Surface treatment of glass bubbles
AssigneeFord Global Technologies, LLC
InventorsHaibo Zhao, Daniel Quinn Houston, Rick H. Wykoff
Life of this patent
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Abstract
A method is provided for treating the outer surfaces of a plurality of glass bubbles. That method includes loading a plurality of glass bubbles into a processing vessel having a roughened lining and displacing the processing vessel so that the plurality of glass bubbles move against the roughened lining to thereby roughen the outer surfaces. Alternatively, or in addition, the glass bubbles are subjected to air plasma treatment to increase the surface energy of the glass bubbles.
Claims18
A method for treating outer surfaces of a plurality of glass bubbles, comprising:
- loading a plurality of glass bubbles into a processing vessel having a roughened lining;
- and
- displacing said processing vessel so that said plurality of glass bubbles move against said roughened lining and thereby roughen said outer surfaces.
A method for treating outer surfaces of a plurality of glass bubbles, comprising:
- a subjecting said plurality of glass bubbles to an air plasma treatment so as to provide an outer surface roughness of about 0.01% to about 0.1% of a diameter of said plurality of glass bubbles.
Dependencies are inferred from the claim text.