Compositions – Preservative agents – Anti-oxidants or chemical change inhibitants
Patent
1973-04-09
1976-02-03
Shaver, Paul F.
Compositions
Preservative agents
Anti-oxidants or chemical change inhibitants
252426, 252428, 252477R, B01J 3102
Patent
active
039363945
ABSTRACT:
The present invention is to provide a method of producing an adsorbent composed of micro-fibrils, comprising the steps of mixing two synthetic polymers in a mixing ratio of 20/80 - 80/20, both of said polymers being incompatible with each other when they are intimately mixed, subjecting the mixture in molten state to an extrusion molding to shape the article in the form of threads, ropes or films where at least one of the polymers assumes the forms of micro-fibrils, and thereafter treating the shaped article with a solvent which is incapable of dissolving or decomposing one polymer but capable of dissolving or decomposing the other constituent polymer.
The polymer adsorbent obtained by the above method is characterized by superior adsorbing activity and high treating efficiency and can be used for a wide range of purpose of adsorption.
REFERENCES:
patent: 3416993 (1968-12-01), Heusser et al.
patent: 3442819 (1969-05-01), Herbert
patent: 3538020 (1970-11-01), Heskett et al.
patent: 3551351 (1970-12-01), Murray et al.
patent: 3617506 (1971-11-01), Cole et al.
patent: 3682594 (1972-08-01), Fish
Akimoto Norio
Fukuma Noboru
Imamura Kazuyoshi
Ishikawa Tatsuo
Kusunose Tetsuhiro
Asahi Kasei Kogyo Kabushiki Kaisha
Shaver Paul F.
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