Vessel of plastic having a barrier coating and a method of producing the vessel

• US 5,736,207 A
• Filed: 10/27/1995
• Issued: 04/07/1998
• Est. Priority Date: 10/27/1994
• Status: Expired due to Term

• Current Assignee: Schott AG (Carl-Zeiss-Stiftung)
• Original Assignee: Schott Glaswerke
• Inventors: Walther, Marten, Spallek, Michael, Heming, Martin, Zschaschler, Gudrun
• Primary Examiner(s): Dye, Rena
• Application Number:
  US08/549,180
• Time in Patent Office: 893 Days
• Field of Search: 428/35.7, 428/36.6, 428/36.7, 428/36.91, 428/34.7, 428/451, 428/35.9, 220/456, 220/457, 604/403, 604/411, 604/412, 604/415
• US Class Current: 428/34.7
• CPC Class Codes: B05D 1/62 Plasma-deposition of organic layers plasma deposition in general C23C14/00, C23C16/00
• CPC Class Codes: B65D 1/0215 multilayered B65D81/3837 takes precedence
• CPC Class Codes: B65D 23/0814 characterised by the composition of the material
• 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 7/043 Improving the adhesiveness of the coatings per se, e.g. forming primers adhesives in the form of films or foils characterised by the primer layers between the polymer carriers and the adhesives C09J7/50
• CPC Class Codes: C08J 7/048 Forming gas barrier coatings
• CPC Class Codes: C23C 16/045 Coating cavities or hollow spaces, e.g. interior of tubes; Infiltration of porous substrates
• CPC Class Codes: C23C 16/30 Deposition of compounds, mixtures or solid solutions, e.g. borides, carbides, nitrides
• CPC Class Codes: C23C 16/34 Nitrides C23C16/303 takes precedence
• CPC Class Codes: C23C 16/401 containing silicon
• CPC Class Codes: C23C 16/402 Silicon dioxide
• CPC Class Codes: C23C 16/405 of refractory metals or yttrium
• CPC Class Codes: Y10T 428/1321 Polymer or resin containing [i.e., natural or synthetic]
• CPC Class Codes: Y10T 428/1352 Polymer or resin containing [i.e., natural or synthetic]
• CPC Class Codes: Y10T 428/1359 Three or more layers [continuous layer]
• 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]
• CPC Class Codes: Y10T 428/1393 Multilayer [continuous layer]

Abstract

A plastic vessel has a barrier coating comprising sequentially arranged barrier layers of organic polymer and of inorganic oxides, nitrides or oxynitrides. The barrier coating preferably has at least two inorganic barrier layers. The thickness of the inorganic barrier layers lies between 2 and 300 nm and the thickness of the organic barrier layer lies between 2 and 1000 nm. The total thickness of the layer packet should not exceed 0.1 mm.

Claims

1. A vessel comprising:

a vessel body made of plastic;

a barrier coating in the form of a multilayer coating including a plurality of sequentially disposed barrier layers applied to said vessel body and being of different composition;

at least two of said barrier layers being of an inorganic barrier material wherein said layers are selected from the group consisting of at least one of oxides, nitrides, oxynitrides and mixtures thereof;

at least one of said barrier layers being an organic barrier layer made of a polymer material and the organic barrier layer being arranged in said multilayer coating to alternate with the inorganic barrier layers; and

,

said organic barrier layer containing up to 10 metal atoms per carbon atom.

2. The vessel of claim 1, wherein said organic barrier layer contains the same metal atoms as each of said inorganic barrier layers.

3. A vessel comprising:

a vessel body made of plastic;

a barrier coating in the form of a multilayer coating including a plurality of sequentially disposed barrier layers applied to said vessel body and being of different composition;

at least two of said barrier layers being of an inorganic barrier material wherein said layers are selected from the group consisting of at least one of oxides, nitrides, oxynitrides and mixtures thereof;

at least one of said barrier layers being an organic barrier layer made of a polymer material and the organic barrier layer being arranged in said multilayer coating to alternate with the inorganic barrier layers; and

,

said organic barrier layer contains 0.1 to 5 metal atoms per carbon atom.

4. A vessel comprising:

a vessel body made of plastic;

a barrier coating in the form of a multilayer coating including a plurality of sequentially disposed barrier layers applied to said vessel body and being of different composition;

at least two of said barrier layers being of an inorganic barrier material wherein said layers are selected from the group consisting of at least one of oxides, nitrides, oxynitrides and mixtures thereof;

at least one of said barrier layers being an organic barrier layer made of a polymer material and the organic barrier layer being arranged in said multilayer coating to alternate with the inorganic barrier layers; and

,

each of said inorganic barrier layers and the adjoining organic barrier layer conjointly defining a transition region wherein the respective compositions of the inorganic barrier layer and the organic barrier layer mix.

5. A vessel comprising:

a vessel body made of plastic;

a barrier coating in the form of a multilayer coating including a plurality of sequentially disposed barrier layers applied to said vessel body and being of different composition;

at least two of said barrier layers being of an inorganic barrier material wherein said layers are selected from the group consisting of at least one of oxides, nitrides, oxynitrides and mixtures thereof;

at least one of said barrier layers being an organic barrier layer made of a polymer material and the organic barrier layer being arranged in said multilayer coating to alternate with the inorganic barrier layers;

said organic barrier layer and the adjoining inorganic barrier layer conjointly defining a boundary interface; and

,

said organic barrier layer containing metal atoms and the content of said metal atoms varies over the thickness of said organic barrier layer with said content being less in the center of said organic barrier layer than at said boundary interface.

6. A vessel comprising:

a vessel body made of plastic;

a barrier coating in the form of a multilayer coating including a plurality of sequentially disposed barrier layers applied to said vessel body and being of different composition;

at least two of said barrier layers being of an inorganic barrier material wherein said layers are selected from the group consisting of at least one of oxides, nitrides, oxynitrides and mixtures thereof;

at least one of said barrier layers being an organic barrier layer made of a polymer material and the organic barrier layer being arranged in said multilayer coating to alternate with the inorganic barrier layers; and

,

said material of said inorganic barrier layers consisting of one or more nitrides of Ti, Si or Al.