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AssigneeNippon Shokubai Co., Ltd.
InventorsMasazumi Sasabe, Katsuhiko Sakamoto, Kozo Nogi, Motohiro Arakawa
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A method for producing a porous cross-linked polymer sheet capable of slicing quickly is provided. This method comprises a step for obtaining a porous cross-linked polymer by forming and polymerizing an HIPE, a step for dehydrating the porous cross-linked polymer, and a step for subsequently slicing the dehydrated porous cross-linked polymer. According to this invention, by performing the step of dehydration prior to the conventional step of slicing, it is made possible to prevent the porous cross-linked polymer from adhering to the blade and the guides provided for a slicer, and allow the slicing to be attained quickly. By removing the salt from the polymer, it is further made possible to prevent a production device from gathering rust and the porous cross-linked polymer from permitting adhesion of rust thereto.
A method for the production of a porous cross-linked polymer sheet, comprising a step for obtaining a porous cross-linked polymer by forming and polymerizing a water-in-oil type high internal phase emulsion, a step for dehydrating the porous cross-linked polymer, and a step for subsequently slicing the porous cross-linked polymer.
A method for the production of a porous cross-linked polymer sheet, comprising a step for obtaining a porous cross-linked former-stage polymer by forming a water-in-oil type high internal phase emulsion and subjecting the formed water-in-oil type high internal phase emulsion to a former-stage polymerization, a step for dehydrating the porous cross-linked former-stage polymer, a step of subsequently slicing the porous cross-linked former-stage polymer into pieces of a prescribed thickness, and a step for subjecting the porous cross-linked former-stage polymer to a latter-stage polymerization thereby obtaining a porous cross-linked polymer.
Dependencies are inferred from the claim text.