Ionic material

Details Ionic material Ionic material

2008-05-27

2008-05-27

Koslow, C. Melissa (Department: 1793)

Compositions

Magnetic

With wax, bitumen, resin, or gum

C524S435000, C524S431000, C252S062560

Reexamination Certificate

active

07378035

ABSTRACT:
The present invention relates to a material containing ionic groups that form an ionic pair with a free radical catalyst. In particular, the invention relates to materials that are magnetic, and to the methods of forming such materials. For example, a method of forming paramagnetic particles is disclosed, the method comprising contacting a substance having cationic groups with an aqueous solution of Fe3+so that all the cationic groups are exchanged for Fe3+, adjusting the pH of the solution to between9and10, to form Fe(III) hydroxide, reducing a portion of the Fe(III) hydroxide to Fe(II) hydroxide to obtain a blend of the Fe(III) hydroxide the Fe(II) hydroxide, and crystallizing the two iron hydroxides to form paramagnetic particles comprising magnetite. The invention also discloses the formation of polymers from the ionic groups within the material. Various applications of the resulting materials are also disclosed.

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