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Microstructure-bearing composite plastic articles and method of making

  • US 5,175,030 A
  • Filed: 12/08/1989
  • Issued: 12/29/1992
  • Est. Priority Date: 02/10/1989
  • Status: Expired due to Term
First Claim
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1. A composite plastic article comprising a tough, flexible substrate, one face of which bears a microstructure of utilitarian discontinuites, which discontinuities have a depth of at least 0.025 mm to about 0.5 mm, said microstructure comprising a layer of a cured oligomeric resin having hard segments and soft segments, wherein the total thickness of the layer of cured resin is not more than 20% greater than the depth of the discontinuities.

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