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Method of making uniaxially oriented articles having structured surfaces

  • US 20060138702A1
  • 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 method of making an oriented, structured surface polymeric film, comprising the steps of:

  • (a) providing a polymeric film having (i) a first structured surface 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, wherein the first structured surface has a geometric feature disposed thereon in a direction substantially parallel to the first in-plane axis; and

    subsequently (b) uniaxially orienting the polymeric film in a direction substantially parallel to the first in-plane axis of the polymeric film.

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