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US 5,955,161 AGranted
Blood collection tube assembly
AssigneeBecton, Dickinson and Company
InventorYelena G. Tropsha
Life of this patent
Estimating the term…
Abstract
The present invention is a plastic container coated with a multi-layer barrier coating. The multi-layer barrier coating is useful for providing an effective barrier against gas permeability in containers and for extending shelf-life of containers, especially plastic evacuated blood collection devices.
Claims24
A sample assembly comprising:
- a plastic container having an open end, a closed end, an inner surface and an outer surface;
- and
- a multi-layer barrier coating associated over the outer surface of said container and extending over a major portion of said outer surface of said container, said coating having a first layer comprising an organic primer coating material, and a second layer on said first layer comprising a sequence of inorganic and organic coatings.
A multi-layer barrier coating comprising:
- a first layer comprising an acrylate material;
- a second layer on said first layer comprising a sequence of inorganic and organic coatings;
- and a third layer on said second layer comprising an organic material.
Dependencies are inferred from the claim text.