Polyacrolein microspheres

Details Polyacrolein microspheres Polyacrolein microspheres

1983-08-04

1986-11-11

Kight, John

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

527201, 527202, 527205, 526315, 25230116, 25230136, 435180, 424 82, C08F 254, C08F 1634

Patent

active

046223622

ABSTRACT:
Microspheres of acrolein homopolymers and copolymer with hydrophillic comonomers such as methacrylic acid and/or hydroxyethylmethacrylate are prepared by cobalt gamma irradiation of dilute aqueous solutions of the monomers in presence of suspending agents, especially alkyl sulfates such as sodium dodecyl sulfate. Amine or hydroxyl modification is achieved by forming adducts with diamines or alkanol amines. Carboxyl modification is effected by oxidation with peroxides. Pharmaceuticals or other aldehyde reactive materials can be coupled to the microspheres. The microspheres directly form antibody adducts without agglomeration.

REFERENCES:
patent: 4267234 (1981-05-01), Rembaum
patent: 4424302 (1984-01-01), Block et al.

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