Method of producing solid body having depressed portions on...

Details Method of producing solid body having depressed portions on... Method of producing solid body having depressed portions on...

2011-07-05

2011-07-05

Gupta, Yogendra N (Department: 1744)

Plastic and nonmetallic article shaping or treating: processes

Mechanical shaping or molding to form or reform shaped article

Shaping against forming surface

Reexamination Certificate

active

07972551

ABSTRACT:
A method for producing a solid body having depressed portions on its surface is provided. The method includes: using a solution which includes a solvent A, a solvent B, a solvent C, and a polymer compound, where the solvent B is a hydrophobic solvent, the solvent A is a hydrophilic solvent having a boiling point not lower than the boiling point of the solvent B, and the solvent C is a non-hydrophobic solvent having a boiling point lower than the boiling point of the solvent B, and the contents of the solvent A, solvent B, and solvent C satisfy specific conditions; and solidifying the solution while forming depressed portions on the surface of the solution by condensation during the process of evaporating the solvents included in the solution.

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Baohui Zhao et al., “Fabrication of Honeycomb Ordered Polycarbonate Films Using Water Droplets as Template,” 515 Thin Solid Films 3629-3634 (2007).

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