Patent ID: 11590744

Abstract:
Oriented, multilayer shrink films, either clear or opaque, comprise a core layer and at least one skin layer. The core layer has a thickness greater than the thickness of the at least one skin layer. The at least one skin layer comprises at least one cyclic-olefin copolymer as the predominant component thereof. The core layer comprises a blend of a polyolefin polymer and a polybutene-1 copolymer with ethylene, the butene-1 constituting over 75% by weight of the polybutene-1 copolymer. The film has a shrinkage of at least 20% in at least one of the machine and transverse directions of formation when said film is heated to a temperature of between 80 and 100° C. Optionally the films can include a propylene-based elastomer, a styrenic based block copolymer elastomer, reclaim including the components of the film, or combinations thereof.