Title:
少なくとも二種類のヒドロゲル形成粒子の乾燥混合物からなる吸収性ゲル化剤及びその製造方法
Document Type and Number:
Japanese Patent JP3986554
Kind Code:
B2
Abstract:
By mixing two types of hydrogel-forming particles having different Absorption Against Pressure values, a synergistic effect can be obtained wherein the AAP-value of the mixture is higher than would be expected on the basis of the weight fractions of the components of the mixture. By mixing two types of hydrogel-forming particles having different Teabag Centrifuge Capacity values and equal AAP values, an unexpected increase in the AAP value of the mixture is observed. A method of manufacturing the absorbent gelling material according to the invention comprises the steps of: providing a first type of hydrogel-forming material and a second type of hydrogel-forming material; introducing both types of hydrogel-forming material in a mixing means; and mixing both types of hydrogel-forming particles to form the mixture. Both types of hydrogel-forming material may be formed by a separate polymerisation process in separate batches, followed by mixing the two types of hydrogel-forming particles. Alternatively, a weight fraction of a single type of hydrogel-forming material may be separated from the bulk of the material, may subsequently be treated to increase the AAP value thereof, and may be mixed back into the bulk material.
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Inventors:
Schmidt, Matthias
Prishke, Manfred
Goldman, Stephen Allen
Prishke, Manfred
Goldman, Stephen Allen
Application Number:
JP50436596A
Publication Date:
October 03, 2007
Filing Date:
July 03, 1995
Export Citation:
Assignee:
THE PROCTER & GAMBLE COMPANY
International Classes:
A61F13/53; A61F13/15; C08L101/14; A61F13/472; A61F13/49; A61L15/22; A61L15/42; A61L15/60
Domestic Patent References:
| JP8053518A | ||||
| JP4506305A | ||||
| JP63185447A | ||||
| JP51125468A |
Attorney, Agent or Firm:
Kenji Yoshitake
Yukitaka Nakamura
Konno Akio
Noritaka Yokota
Masaharu Takamura
Yukitaka Nakamura
Konno Akio
Noritaka Yokota
Masaharu Takamura