Thermoplastic/foam core/fiber-reinforced resin structural composite material, a process for making said material and a boat structure made from said material
Patent 4910067 Issued on March 20, 1990. Estimated Expiration Date: 
July 21, 2009. 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.
July 21, 2009. 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 3493449 Novel laminated panel Patent #: 4753837 InventorApplicationNo. 383809 filed on 07/21/1989US Classes:428/139, Keyed156/79, Subsequent to assembly of laminae264/45.3, Incorporating particulate material, fibers, or batts in a random distribution within a foamed body264/46.4, Shaping material and uniting to a preform or solidified layer428/309.9, With internal element bridging layers, nonplanar interface between layers, or intermediate layer of commingled adjacent foam layers428/317.9Void-containing component contains also a solid fiber or solid particleExaminersPrimary: Van Balen, William J.Attorney, Agent or FirmInternational ClassB32B 003/26AbstractA structural composite material is provided. The material comprises a thermoplastic layer, a layer of fibrous material spaced from the thermoplastic layer and a foam core disposed in the space between the layers. A resin impregnates and holds the layer of fibrous material together to form a fiber-reinforced resin structure. The foam core and the fiber-reinforced resin structure are integrally formed from a core material capable of having both a foamed character and a resinous character. A process for manufacturing the composite and a boat structure formed from the material are also provided.Field of SearchSubsequent to assembly of laminaeIncorporating particulate material, fibers, or batts in a random distribution within a foamed body Shaping material and uniting to a preform or solidified layer Keyed With internal element bridging layers, nonplanar interface between layers, or intermediate layer of commingled adjacent foam layers Void-containing component contains also a solid fiber or solid particle | |
