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Method for manufacturing plastic-substitute goods by using natural materials

  • US 6,475,416 B2
  • Filed: 08/30/2001
  • Issued: 11/05/2002
  • Est. Priority Date: 07/06/2000
  • Status: Expired due to Fees
First Claim
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1. A method for manufacturing plastic-substitute goods by using natural materials, comprising the steps of:

  • preparing a glue by mixing 20 wt % of a starch and 80 wt % of water together, and by heating this mixture;

    washing and drying rice husks to a drying degree of 98%;

    mixing the glue and the rice husks together so as to form a mixture of the glue and the rice husks, drying them to a drying degree of 98%, and crushing them to a size range of 0.01-0.1 mm;

    mixing 85 wt % of the mixture of the glue and the rice husks and 15 wt % of rosin, and then mixing again 85 wt % of this whole mixture with 15 wt % of water to form a final mixture; and

    molding the final mixture by a molding machine at a temperature of 100-350 degrees C. under a pressure of 5 Kg/Cm2 at a production frequency of 30-80 seconds per product.

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