Ionic dye-based electrorheological materials

Details Ionic dye-based electrorheological materials Ionic dye-based electrorheological materials

1991-12-13

1994-04-26

Skane, Christine

Compositions

Heat-exchange, low-freezing or pour point, or high boiling...

Organic components

252 73, 252 75, 252 76, 252572, 8521, C10M16904, C10M17100

Patent

active

053064380

ABSTRACT:
An electrorheological material containing a carrier fluid and an ionic dye particle component which is an ionically charged compound based on or derived from a conjugated hydrocarbon compound. A preferred ionically charged compound contains at least one aromatic nucleus that has been sulfonated and/or carboxylated to form a negatively charged system which has, in turn, been offset with a positive ion. The electrorheological material is useful for creating aesthetic visual effects and responds quickly to an electric field.

REFERENCES:
patent: 3484162 (1969-12-01), Clark
patent: 3553708 (1971-01-01), Carreira et al.
patent: 4554555 (1985-11-01), Aruga et al.
patent: 4687589 (1987-08-01), Block et al.
patent: 4962039 (1990-10-01), Benedyk
patent: 5061388 (1991-10-01), Nader
patent: 5118431 (1992-06-01), Nader

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