Transparent shrink film made from biaxially oriented polypropylene
AssigneeHoechst Aktiengesellschaft
InventorsHerbert Peiffer, Ursula Murschall, Gunter Schloegl
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Abstract
A transparent shrink film made from propylene useful for all-round labeling of essentially cylindrical containers, such as bottles, comprises a propylene polymer and has, at 100.degree. C., a shrinkage in the longitudinal direction of at least 10% and a shrinkage in the transverse direction of less than 2%. A process for producing the film is also provided.
Claims22
A film comprising a propylene polymer, wherein said film has at 100.degree. C. a shrinkage in the longitudinal direction of at least about 10% and a shrinkage in the transverse direction of less than about 2%.
A film as claimed in claim which contains the propylene polymer in an amount of from 60 to 95% by weight of the film.
A film as claimed in claim additionally comprising outer layers on both sides of said film, independently comprised of a propylene homopolymer or ethylene-propylene copolymer, the outer layers may contain up to 40 % by weight of the individual outer layer of a low molecular weight resin.
Dependencies are inferred from the claim text.