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Horizons: Patents of Interest
Magazine article

Horizons: Patents of Interest

Roger Corneliussen
Plastics Engineering, Vol.62(5)
01 May 2006

Abstract

Innovations Manufacturing Plastics industry Technology
Large (6- to 9-mm) polymer spheres are formed by suspension polymerization using the magneto-Archimedes effect with no residual strain. A liquid monomer is suspended in a supporting liquid having a magnetic susceptibility larger than that of the monomer. A gradient magnetic field is applied to suspend monomer droplets. The droplets are shaped into a sphere through surface tension and then polymerized and solidified while suspended.

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