Supports for active entities

Details Supports for active entities Supports for active entities

A - Human Necessities

61

K

A61K 9/16 (2006.01) B01J 20/26 (2006.01) B01J 20/28 (2006.01) B01J 31/06 (2006.01) B01J 35/10 (2006.01) C08J 3/16 (2006.01) C08J 9/28 (2006.01) C12N 11/08 (2006.01)

Patent

CA 2044845

CASE 450 ABSTRACT OF THE DISCLOSURE SUPPORTS FOR ACTIVE ENTITIES A polymeric bead has now been developed to act as a support for other entities having a volume mean diameter of up to 250 microns and having a surface provided with pores which form at least 10% by area of the surface. At least one third of the total area of the pores is provided by pores having a larger size of at least 0.4 micron. A method for the manufacture of such polymeric beads involves using a water-in-oil-in- water emulsion technique in which the amount of water used in the preparation of the aqueous phase is not greater than 125 parts by weight per 265 parts by weight of the mixture of the polyester resin and monomer which is used. The porous beads provide an excellent base for carrying enzymes, bacteria and catalysts species useful in a wide range of applications.

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