Process for producing cellulose microcapsules, and resulting cel

Details Process for producing cellulose microcapsules, and resulting cel Process for producing cellulose microcapsules, and resulting cel

1977-02-08

1978-10-31

Lovering, Richard D.

Compositions

Preservative agents

Anti-corrosion

424 22, 424 35, B01J 1302

Patent

active

041233816

ABSTRACT:
A cellulose microcapsule having absorbing capacity, consisting of outer semipermeable barrier layer of cellulose and absorbent powders dispersed within inner cellulose gel matrix is prepared by dispersing adsorbent powders in a solution of cellulose dissolved in a solvent which is not adversely affected by the adsorbing capacity of adsorbent powders and capable of dissolving cellulose, then forming the dispersion into droplets and finally precipitating cellulose on the droplets. It is excellent in resistance to chemicals such as acids, alkalis or organic solvents and is useful for various purposes.

REFERENCES:
patent: 2206975 (1940-07-01), Ripper
patent: 2951753 (1960-09-01), Groves
patent: 3522346 (1970-07-01), Chang
patent: 3561003 (1971-02-01), Lanham et al.
patent: 3664963 (1972-05-01), Pasin
patent: 3725113 (1973-04-01), Chang

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