US 9,809,493 B2
Surface treatment of glass bubbles
Haibo Zhao, Northville, MI (US); Daniel Quinn Houston, Dearborn, MI (US); and Rick H. Wykoff, Oakland, MI (US)
Assigned to Ford Global Technologies, LLC, Dearborn, MI (US)
Filed by FORD GLOBAL TECHNOLOGIES, LLC, Dearborn, MI (US)
Filed on Apr. 27, 2015, as Appl. No. 14/696,521.
Prior Publication US 2016/0340236 A1, Nov. 24, 2016
Int. Cl. C03C 19/00 (2006.01); C03C 11/00 (2006.01); B29C 70/66 (2006.01); C03C 23/00 (2006.01); C08K 7/28 (2006.01); B24B 31/02 (2006.01); B29K 509/08 (2006.01)
CPC C03C 19/00 (2013.01) [B24B 31/02 (2013.01); B29C 70/66 (2013.01); C03C 11/002 (2013.01); C03C 23/006 (2013.01); C08K 7/28 (2013.01); B29K 2509/08 (2013.01)] 18 Claims
OG exemplary drawing
 
1. 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.