Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Compositions to be polymerized by wave energy wherein said...
Reexamination Certificate
2005-02-15
2005-02-15
Seidleck, James (Department: 1711)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Compositions to be polymerized by wave energy wherein said...
C522S086000, C522S087000, C522S088000, C522S089000, C522S090000, C522S096000, C522S097000, C522S100000, C522S103000, C522S173000, C522S174000, C522S179000, C522S180000, C428S402000
Reexamination Certificate
active
06855746
ABSTRACT:
This invention provides a process for the production of molded particles for enzyme- or microbial cell-immobilization which is characterized in that:an aqueous liquid composition which comprises:(A) an unsaturated group-containing urethane resin which is obtained by making a compound (a) having one hydroxyl group and one epoxy group in a molecule react with a compound (b) having one carboxyl group and one ethylenically unsaturated group in a molecule, and further making thus obtained unsaturated group-containing diol (c) react with polyisocyanate compound (d);(B) a polymerization initiator; and(C) water-soluble macromolecular polysaccharides which are capable of gelation by contact with metal ion;is gelatinized, in an aqueous medium which contains metal ion, to be particulate gel, which is then subjected to photopolymerization and/or thermopolymerization by which to cause the crosslinking reaction of ethylenically unsaturated group in said particulate gel.
REFERENCES:
patent: 6086795 (2000-07-01), Hatton
Miyagawa Kenji
Seko Kenji
Yoshitake Junya
Kansai Paint Co. Ltd.
McClendon Sanza L.
Seidleck James
Wenderoth , Lind & Ponack, L.L.P.
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