Method for removing organic solvent
AssigneeFUJIFLIM Corporation
InventorsShouji Ooya, Tetsuo Hiratou
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Abstract
An object of the present invention is to provide a method for efficiently removing a residual organic solvent in a biopolymer structure. The present invention provides a method for removing an organic solvent contained in a biopolymer structure from the structure, (1) wherein the structure is placed in an atmosphere containing a solvent other than the organic solvent so as to remove the organic solvent, or (2) wherein the organic solvent is removed by washing the structure with a solution mainly containing water, or (3) wherein the structure contains a hydrophilic compound.
Claims33
A method for removing an organic solvent contained in a biopolymer structure from the structure, which comprises placing the structure in an atmosphere containing a solvent other than the organic solvent so as to remove the organic solvent.
A composition comprising gelatin or collagen, which is composed of a structure comprising gelatin or collagen, provided that the structure is prepared by use of an organic fluorine compound and the residual organic fluorine compound content in the structure is 0.1% or less.
A method for removing an organic solvent contained in a biopolymer structure from the structure, wherein the organic solvent is removed by washing the structure with a solution mainly containing water.
A method for removing an organic solvent contained in a biopolymer structure from the structure, wherein the structure contains a hydrophilic compound.
Dependencies are inferred from the claim text.