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US 4,069,185 AGranted
Anticoagulant coating composition
AssigneeCorning Glass Works
InventorKevin J. Sullivan
Life of this patent
Estimating the term…
Abstract
An anticoagulant coating composition suitable for coating the interior surfaces of a blood microsample collection tube, such as a capillary tube, is disclosed. The coating composition consists essentially of ethylene diamine tetracetate held in a matrix of polyvinyl pyrrolidone. Both the ethylene diamine tetracetate and the polyvinyl pyrrolidone are dissolved in a water-alcohol mixture to form a coating composition solution.
Claims6
An anticoagulant coating solution comprising a solvent and a filler, said filler consisting essentially of
- from about 10 percent to about 95 percent by weight of a salt of ethylene diamine tetracetate, and
- from about 5 percent to about 90 percent by weight of polyvinyl pyrrolidone.
An anticoagulant coating consisting essentially of
- from about 10 percent to about 95 percent by weight of a salt of ethylene diamine tetracetate, and
- from about 5 percent to about 90 percent by weight of polyvinyl pyrrolidone.
Dependencies are inferred from the claim text.