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Crosslinked polyimide membrane, method for making the same using organic titanate catalysts to facilitate crosslinking and method of using the membrane for fluid separation

  • US 8,221,531 B2
  • Filed: 12/31/2007
  • Issued: 07/17/2012
  • Est. Priority Date: 12/31/2007
  • Status: Expired due to Fees
First Claim
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1. A crosslinked polyimide membrane comprising:

  • a polyimide membrane for gas separation having crosslinked chains of polyimides which contain organic titanate, wherein the organic titanate is present at less than 50 parts per million by weight of the membrane.

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