Conductive coated abrasives

  • US 5,108,463 A
  • Filed: 07/16/1990
  • Issued: 04/28/1992
  • Est. Priority Date: 08/21/1989
  • Status: Expired due to Term
First Claim
Patent Images

1. An abrasive article comprising:

  • (a) a support member having a front surface and a back surface, said support member optionally being saturated with an adhesive binder, said support member optionally having a binder adhesive coating on said front surface, and said support member optionally having a binder adhesive coating on said back surface;

    (b) abrasive granules;

    (c) a first layer of binder adhesive on said support member having said abrasive granules at least partially embedded therein; and

    (d) at least one additional layer of binder adhesive overlying said first layer of binder adhesive;

    wherein at least one of said binder adhesive layers, coatings, and saturant contains a quantity of carbon black aggregates sufficient to provide said binder adhesive containing said carbon black aggregate with a surface resistivity of less than 2000 kilo-ohms/cm.

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