Encapsulation process and capsules produced thereby

Details Encapsulation process and capsules produced thereby Encapsulation process and capsules produced thereby

1978-07-07

1981-08-25

Lovering, Richard D.

Chemistry: fertilizers

Processes and products

Forms or conditioning

71 64F, 71100, 71DIG1, 252316, 264 4, 424 32, 424206, 424278, 424DIG8, A01N 2528, A01N 4300, B01J 1302

Patent

active

042857201

ABSTRACT:
Encapsulation process to prepare encapsulated water-immiscible material employing an organic polyisocyanate intermediate to form a polyurea capsule enclosure around a water-immiscible material dispersed in an aqueous continuous phase comprising the steps of heating the dispersion or adding a catalyst, and optionally adjusting the pH to a value between 0 and 14.

REFERENCES:
patent: 1112755 (1914-10-01), Bergstrom
patent: 2540210 (1951-02-01), Nikitin
patent: 2957804 (1960-10-01), Shuyler
patent: 3576760 (1971-04-01), Gould et al.
patent: 3577515 (1971-05-01), Vandegaer
patent: 3701759 (1972-10-01), Lee et al.
patent: 3726804 (1973-04-01), Matsukawa et al.

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