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Flexible, asbestos-free gasket material

  • US 4,529,653 A
  • Filed: 11/07/1983
  • Issued: 07/16/1985
  • Est. Priority Date: 11/12/1982
  • Status: Expired due to Term
First Claim
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1. Non-asbestos flexible sheet material made by dewatering on a water-permeable conveyor a layer of aqueous slurry and compressing and drying the dewatering layer, the aqueous slurry employed being one that contains the following ingredients in the following proportions by dry weight:

  • ball clay;

    25-44%mica or chlorite;

    25-40%graphite;

    10-30%cellulose fibers;

    3-15%synthetic nitrile rubber;

    1-10%starch;

    1-5%.

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