×

METHOD OF MANUFACTURING A PARTICULATE WATER-ABSORBING AGENT COMPOSED PRINCIPALLY OF A WATER-ABSORBING RESIN

  • US 20110015351A1
  • Filed: 03/13/2009
  • Published: 01/20/2011
  • Est. Priority Date: 03/13/2008
  • Status: Active Grant
First Claim
Patent Images

1. A method for producing a particulate water-absorbing agent comprising:

  • a polymerization step for obtaining a polymer gel;

    a drying step for drying said polymer gel to obtain a particulate water-absorbing resin;

    a classification step for sieving said particulate water-absorbing resin;

    a surface cross-linking step for cross-linking the neighborhood of the surface of the particulate water-absorbing resin obtained in the classification step to obtain a particulate water-absorbing agent;

    a packaging step for filling a packaging material container with said particulate water-absorbing agent for packaging; and

    a transportation step for transporting the products produced in each of the steps to the other steps;

    wherein fine powders contained in gas composed principally of air, in any of the steps, can be collected by use of a trapping material.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×