Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – At least one aryl ring which is part of a fused or bridged...
Reexamination Certificate
2005-05-31
2005-05-31
Wu, David W. (Department: 1713)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
At least one aryl ring which is part of a fused or bridged...
C524S800000, C524S815000, C524S832000, C524S836000, C524S807000, C524S560000, C524S555000, C524S567000, C524S571000
Reexamination Certificate
active
06900262
ABSTRACT:
The present invention generally provides a method for producing an exfoliated nanocomposite. The method involves charging to water, as the continuous phase, monomers, polymerizable surfactant, and water-soluble initiator. The monomers are allowed to polymerize under agitation to form an emulsion of polymers, and the polymerizable surfactant is bound to the polymers so formed, with an ionic end of the polymerizable surfactant extending from the polymers to provide surface charges. Thereafter, a suspension of nanofillers in water is charged to the emulsion. The nanofillers are oppositely charged from the ionic end of the polymerizable surfactant such that they electrostatically bind to the polymers within the emulsion. The water is subsequently decanted to produce a nanocomposite with an exfoliated structure.
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Lee et al. J. Appl. Polym. Sci. 1996, 61, 1117-1122.
Brittain William J.
Huang Xinyu
Lee Rip A.
Roetzel & Andress
The University of Akron
Wu David W.
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