Laminate of aluminum sheet material and aramid fibers
Patent 4500589 Issued on February 19, 1985. Estimated Expiration Date: 
September 20, 2003. 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 20, 2003. 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 3189054 3321019 Hybrid composite laminate structures Metal-clad dielectric sheeting Metal-thermoplastic-metal laminates Patent #: 4369222 InventorsAssigneeApplicationNo. 06/533883 filed on 09/20/1983US Classes:428/213, Thickness (relative or absolute)428/215, Absolute thicknesses specified428/216, No layer or component greater than 5 mils thick428/416, Next to metal428/418, Next to metal428/425.8, Next to free metal428/458, Next to polyester, polyamide or polyimide (e.g., alkyd, glue, or nylon, etc.)428/474.4, Of polyamide428/902, HIGH MODULUS FILAMENT OR FIBER428/910, PRODUCT WITH MOLECULAR ORIENTATION442/233Plural metallic films or foils or sheetsExaminersPrimary: McCamish, Marion E.Attorney, Agent or FirmInternational ClassesB32B 15/08 (20060101)B29C 70/08 (20060101) B64C 1/00 (20060101) Foreign Application Priority Data1981-01-09 NLAbstractThe invention relates to a laminate composed of two, three, four or more aluminum-containing metal sheets. The metal sheets, which may for instance be of an aluminum alloy, are bonded together by means of adhesive layers. In the adhesive layers, which are of a thermohardening material, there are embedded poly-paraphenylene terephthalamide threads. These threads are provided in the form of yarns made up of endless filaments and lie in a practically straight line in the adhesive which substantially consists of a thermohardening material. The adhesive layers contain the threads in an amount of 20 to 80% by weight.Other References
Field of SearchNext to metalNext to metal Next to free metal Next to polyester, polyamide or polyimide (e.g., alkyd, glue, or nylon, etc.) HIGH MODULUS FILAMENT OR FIBER PRODUCT WITH MOLECULAR ORIENTATION Thickness (relative or absolute) Absolute thicknesses specified No layer or component greater than 5 mils thick Of polyamide | |
