Laminate of metal sheets and continuous filaments-reinforced thermoplastic synthetic material, as well as a process for the manufacture of such a laminate
Patent 4992323 Issued on February 12, 1991. Estimated Expiration Date: 
October 11, 2008. 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.
October 11, 2008. 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 ReferencesLaminate of metal sheet material and threads bonded thereto, as well as processes for the manufacture thereof Laminate of aluminum sheet material and aramid fibers Light weight armor Armour plate composite with ceramic impact layer Patent #: 4836084 InventorsAssigneeApplicationNo. 255432 filed on 10/11/1988US Classes:428/215, Absolute thicknesses specified428/419, Of polythioether428/457, Of metal428/458, Next to polyester, polyamide or polyimide (e.g., alkyd, glue, or nylon, etc.)428/473.5, Of polyimide428/474.4, Of polyamide442/329, Nonwoven fabric comprises an elastic strand or fiber material442/366, Including parallel strand or fiber material within the nonwoven fabric442/367, Parallel strand or fiber material is glass442/378Preformed metallic film or foil or sheet (film or foil or sheet had structural integrity prior to association with the nonwoven fabric)ExaminersPrimary: Herbert, Thomas J. Jr.Attorney, Agent or FirmForeign Patent References
International ClassesB32B 007/02B32B 015/08 Foreign Application Priority Data1987-10-14 NLAbstractFatigue resistant laminate which may be used at temperatures >120° c., and more particularly in the construction of (air or space) vehicles. It comprises at least two metal plates interconnected by an intermediate layer of thermoplastic material reinforced by continuous filaments having a modulus of elasticity of at least 50 GPa, the laminate displaying, while externally unloaded, a compressive stress (of 0-200 MPa) in every metal plate and a tensile stress (of 0-500 MPa) in the continuous filaments. The filaments may consist of aramid, glass or carbon. The thermoplastic material may be an amorphous resin having a Tg>140° C. such as, e.g., polyarylates, poly(ether)sulphones, polyetherimides, or poly-p-phenylene ethers, or a semi- or para-crystalline resin having a crystalline melting point>170° C., such as poly-phenylene sulphides, polyetherketones or liquid crystal polymers. | |
