×

Trilayer coated pharmaceutical packaging

  • US 9,554,968 B2
  • Filed: 03/11/2014
  • Issued: 01/31/2017
  • Est. Priority Date: 03/11/2013
  • Status: Active Grant
First Claim
Patent Images

1. A vessel having a lumen defined at least in part by a wall, the wall having an interior surface facing the lumen, an outer surface, and a coating set on the interior surface comprising a tie coating or layer, a barrier coating or layer, and a pH protective coating or layer;

  • the tie coating or layer comprising SiOxCy or SiNxCy wherein x is from about 0.5 to about 2.4 and y is from about 0.6 to about 3, the tie coating or layer having an interior surface facing the lumen and an outer surface facing the wall interior surface;

    the barrier coating or layer being from 2 to 1000 nm thick and comprising SiOx, wherein x is from 1.5 to 2.9, the barrier coating or layer of SiOx having an interior surface facing the lumen and an outer surface facing the interior surface of the tie coating or layer, the barrier coating or layer being effective to reduce the ingress of atmospheric gas into the lumen compared to a vessel without a barrier coating or layer;

    the pH protective coating or layer comprising SiOxCy or SiNxCy wherein x is from about 0.5 to about 2.4 and y is from about 0.6 to about 3, the pH protective coating or layer having an interior surface facing the lumen and an outer surface facing the interior surface of the barrier coating or layer; and

    in the presence of a fluid composition having a pH between 5 and 9 contained in the lumen, the calculated shelf life of the vessel is more than six months at a storage temperature of 4°

    C.

View all claims
  • 7 Assignments
Timeline View
Assignment View
    ×
    ×