Spherical grains of polyamino acid and production method thereof

Details Spherical grains of polyamino acid and production method thereof Spherical grains of polyamino acid and production method thereof

1989-06-20

1990-08-14

Foelak, Morton

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Cellular products or processes of preparing a cellular...

521 60, 521183, 521189, 528310, 528328, C08J 916

Patent

active

049488163

ABSTRACT:
The present invention provides novel spherical grains of polyamino acid wh can be used as a filler in chromatography, cosmetic powder and the like. The spherical grains can be produced by a method which comprises the steps of preparing a solution of hydrophobic polyamino acid such as poly n-leucine dissolved in an organic solvent; adding the solution to an aqueous medium and agitating said medium so as to obtain a dispersion of the spherical grains of the polyamino acid dispersed in the aqueous medium while evaporating the organic solvent; and taking out the spherical grains of polyamino acid from the dispersion.

REFERENCES:
patent: 2572844 (1951-10-01), MacDonald
patent: 3052655 (1962-09-01), Fox et al.
patent: 3476711 (1969-11-01), Muller et al.
patent: 3749698 (1973-07-01), Lehmann et al.
patent: 3819588 (1974-06-01), Fujimoto et al.
patent: 4334056 (1982-06-01), Meyer et al.

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