A - Human Necessities – 24 – B
Patent
A - Human Necessities
24
B
31/1.17, 117/46.
A24B 15/00 (2006.01) A24B 15/28 (2006.01) A24B 15/38 (2006.01) B01J 13/08 (2006.01)
Patent
CA 1113232
Abstract of the Disclosure Microcapsules having a core of an alkaloidal material surrounded by a protective cross-linked polymeric wall are dis- closed. The microcapsules are produced by intermixing a poly- meric wall material with a liquid vehicle to form a solution thereof as a continuous first phase, and mixing the solution with an alkaloidal material. ?he produced admixture is agitated to disperse the alkaloidal material as a plurality of discrete minute core material entities in the first phase, and thereafter, phase separation is induced to separate the polymeric wall mate- rial from the liquid vehicle so that the wall material forms embryonic sheaths about the core material entities. The poly- meric wall material is then cross-linked to form protective walls around each of the core material entities.
323360
Bayless Robert G.
Bradley Hubert Jr.
Davis Danny A.
Hart Ronald L.
Celanese Corporation
Smart & Biggar
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