Fujifilm Corporation

Tetsuo Hiratou

Kentaro Nakamura

Shouji Ooya

Satoru Toda

Kentarou Nakamura

An object to be solved by the present invention is to provide a method for preparing a composition prepared by firmly coating the surface of a material with a biopolymer, and a composition prepared by this method wherein the surface of a material is firmly coated with a biopolymer. The present invention provides a method for coating with a biopolymer, which comprises coating the surface of a synthetic polymer with a biopolymer dissolved in a solvent comprising an organic fluorine compound.

Method for coating synthetic polymer surface with biopolymer

It is an object of the present invention to solve the problem of precipitation of a poorly water-soluble compound in a hydrophilic matrix upon inclusion of the poorly water-soluble compound in the hydrophilic matrix. The present invention provides a composition wherein a poorly water-soluble compound is contained in a hydrophilic matrix in a finely-dispersed state.

Hydrophilic matrix containing poorly water-soluble compound and method for producing the same

It is an object of the present invention to provide a method for chemically modifying biopolymer and polypeptide with a hydrophobic compound or a compound which causes degradation or reaction under basic condition. The present invention provides a method for producing a chemically modified biopolymer or polypeptide, wherein a biopolymer or polypeptide is chemically modified in a reaction solution containing an organic fluorine compound.

Method for chemically modifying biopolymer and polypeptide

It is an object of the present invention to provide a method wherein a structure which was prepared with a biopolymer such as gelatin is chemically modified with the use of a low-volatile chemical substance without dissolution of gelatin, and a biopolymer crosslinking method for producing a biopolymer having high strength (a high degree of crosslinking). The present invention provides a method for producing a modified biopolymer, which comprises reacting a structure prepared with a biopolymer with a solid-state compound having a melting point of 50&#xb0; C. or more at a humidity of 50% or more, and a method for crosslinking biopolymer which comprises treating a biopolymer with a crosslinking agent, wherein the crosslinking agent concentration in a reaction mixture is 1.0% to 10% by weight and crosslinking is carried out in the presence of an organic fluorine compound.

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Kanagawa, Japan

Tetsuo Hiratou