Patent · US Active

Multi-layer opaque films, articles including such films, and uses thereof

US8815377B2 · kind B2 · utility

0Cited by
1References
11Claims
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Key dates

Filing dateNov 24, 2010
Grant dateAug 26, 2014
Priority date
Expiry dateJan 1, 2031

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T428/24992
  • WIPO fieldSurface technology, coating
  • WIPO sectorChemistry

Abstract

A multi-layer film including a cavitated core layer, two skin layers and at least one tie layer between the core layer and one of the skin layers, said tie layer including from about 1 to about 25 wt % of a soft polymer having a density in the range of 0.850 g/cm3 to 0.920 g/cm3 and a Differential Scanning Calorimetry (DSC) melting point in the range of 40° C. to 125° C., said multi-layer film having a density between 0.50 to 0.85 g/cm3.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.