Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Ion-exchange polymer or process of preparing
Reexamination Certificate
2006-10-10
2006-10-10
Pezzuto, Helen L. (Department: 1713)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Ion-exchange polymer or process of preparing
C526S173000, C526S264000, C526S287000, C526S306000, C526S317100, C428S476300, C428S507000, C428S532000, C429S300000, C429S303000
Reexamination Certificate
active
07119126
ABSTRACT:
The polymer matrix material includes a polymerization product of one or more monomers selected from the group of water-soluble, ethylenically-unsaturated acids and acid derivatives, and a crosslinking agent. A quantity of water is used for polymerization, such that the polymer material is swelled to a defined volume upon curing. Optionally, a water-soluble or water-swellable polymer and/or a chemical polymerization initiator.
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Callahan et al. US 2002/0012848 A1 Jan. 31, 2002.
Callahan Robert W.
Chen Muguo
Stevens Mark G.
Crispino Ralph J.
eVionyx, Inc.
Pezzuto Helen L.
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