Method of making porous hydrophilic-lipophilic copolymeric powde

Details Method of making porous hydrophilic-lipophilic copolymeric powde Method of making porous hydrophilic-lipophilic copolymeric powde

1989-05-15

1990-08-14

Hoke, Veronica P.

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521 61, 521 63, 521 64, 521119, 521146, 521147, 521150, C08F 3602

Patent

active

049488180

ABSTRACT:
A precipitation polymerization process for producing a macroporous cross-linked copolymeric lattice, capable of adsorbing hydrophilic and lipophilic fluids, in which process there is copolymerized at least one monounsaturated monomer and at least one polyunsaturated monomer in the presence of an organic liquid which is a solvent for the monomers but not for the copolymer, initiating the copolymerization of the monomers by means of a free radical generating catalytic compound, precipitating a copolymer in the solvent in the form of a powder, and forming a dry powder by removing the solvent from the precipitated copolymeric powder. One monomer is a hydrophilic compound and the other monomer is a lipophilic compound.

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