Sheets containing microencapsulated color-coded micromagnets
AssigneeThalatta, Inc.
InventorClarence R. Tate
Life of this patent
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Abstract
This invention relates to a hardened transparent sheet comprising a binder and hardened microcapsules, the microcapsules containing viewable color-coded micromagnets rotably dispersed in a liquid so as to be magnetically responsive, the microcapsules being pre-hardened independently of the hardening of the binder in forming the sheet.
Claims3
A sheet comprising a hardened transparent film-forming binder and hardened transparent individual microcapsules dispersed in said binder, each microcapsule including a shell wall composed of a material different than the material of said binder, said microcapsules being prepared and completed prior to dispersion in said binder and containing viewable, magnetically responsive, color-coded micromagnets having a constant magnetization vector rotatably dispersed in a liquid, said micromagnets being selected in size from the range of about 25 microns to about 1000 microns, said shell wall surrounding said liquid and forming a barrier wall between said liquid and said binder.
Dependencies are inferred from the claim text.