Porous rigid resins and process of preparation

Details Porous rigid resins and process of preparation Porous rigid resins and process of preparation

1988-09-26

1991-09-10

Foelak, Morton

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521 91, 521 92, 521122, 521123, 521146, 521149, 521150, C08J 926

Patent

active

050474383

ABSTRACT:
Porous, rigid resin particles are prepared having a predetermined particle size distribution, surface area and porosity by polymerizing in the pores of porous inorganic template particles a reaction mixture comprising monovinyl monomers, polyvinyl crosslinking monomers and a polymerization initiator in a liquid medium in which the monomers and initiator are phase separable and extractable therefrom into the pores of the template particles. The extracted mixture is polymerized in the pores of the template particles, and the template particles are removed without destruction of the polymerizate. The isolated polymerizate mirrors the characteristics of the template particles. The surface of the polymerizate may be modified in various ways to contain desired functionality. The particles of the invention are useful in chromatography, adsorption, ion exchange, and in catalysis.

REFERENCES:
patent: 1113630 (1914-10-01), Hofmann et al.
patent: 3007896 (1961-11-01), Clasen
patent: 4063912 (1977-12-01), Neely et al.
patent: 4263268 (1981-04-01), Knox et al.
Iler--"The Chemistry of Silica", pp. 680-702.

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