Title:
【発明の名称】吸収性フォーム材料へ重合可能なエマルジョンの調製法
Document Type and Number:
Japanese Patent JP3236294
Kind Code:
B2
Abstract:
Disclosed is a process for the continuous preparation of high internal phase emulsions which are suitable for subsequent polymerization into polymeric foam materials that, upon dewatering, act as absorbents for aqueous body fluids. The process involves continuous introduction of a certain type of monomer-containing oil phase and a certain type of electrolyte-containing water phase into a dynamic mixing zone at relatively low water to oil phase ratios. Flow rates are then steadily adjusted to increase the water to oil ratio of the streams fed to the dynamic mixing zone while subjecting the dynamic mixing zone contents to shear agitation which is sufficient to thereby form a high internal phase emulsion that, upon subsequent polymerization, provides a foam having an average cell size of from about 5 to 100 microns. The formation of such a stable high internal phase emulsion is completed by feeding the contents of the dynamic mixing zone to and through a static mixing zone.
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Inventors:
Desmares, Thomas Allen
Dick, Stephen Thomas
Sibley, Thomas Mickle
Dick, Stephen Thomas
Sibley, Thomas Mickle
Application Number:
JP50439393A
Publication Date:
December 10, 2001
Filing Date:
August 07, 1992
Export Citation:
Assignee:
THE PROCTER AND GAMBLE COMPANY
International Classes:
A61F13/15; A61F13/49; A61L15/60; A61F13/53; B01F3/08; B01F13/10; C08F2/32; C08F12/00; C08F20/18; C08F212/08; C08F212/34; C08F220/10; C08F220/18; C08F236/04; C08J9/00; C08J9/28; B01F7/00; C08F; (IPC1-7): C08F2/32; C08F220/18; C08F236/04
Domestic Patent References:
| JP6510075A |
Other References:
【文献】米国特許3565817(US,A)
Attorney, Agent or Firm:
Kazuo Sato (3 others)