Barrier coating

• US 5,654,054 A
• Filed: 04/18/1995
• Issued: 08/05/1997
• Est. Priority Date: 12/18/1992
• Status: Expired due to Term

• Current Assignee: Becton, Dickinson & Co
• Original Assignee: Becton, Dickinson & Co
• Inventors: Antoon, Mitchell K., Clarke, Richard P., Tropsha, Yelena G.
• Primary Examiner(s): NOLD, CHARLES R
• Application Number:
  US08/423,172
• Time in Patent Office: 840 Days
• Field of Search: 428/35.7, 428/34.1, 428/34.4, 428/34.6, 428/36.7, 428/702, 206/524.2, 220/415, 220/456, 220/457, 604/226, 604/403, 128/771, 128/764, 422/102, 422/99, 422/58
• US Class Current: 428/36.6
• CPC Class Codes: A61B 5/15003 for venous or arterial blood
• CPC Class Codes: A61B 5/150351 Caps, stoppers or lids for sealing or closing a blood collection vessel or container, e.g. a test-tube or syringe barrel caps for bottles or containers in general B65D41/00
• CPC Class Codes: A61B 5/154 Devices using pre-evacuated means
• CPC Class Codes: B01L 3/5082 Test tubes per se
• CPC Class Codes: B65D 23/0821 consisting mainly of polymeric materials B65D23/0828 takes precedence
• CPC Class Codes: C08J 2323/12 Polypropene
• CPC Class Codes: C08J 2483/04 Polysiloxanes
• CPC Class Codes: C08J 7/0423 with at least one layer of inorganic material and at least one layer of a composition containing a polymer binder
• CPC Class Codes: C08J 7/046 Forming abrasion-resistant coatings; Forming surface-hardening coatings
• CPC Class Codes: C08J 7/048 Forming gas barrier coatings
• CPC Class Codes: Y10T 428/1317 Multilayer [continuous layer]
• CPC Class Codes: Y10T 428/1379 Contains vapor or gas barrier, polymer derived from vinyl chloride or vinylidene chloride, or polymer containing a vinyl alcohol unit
• CPC Class Codes: Y10T 428/1383 Vapor or gas barrier, polymer derived from vinyl chloride or vinylidene chloride, or polymer containing a vinyl alcohol unit is sandwiched between layers [continuous layer]

Abstract

The present invention is a plastic container coated with a barrier coating. The 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.

Claims

1. 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 applied to the outer surface of said container, said coating having a first layer applied to the outer surface of said container comprising a plasma-deposited inorganic material of aluminum oxide and a second layer applied to said first layer, comprising a parylene polymer or vinylidene chloride-acrylonitrile-methyl methacrylate-methyl acrylate-acrylic acid polymer.

2. The assembly of claim 1 wherein said second layer is a parylene polymer.

3. The assembly of claim 2 wherein said parylene polymer is parylene N, parylene C or parylene D.