Method of producing polymer spherical bodies

Details Method of producing polymer spherical bodies Method of producing polymer spherical bodies

2006-03-07

2006-03-07

Vargot, Mathieu D. (Department: 1732)

Plastic and nonmetallic article shaping or treating: processes

Formation of solid particulate material directly from molten...

Utilizing electrical energy

C264S494000

Reexamination Certificate

active

07008572

ABSTRACT:
This invention relates to a method of producing polymer spherical bodies and is to produce a large size spherical body having no residual strain. This method comprises suspending a liquid monomer in a supporting liquid having a magnetic susceptibility χ2larger than a magnetic susceptibility χ1of any one of the monomer and the resulting polymer and not dissolving substantially the monomer, and applying a gradient magnetic field to the supporting liquid to float droplets of the monomer at a given position in the supporting liquid, and polymerizing and solidifying the droplets while maintaining a state that the droplet is substantially shaped into a sphere through surface tension. This method is made possible to produce polymer spherical bodies capable of using in optical application and the like.

REFERENCES:
patent: 1-213303 (1989-08-01), None
patent: 9-227610 (1997-09-01), None
Yasuhiro Ikezoe et al., “Making Water Levitate”,Nature, 1998, p. 749-750, vol. 393.
Naoyuki Kitamura et al., “Containerless Melting of Glass by Magnetic Levitation Method”, Japan Journal Applied Physics, 2000, p. L324-L326, vol. 39, Part 2, No. 4A, Japan Society of Applied Physics.

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