Method for modifying polymer surface and method for producing polymer product
AssigneeHitachi Maxell, Ltd.
InventorsAtsushi Yusa, Masahiro Oshima
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Abstract
A method for modifying a surface of a polymer such as a thermoplastic resin is provided, in which a supercritical fluid, especially carbon dioxide in a supercritical state is used as a solvent, and the polymer surface is further converted to have highly advanced function or high performance in a short period of time. In the method for modifying the polymer surface of the present invention, a solute is previously applied to the polymer surface. Accordingly, the solute can be permeated into the surface of the polymer swelled by the contact of the supercritical fluid. When this method is used, it is possible to permeate the solute into the polymer at a high concentration in a short period of time.
Claims21
A method for modifying a surface of a polymer with a supercritical fluid, the method comprising:
- applying a solute to the surface of the polymer;
- and
- bringing the supercritical fluid into contact with the surface of the polymer to which the solute has been applied so that the solute is permeated into the surface of the polymer.
A method for producing a polymer product by using a supercritical fluid, the method comprising:
- preparing a polymer;
- applying a solute to a surface of the polymer;
- and
- bringing the supercritical fluid into contact with the surface of the polymer to which the solute has been applied so that the solute is permeated into the surface of the polymer.
Dependencies are inferred from the claim text.