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US 2012/0071575 A1Published application
Microporous Thermoplastic Article
OwnerMichael Edward DeRosa, Mircea Despainventors
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Abstract
Surfaces of thermoplastic articles are rendered microporous by contacting the surface with a composition that includes a solvent. The article has a birefringence of 0.0001 or greater and the composition has a solvent strength configured to swell but not dissolve the polymer.
Claims20
A method for fabricating a microporous surface on a polystyrene article, comprising:
- providing a polystyrene article having a birefringence of 0.0001 or greater;
- contacting a surface of the article with a composition comprising a solvent for the polystyrene, wherein the composition is configured to cause swelling of the polystyrene article without dissolving the polystyrene article;
- and
- removing the composition from the polystyrene article.
1 more element
A method for fabricating a microporous surface on a cyclic olefin copolymer article, comprising:
- providing a cyclic olefin copolymer article having a birefringence of 0.0001 or greater;
- contacting a surface of the article with a composition comprising a solvent for the cyclic olefin copolymer, wherein the composition is configured to cause swelling of the cyclic olefin copolymer article without dissolving the cyclic olefin copolymer article;
- and
- removing the composition from the cyclic olefin copolymer article.
1 more element
Dependencies are inferred from the claim text.