×

Fiber reinforced cementitious substrate

  • US 4,085,001 A
  • Filed: 06/30/1976
  • Issued: 04/18/1978
  • Est. Priority Date: 07/11/1975
  • Status: Expired due to Term
First Claim
Patent Images

1. A process for preparing a glass fiber-reinforced cement sheet which comprises dewatering a cement-containing slurry on a wire to form a wet film and winding said wet film on a making roll;

  • the improvement which comprises utilizing in the process an aqueous, cement-containing slurry having a solid content of from 2-30 wt% and wherein the solid component of said slurry comprises 1 to 10 wt% glass fibers, and at least one member selected from the group consisting of 1 to 10 wt% asbestos and 0.03 to 5 wt% of a specific fiber wherein said specific fiber is selected from the group consisting of cotton, flax, hemp, wools and silk with the remainder cement material.

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