Floatable opaque uniaxial shrink film containing polyolefin and silica gel voiding agent
AssigneeTaghleef Industries Inc.
InventorsAndrew Wilkie, Anthony Denicola, Eric Propst
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Abstract
Disclosed is multilayer film having a plurality of layers including a thickest layer containing 1 to 25 wt. % of a silica gel having an average particle size of 1 to 10 microns, and at least 50 wt. % of at least one polyolefin, wherein: (a) the thickest layer is voided by the silica gel; (b) the multilayer film is a uniaxially oriented film having an opacity greater than 10, and a density of less than 1 g/cc; and (c) the multilayer film has a shrinkage of at least 20% in a machine direction or a transverse direction of formation when heated to a temperature of 80° C.-100° C. A label and a flexible package composed of the film are also disclosed.
Claims20
A multilayer film comprising a plurality of layers including a thickest layer comprising 1 to 25 wt. % of a silica gel having an average particle size of 1 to 10 microns, and at least 50 wt. % of at least one polyolefin, wherein:
- (a) the thickest layer is voided by the silica gel;
- (b) the multilayer film is a uniaxially oriented film having an opacity greater than 10, and a density of less than 1 g/cc;
- and (c) the multilayer film has a shrinkage of at least 20% in a machine direction or a transverse direction of formation when heated to a temperature of 80° C.-100° C.
Dependencies are inferred from the claim text.