×

Fiber coated with water blocking material

  • US 6,891,003 B2
  • Filed: 12/12/2002
  • Issued: 05/10/2005
  • Est. Priority Date: 11/24/1998
  • Status: Expired due to Fees
First Claim
Patent Images

1. In a process for preparing a superabsorbent polymer by providing an aqueous monomer solution, raising the temperature of the monomer to initiate the polymerization of the monomer, maintaining the temperature during the polymerization, and evaporating the water to produce a polymer, the improvement which comprises providing a shearing rate of at least 10,000 revolutions per minute during the entire process to produce a polymer having a particle size below 100 microns.

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