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
2011-04-19
2011-04-19
Choi, Ling-Siu (Department: 1762)
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...
C525S391000
Reexamination Certificate
active
07928156
ABSTRACT:
A composition is disclosed comprising a styrenic first polymer, nanoclay, and an emulsifier compound, which can be blended with an additional polymer. A nanocomposite exhibits improved heat resistant properties and stiffness. In one embodiment, the additional polymer is poly(phenylene ether). An article and a method for the preparation a nanocomposite are also disclosed. In one embodiment, the process of obtaining a nanocomposite comprises emulsion polymerizing styrenic monomers in the presence of an aqueous dispersion of nanoclay and emulsifier compound, wherein an aqueous mixed dispersion comprising styrenic polymer and nanoclay is formed; coagulating the aqueous mixed dispersion with a coagulating agent to form a coagulated mixed dispersion comprising nanoclay and styrenic polymer; solidifying the coagulated mixed dispersion to form a polymeric clay concentrate comprising the nanoclay and the styrenic polymer as a carrier resin; and mixing the polymeric nanoclay concentrate, directly or indirectly with an additional polymer to form a nanocomposite.
REFERENCES:
patent: 7250477 (2007-07-01), Guo et al.
patent: 2006/0255494 (2006-11-01), Ohtomo et al.
patent: 2007/0079748 (2007-04-01), Ahmed et al.
Translation of KR 1020060053387, Dec. 20, 2007.
M. Okamoto, Recent advances in polymer/layered silicate nanocomposites: an overview from science to technology, Materials Science and Technology, 2006, vol. 22, No. 7, 756-779.
Myoung Whan Noh, Dong Choo Lee, Synthesis and characterization of PS-clay nanocomposite by emulsion polymerization, Polymer Bulletin 42, 619-626 (1999).
KR Unexamined Patent Publication, Application No. 10-2006-0053387, application date: Jun. 14, 2006, Iventor Sang-Won Lee, Translation, 10 pages.
Cantor & Colburn LLP
Chin Hui
Choi Ling-Siu
Sabic Innovative Plastics IP B.V.
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