Wood composite layered material

Details Wood composite layered material Wood composite layered material

1996-12-02

1998-07-28

Thomas, Alexander

Stock material or miscellaneous articles

Structurally defined web or sheet

Including grain, strips, or filamentary elements in...

428114, 428535, 4285371, 428105, 144333, B32B 528

Patent

active

057860637

ABSTRACT:
A multi-layered composite building material is provided which allows effective utilization of forest resources by using so-called low quality materials such as small-diameter wood, old wood, pieces of wood produced as byproducts of lumbering, and/or bamboo. The material can meet various requirements and properties, and can be produced at a low cost. In a structural layer, an adhesive agent is applied to a plurality of finely split pieces which are formed by finely splitting a raw material such as wood or bamboo. The finely split pieces are arranging in parallel to a fiber direction. A shock/vibration-absorbing layer is formed by applying an adhesive agent to small pieces of wood and bamboo and the like. Structural layers and shock/vibration-absorbing layers are alternately arranged to provide a multi-layered structure. The structure is press-molded to a predetermined thickness and optionally heated such that the layers are adhered together to produce the composite multilayered material. The shock/vibration-absorbing layer may be mixed with resin formed, for example, as a pellet shape, to provide a mixed vibration-absorbing material with improved properties.

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J.D Snodgrass, et al., "Particleboard of Aligned Wood Strands", Proceedings of the 7th Washington State University Symposium on Particleboard, Dec. 1974, Editor: Maloney, Thomas M., Washington State University, Pullman, Washington, pp. 415-448.
J.A. Youngquist et al., "Opportunities for Combining Wood with Nonwood Materials", Proceedings of the 23rd Washington State University International Particleboard/Composite Materials Symposium, Dec. 1989, Editor: Maloney,Thomas M., Washington State University, Pullman, Washington, pp. 141-157.
S. Sueyoshi, et al., "Dynamic behavior of wood strip over elastic underlayment composite flooring subjected to light impact loads,"Wood Science and Technology, vol. 25, Dec. 1991, No. 4, pp. 309-318 ISSN-0043-7719.

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