Patent ID: 6020175
Filing Date: 2000-02-01
Classification: C07K,C09B,C12N,Y10S

Abstract:
A method for producing a multiple layered functional thin film which comprises:immersing a solid support having an electric charge in a solution containing a mixture of functional molecules that provide a desired function in a physical or chemical process and charged polymer molecules, different from the functional molecules, that form a matrix to fix the functional molecules, which solution of functional molecules and charged polymer molecules having a net electric charge opposite to that of the solid support, to form a layer containing said functional molecules and said charged polymer molecules;immersing the solid support and said layer containing said functional molecules and said charged polymer molecules in a solution containing charged polymer molecules having a net electric charge opposite to that of said solution containing the mixture of charged polymer molecules and functional molecules; andrepeating at least once said steps of immersing said solid support in a solution containing a mixture of charged polymer molecules and functional molecules and in a solution containing charged polymer molecules to form a desired multi-layered thin film.