallizable, twist wrap, biaxially oriented, polypropylene film
AssigneeHoechst Aktiengesellschaft
InventorsHerbert Peiffer, Ursula Murschall, Gunter Schloegl
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Abstract
A polypropylene multilayer, coextruded, transparent, and metallizable film which has isotropic mechanical properties and contains a low-molecular-weight hydrocarbon resin and an antistatic agent in the base layer and an antiblocking agent in the outer layer is described. The film is free from lubricants in the outer layers. The invention furthermore relates to a process for the production of such films and to their use as, for example, packaging films or twist wrapping.
Claims28
A metallizable, biaxially oriented, transparent, multilayer film comprising:
- a) a base layer consisting essentially of polypropylene, an antistatic agent, and a low-molecular weight hydrocarbon resin having a softening point of about 130.degree. to about 180.degree. C., and
- b) an additional layer comprising polypropylene and an antiblocking agent, wherein said additional layer does not contain lubricants.
A metallizable, biaxially oriented, transparent multilayer film useful for twist wrapping consisting essentially of a
- a) a base layer consisting essentially of polypropylene, an antistatic agent, and a low-molecular weight hydrocarbon resin having a softening point of about 130.degree. to about 180.degree. C., and
- b) provided on both sides of said base layer, as outer layers of said multilayer film, a layer comprising polypropylene and an antiblocking agent, wherein both of said outer layers comprise substantially no lubricants.
Dependencies are inferred from the claim text.