Microcapsules having a wall of inorganic substance and process f

Details Microcapsules having a wall of inorganic substance and process f Microcapsules having a wall of inorganic substance and process f

1979-03-29

1981-05-19

Lovering, Richard D.

Compositions

Preservative agents

Anti-corrosion

15424, 106 20, 106308B, 156283, 252182, 252192, 252193, 252364, 252428, 252477R, 252522A, 422 42, 422 43, 426 98, 426650, B01J 1302

Patent

active

042684110

ABSTRACT:
A process for preparing microcapsules comprising a core of highly viscous liquid substance encapsuled with a wall of an aggregate of finely divided silica powder, which comprises adding the highly viscous liquid substance into a powder bed of the finely divided silica powder under stirring with a cutter. The microcapsules thus obtained have such a structure that the core of highly viscous liquid substance is coated with a wall of an aggregate of the finely divided silica powder and a gelatinized layer formed between the wall and the liquid core substance.

REFERENCES:
patent: 3137630 (1964-06-01), Hecker et al.
patent: 3393155 (1968-07-01), Schutte et al.
patent: 3710510 (1973-01-01), Tully et al.
patent: 3767787 (1973-10-01), Segal
patent: 3790497 (1974-02-01), Sato et al.
patent: 4020005 (1977-04-01), Lang

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