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Medical devices containing oriented films of poly-4-hydroxybutyrate and copolymers

  • US 8,753,555 B2
  • Filed: 04/11/2011
  • Issued: 06/17/2014
  • Est. Priority Date: 12/01/2006
  • Status: Active Grant
First Claim
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1. A non-porous film of an oriented poly-4-hydroxybutyrate polymer or a copolymer thereof,wherein the film has an elongation at break from 10-500%, andwherein the film is derived by drying the polymer or copolymer to less than 0.01% (w/w) water, melt extruding the polymer or copolymer, then orienting the film by stretching the film by more than 25% of the film'"'"'s original length in one or more directions.

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