Title:
【発明の名称】吸収性フォーム材料の親水化法
Document Type and Number:
Japanese Patent JPH06510806
Kind Code:
A
Abstract:
Normally hydrophobic foams, such as polyurethane foams and polymerized water-in-oil emulsion foams, are rendered hydrophilic by means of treatment with simple surfactants and hydrophilizing agent salts. Thus, a surfactant-containing foam is treated with a solution of, for example, calcium chloride, and is dried to leave a substantially uniformly distributed residue of hydrated or hydratable calcium chloride on the surfactant-containing internal foam surfaces. In-use, the combination of surfactant and calcium chloride hydrate provides a hydrophilic surface to the foam. Other hydratable calcium or magnesium salts such as magnesium chloride can be used. The resulting hydrophilized foams are suitable for use in absorbent devices, including diapers, sanitary napkins, bandages, and the like.
Inventors:
De Marais, Thomas Alan
Application Number:
JP50436793A
Publication Date:
December 01, 1994
Filing Date:
August 07, 1992
Export Citation:
Assignee:
THE PROCTER AND GAMBLE COMPANY
International Classes:
A61F13/15; A61F13/472; A61F13/49; A61F13/53; A61F13/56; A61L15/18; A61L15/42; A61L15/48; C08J9/00; C08J9/28; C08J9/36; C08J9/40; C08J; (IPC1-7): C08J9/36; C08J9/28
Attorney, Agent or Firm:
Kazuo Sato (3 others)