Pressurizable thermoplastic container having an exterior polyurethane layer and its method of making
Patent 5300334 Issued on April 5, 1994. Estimated Expiration Date: 
December 16, 2012. 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.
December 16, 2012. 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 2830721 2836318 2836319 2860801 2985542 3279940 3823032 Polyethylene terephthalate bottle for carbonated beverages having reduced bubble nucleation Glass container coated with polyurethane Process for the shatterproof coating of glass surfaces InventorsAssigneeApplicationNo. 991484 filed on 12/16/1992US Classes:428/35.7, Polymer or resin containing (i.e., natural or synthetic)215/12.2, Coating or lamination215/375, Plurality of feet215/379, SIDEWALL STRUCTURE428/36.6, Contains vapor or gas barrier, polymer derived from vinyl chloride or vinylidene chloride, or polymer containing a vinyl alcohol unit428/36.8, Natural or synthetic rubber or rubber-like compound containing428/423.7Next to polyester (polyethylene terephthalate, etc.)ExaminersPrimary: Robinson, Ellis P.Assistant: Dye, Rena L. Attorney, Agent or FirmInternational ClassB65D 023/08AbstractPressurizable thermoplastic containers, such as those made from polyethylene terephthalate containing a polyurethane layer on the exterior surface thereof are disclosed. The polyurethane layer which is typically applied by a coating process provides the bottle with resistance to stress cracking. The containers are useful as refillable bottles for carbonated beverages which have a tendency to stress crack.Field of SearchPolymer or resin containing (i.e., natural or synthetic)Natural or synthetic rubber or rubber-like compound containing Multilayer (continuous layer) Next to polyester (polyethylene terephthalate, etc.) Of polyamidoester (polyurethane, polyisocyanate, polycarbamate, etc.) Next to addition polymer of ethylenically unsaturated monomer Contains vapor or gas barrier, polymer derived from vinyl chloride or vinylidene chloride, or polymer containing a vinyl alcohol unit Coating or lamination | |
