Method of surface treating particulate material using electromagnetic radiation
AssigneeThe Procter & Gamble Company
InventorsTorsten Lindner, Aleksey Mikhailovich Pinyayev, Andrew Julian Wnuk
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Abstract
A method of surface treating particulate materials with electromagnetic radiation that is carried out with a so-called roll reactor comprising a rotating roll and an irradiation source. Radical former molecules can be applied on the surface of superabsorbent polymer particles, which are fed onto the surface of the roll and irradiated while moved with the rotating roll. The irradiation source is provided such that the radiation is able to reach at least part of the particulate material that has been fed onto the surface of the roll.
Claims19
A method of surface treating particulate materials, the method comprising:
- providing a particulate material;
- providing a roll with an outer surface and a roll width;
- providing an irradiation source configured to emit electromagnetic radiation;
- feeding the particulate material onto the outer surface of the roll;
- rotating the roll;
- irradiating at least part of the particulate material with electromagnetic radiation from the irradiation source under normal atmosphere, while rotating the roll;
- and
- collecting the particulate material after the irradiating.
Dependencies are inferred from the claim text.