Metal-coated hollow microspheres

Details Metal-coated hollow microspheres Metal-coated hollow microspheres

B - Operations, Transporting

22

F

117/46.2

B22F 1/00 (2006.01) B01J 13/04 (2006.01) B01J 13/22 (2006.01) B05D 1/36 (2006.01) C04B 18/08 (2006.01) C04B 20/12 (2006.01) C09C 1/28 (2006.01) C09C 1/40 (2006.01)

Patent

CA 1243908

METAL-COATED HOLLOW MICROSPHERES ABSTRACT OF THE DISCLOSURE A process for preparing a metal-coated hollow microsphere comprising the combination of steps of: (a) vigorously admixing a major quantity of hollow microspheres (cenospheres) with a thermo- setting binder adhesive until the microspheres are wet-out; (b) slowly adding metal flakes to the thus wet-out microspheres from step (a) until the wet-out microspheres are essentially completely coated with the metal flakes; (c) binding the metal flakes to the said wet-out microspheres by slowly increasing the temperature of the metal coated wet-out cenospheres from step (b) to about 350°F; and (d) intermittently admixing (agitating) the metal-coated microspheres from step (e) in the absence of any further heating, until dry. The dry product is recovered and ready for packaging.

498710

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