Irradiated absorbent materials
AssigneeSuper Absorbent Company
InventorsPhillip Berlin, Mark Sinkinson
Life of this patent
Estimating the term…
Abstract
Polymer particles are irradiated with radiation from a high energy source to increase the water or other fluid absorbency of the particles. Products manufactured using the activated particles include protective undergarments, bandages, kitty litter, and spill clean up materials.
Claims20
An article of manufacture created by the process of irradiating polymer particles with radiation from a high energy source under conditions that open multiple covalent bonds on at least some surfaces of at least some of the particles by a length of at least one angstrom.
A process of increasing the water absorbency of a polymer, comprising:
- providing the polymer in particle form;
- subjecting the particles to a plasma under conditions that opens multiple covalent bonds on a least some surfaces of at least some of the particles by a length of at least one angstrom.
Dependencies are inferred from the claim text.