×

Three layer laminate

  • US 4,518,705 A
  • Filed: 09/28/1982
  • Issued: 05/21/1985
  • Est. Priority Date: 10/31/1980
  • Status: Expired due to Fees
First Claim
Patent Images

1. A process for forming an electrode comprising adding a dilute aqueous dispersion of polytetrafluoroethylene particles to an aqueous suspension of larger active carbon particles to discontinuously coat said active carbon particles with smaller polytetrafluoroethylene particles;

  • shear blending said discontinuously coated particles to form an intimate mix of active carbon particles and attenuated and fibrillated polytetrafluoroethylene;

    comminuting said intimate mix to yield a granular mix;

    forming said granular mix into an active sheet; and

    laminating the working surface of said active sheet to a current distributor and the opposite surface thereof to a polytetrafluoroethylene-containing wetproofing layer.

View all claims
  • 2 Assignments
Timeline View
Assignment View
    ×
    ×