Poly-.alpha.-amino acid particles, emulsions containing the same

Details Poly-.alpha.-amino acid particles, emulsions containing the same Poly-.alpha.-amino acid particles, emulsions containing the same

1995-09-11

1998-12-22

Reddick, Jody M.

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

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

524602, 524606, 524608, 524808, 524827, 524850, 524879, 424489, 424497, 526258, 526260, 528271, 528292, 528328, C08L 3700

Patent

active

058521097

ABSTRACT:
Solid poly-.alpha.-amino acid particles are obtained by preparing an oil-in-water emulsion from water and an organic solvent having a water solubility of 10 g/100 ml or less, and polymerizing an .alpha.-amino acid-N-carboxy anhydride by emulsion polymerization in the oil-in-water emulsion, or by polymerizing an .alpha.-amino acid-N-carboxy anhydride in water in the presence of an emulsifier and an initiator. Hollow particles can be obtained by adding a poor solvent for the poly-.alpha.-amino acid to the poly-.alpha.-amino acid particles and removing the solvents. These poly-.alpha.-amino acid particles are useful as a novel raw materials for coating on papers, rubbers and fibers, for encapsulating cosmetics, drugs, agricultural chemicals and fertilizers, and as particles for diagnostic reagents.

REFERENCES:
patent: 3658831 (1972-04-01), Fujimoyo et al.
patent: 4525495 (1985-06-01), Dorman et al.
patent: 4694044 (1987-09-01), Kiniwa
patent: 4840975 (1989-06-01), Hirayama et al.
patent: 4999386 (1991-03-01), Oakes et al.

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