Multilayer plastic articles
October 22, 2004. 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 References 3595735 Multilayered hollow plastic container Bonding a multi-layered structure of olefin-containing and nitrile-containing polymers and article Multilayer container Multi-layer barrier film Squeeze vessel Plastic bottles and process for preparation thereof Laminated plastic container and process for preparation thereof Multilayer trash bag film Multi-layer plastic vessel InventorAssigneeApplicationNo. 06/663636 filed on 10/22/1984US Classes:428/36.6, Contains vapor or gas barrier, polymer derived from vinyl chloride or vinylidene chloride, or polymer containing a vinyl alcohol unit428/218, Density or compression of components428/349, Synthetic resin or polymer428/35.4, Contains vapor or gas barrier, polymer derived from vinyl chloride or vinylidene chloride, or polymer containing a vinyl alcohol unit428/36.7, 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)428/516, Monoolefin polymer428/518, Next to vinyl or vinylidene chloride polymer428/520, Ester, halide or nitrile of addition polymer525/240Solid polymer derived from ethylene or propyleneExaminersPrimary: Buffalow, EdithAttorney, Agent or FirmInternational ClassesB32B 27/32 (20060101)B32B 27/32 (20060101) B32B 27/00 (20060101) B32B 27/00 (20060101) C08L 23/00 (20060101) C08L 23/00 (20060101) C08L 23/10 (20060101) C08L 23/10 (20060101) AbstractA multilayer high gas barrier plastic article wherein the article comprises a laminate including at least one layer of a high gas barrier polymer and at least one layer composed of an intimate blend of a propylene based polymer and an amount of linear low density polyethylene wherein said linear low density polyethylene is up to thirty weight percent or less of the blend. The multilayer high gas barrier article incorporating the intimate blend in conjunction with a high gas barrier polymer layer has good gas barrier characteristics, good mechanical properties and excellent low temperature drop impact characteristics, particularly when fabricated into free-standing bottles. | |
