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Uniaxially oriented article having a structured surface

  • US 20060141220A1
  • Filed: 12/23/2004
  • Published: 06/29/2006
  • Est. Priority Date: 12/23/2004
  • Status: Abandoned Application
First Claim
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1. A uniaxially oriented structured surface article comprising:

  • (a) a polymeric body having (i) a first and a second surface, and (ii) first and second in-plane axes that are orthogonal with respect to each other and a third axis that is mutually orthogonal to the first and second in-plane axis in a thickness direction of the polymeric film; and

    (b) a surface portion comprising a linear geometric feature disposed on the first surface of the polymeric body, the linear geometric feature being disposed on the body in a direction substantially parallel to the first in-plane axis of the polymeric film;

    wherein the article has a stretch ratio of at least 1.5 in the direction of the first in-plane axis, and wherein the ratio of the larger to the smaller of the stretch ratios along the second in-plane axis and the third axis is 1.4 or less, and wherein the article has substantially the same uniaxial orientation throughout the thickness of the body and the height geometric feature.

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