Plastic multilayer vessel
Patent 5246753 Issued on September 21, 1993. Estimated Expiration Date: 
September 21, 2010. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
September 21, 2010. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesComposite material Drying agent in multi-layer polymeric structure Drying agent in multi-layer polymeric structure Oxygen scavenger Preservative composition Aldehyde or imine oxygen scavengers for vinyl polymerizations Patent #: 4886618 InventorsAssigneeApplicationNo. 550581 filed on 07/10/1990US Classes:428/36.7, 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)252/188.28, Deoxidant or oxygen scavenging428/36.6, Contains vapor or gas barrier, polymer derived from vinyl chloride or vinylidene chloride, or polymer containing a vinyl alcohol unit428/403, Coated428/404, Silicic or refractory material containing (e.g., tungsten oxide, glass, cement, etc.)428/406, Glass particles or spheres428/475.8, Next to addition polymer from unsaturated monomer(s)428/477.7, Inorganic-containing or next to inorganic-containing428/483, Next to addition polymer from unsaturated monomers428/515, Next to second addition polymer from unsaturated monomers428/516, Monoolefin polymer428/518, Next to vinyl or vinylidene chloride polymer428/520, Ester, halide or nitrile of addition polymer428/522, Ester, halide or nitrile of addition polymer428/689, Metal-compound-containing layer428/913MATERIAL DESIGNED TO BE RESPONSIVE TO TEMPERATURE, LIGHT, MOISTURE, ETC.ExaminersPrimary: Lesmes, George F.Assistant: Dye, Rena L. Attorney, Agent or FirmForeign Patent References
International ClassesB32B 027/04B32B 027/08 Foreign Application Priority Data1989-07-10 JPAbstractDisclosed is a plastic multilayer vessel having a laminate structure comprising an intermediate layer of a resin composition formed by incorporating an organic metal complex of a transition metal into a gas-barrier resin having a specific oxygen permeation coefficient and a specific water absorption, and outer and inner layers of a moisture-resistant thermoplastic resin disposed on both the sides of the intermediate layer. This vessel shows an excellent resistance to the permeation of oxygen even under conditions where water and heat simultaneously act.Field of SearchContains vapor or gas barrier, polymer derived from vinyl chloride or vinylidene chloride, or polymer containing a vinyl alcohol unitVapor or gas barrier, polymer derived from vinyl chloride or vinylidene chloride, or polymer containing a vinyl alcohol unit is sandwiched between layers (continuous layer) Elemental metal containing (e.g., substrate, foil, film, coating, etc.) Three or more layers (continuous layer) Ester, halide or nitrile of addition polymer Ester, halide or nitrile of addition polymer MATERIAL DESIGNED TO BE RESPONSIVE TO TEMPERATURE, LIGHT, MOISTURE, ETC. Coated Silicic or refractory material containing (e.g., tungsten oxide, glass, cement, etc.) Glass particles or spheres Next to addition polymer from unsaturated monomer(s) Metal-compound-containing layer Inorganic-containing or next to inorganic-containing Next to addition polymer from unsaturated monomers Process of forming a composition of a solid polymer or solid polymer forming system by admixing a product in the form of a surface coated, impregnated, encapsulated, or surface modified fiber, sheet, particle, or web, with a material; or composition which is the result of said admixing Product having elemental carbon Product having a silicon atom Glass Transition metal atom Heavy metal or aluminum Nitro compound has an atom other than C, H, N, or O or has an oxygen or nitrogen atom other than as part of a nitro group Metal or ammonium group Nitrogen ring is part of a ring system having five or more rings fused or bridged together Deoxidant or oxygen scavenging | |
