1
David A Ley, Laura J Hiscock, Michael T Cooke: Process for the preparation of porous polymer beads. American Cyanamid, Steven Flynn, July 10, 1990: US04940734 (65 worldwide citation)

Isotropic porous polymer beads having controllable surface porosity and large pore diameters from about 0.002 to about 5 microns are produced from solutions of an acrylonitrile polymer or a copolymer by a thermally-induced phase separation process including intensively shearing the polymer solution ...


2
Michael T Cooke, Laura J Hiscock: Porous polymer beads and process. Cytec Technology, Frank M Van Riet, May 24, 1994: US05314923 (25 worldwide citation)

Isotropic porous polymer beads having a high surface porosity and large pore diameters from about 0.002 to about 5 microns are produced from solutions of a polymer or a copolymer by a thermally-induced phase separation process. The use of mixed solvent-non-solvent combinations as solvents for the po ...


3
Michael T Cooke, Laura J Hiscock: Porous polyacrylonitrile beads and process for their production. American Cyanamid, Steven Flynn, September 10, 1991: US05047437 (14 worldwide citation)

Isotropic porous polymer beads having a high surface porosity and large pore diameters from about 0.002 to about 5 microns are produced from solutions of an acrylonitrile polymer or a copolymer by a thermally-induced phase separation process. The use of mixed solvent-non-solvent combinations as solv ...


4
Laura J Hiscock, Bruce H Baretz, Richard L Webb: Electron beam and x-ray resists. American Cyanamid Company, Steven H Flynn, September 19, 1989: US04868241 (1 worldwide citation)

Polymers are disclosed comprising a poly(vinyl alcohol) backbone with the following groups or combination of groups bound to the backbone: