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Multilayer materials

  • US 6,623,747 B1
  • Filed: 02/14/1996
  • Issued: 09/23/2003
  • Est. Priority Date: 09/14/1992
  • Status: Expired due to Fees
First Claim
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1. A composite materials having at least one wettable surface capable of holding a continuous layer of aqueous fluid therein, which material comprises:

  • (a) a bulk base material, and (b) a hydrophilic coating, wherein the hydrophilic coating consists of a carbohydrate directly and covalently attached to amino groups at the surface of the bulk base material, wherein said amino groups are either inherently (a priori) present in the base material or have been attached to the surface of the bulk base material by plasma surface treatment.

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