Pearlescent capsules and process for their preparation

Details Pearlescent capsules and process for their preparation Pearlescent capsules and process for their preparation

1977-02-16

1978-09-19

Lovering, Richard D.

Compositions

Preservative agents

Anti-corrosion

252DIG13, 424 34, 424 37, 424 70, B01J 1302

Patent

active

041153154

ABSTRACT:
Minute capsules having a pearlescent effect are obtained by incorporating inorganic pearlescent particles in the capsule walls during the manufacture thereof. Pearlescent particles of mica coated with titanium dioxide are initially dispersed in an oily internal phase material and then flushed into the aqueous coacervation phase upon addition of the internal phase to an encapsulation medium. The pearlescent particles remain embedded in the capsule wall material and provide the pearlescent effect to the finished capsules.

REFERENCES:
patent: 2800457 (1957-07-01), Green et al.
patent: 3520971 (1970-07-01), Benford
patent: 3594326 (1971-07-01), Himmel
patent: 3705102 (1972-12-01), Mast

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