Microcapsules containing inorganic colloids and method for...

Details Microcapsules containing inorganic colloids and method for... Microcapsules containing inorganic colloids and method for...

B - Operations, Transporting

01

J

B01J 13/16 (2006.01) B01J 13/02 (2006.01) B01J 13/18 (2006.01)

Patent

CA 2080424

ABSTRACT OF THE DISCLOSURE Incorporation of inorganic colloidal particles into an encapsulation dispersion results in microcapsules having polymer shell walls further comprising colloidal inorganic particles. Capsules prepared in this manner have been found to be smaller in size, have a narrower size distribution, and exhibit decreased shell wall permeability. Capsules prepared using these colloidal particle dispersions are particularly useful in carbonless imaging constructions such as those containing a fill solution of a color precursor in a hydrophobic solvent and form deeply colored images when combined with a color developer.

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