Laminated structural member and method of making same
Patent 4097648 Issued on June 27, 1978. Estimated Expiration Date: 
June 27, 1995. 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.
June 27, 1995. 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 3373233 3563844 3671615 3806562 Structural member of particulate material and method of making same Lignocellulosic particle board cured with alkali- and acid-catalyzed phenol aldehyde thermosetting resins Patent #: 3968294 InventorAssigneeApplicationNo. 05/714628 filed on 08/16/1976US Classes:428/326, Cellulosic (e.g., wood, paper, cork, rayon, etc.)428/2, COMPACTED TRASH OR REFUSE BUNDLE428/327, Polymeric or resinous material428/338, Monolayer with structurally defined element428/339, Including synthetic resin or polymer layer or component428/529, Phenoplast428/535, Wood or paper428/537.1, Of wood523/207, Solid polymer or solid polymer-forming system is encapsulated in or impregnated in a nonreactant material523/208, Solid polymer or solid polymer-forming system is or derived from an aldehyde or derivative523/210, Product having a material encapsulated in or impregnated in a nonreactant material523/220, Process of forming a composition having two or more solid materials having defined physical dimensions or surface areas; or composition containing same524/13, Wood or wood cellulose fiber or flour524/14, At least one solid polymer or SICP derived from at least one nonethylenic reactant524/16Bark or corkExaminersPrimary: Robinson, Ellis P.Attorney, Agent or FirmInternational ClassesB29B 17/00 (20060101)B32B 21/00 (20060101) B32B 21/02 (20060101) H01B 3/52 (20060101) H01B 3/18 (20060101) AbstractA laminated structural member is fabricated with one layer of sheet material such as plywood or fiberboard and an adjacent layer bonded thereto and formed from a mixture of scrap particles of thermoplastic wire and cable insulation, wood particles, comminuted paper, sawdust, and a suitable resin binder. The fabrication procedure is carried out by initially forming a mixture of reclaimed thermoplastic wire or cable insulation, a thermosetting binder, and one or more wood like fillers, such as wood chips, comminuted paper and sawdust and mold release agent. The mixture is then placed in a mold with the sheet material and is subjected to heat and pressure to form a structural member. | |
