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
2005-07-05
2005-07-05
Wyrozebski, Katarzyna (Department: 1714)
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...
C524S446000, C524S186000
Reexamination Certificate
active
06914095
ABSTRACT:
The present invention is directed, in part, to improved nanocomposite compositions and processes for preparing same. In one embodiment, there is provided a process for preparing an aqueous nanocomposite dispersion, wherein the process comprises: providing at least one first ethylenically unsaturated monomer; providing an aqueous clay dispersion comprising an at least partially exfoliated aqueous clay having a first exchangeable cation and, optionally, at least one second ethylenically unsaturated monomer; adding a second cation to said aqueous clay dispersion, wherein at least a portion of the second cation exchanges with at least a portion of the first cation to form a modified aqueous clay dispersion; combining the first ethylenically unsaturated monomer and the modified aqueous clay dispersion; and polymerizing at least a portion of the first or second monomer to form the aqueous nanocomposite dispersion wherein at least one of the first or the second monomers comprises a polar monomer.
REFERENCES:
patent: 2531396 (1950-11-01), Carter et al.
patent: 2883356 (1959-04-01), Gluesenkamp
patent: 4739007 (1988-04-01), Okada et al.
patent: 4867902 (1989-09-01), Russell
patent: 4889885 (1989-12-01), Usuki et al.
patent: 5032546 (1991-07-01), Giannelis et al.
patent: 5279663 (1994-01-01), Kaliski
patent: 5780376 (1998-07-01), Gonzales et al.
patent: 5837763 (1998-11-01), Ferraro et al.
patent: 5883173 (1999-03-01), Elpass et al.
patent: 5936023 (1999-08-01), Kato et al.
patent: 5962553 (1999-10-01), Ellsworth
patent: 5973053 (1999-10-01), Usuki et al.
patent: 5993769 (1999-11-01), Pinnavaia et al.
patent: 5998528 (1999-12-01), Tsipursky et al.
patent: 6034164 (2000-03-01), Elspass et al.
patent: 6057035 (2000-05-01), Singh et al.
patent: 2002/0086908 (2002-07-01), Chou et al.
patent: 0846662 (1998-06-01), None
patent: 2314335 (1997-12-01), None
patent: WO 95/14733 (1995-06-01), None
patent: WO 97/00910 (1997-01-01), None
patent: WO 00/29467 (2000-05-01), None
Bandyopadhyay, S; Giannelis E. P.; Proceedings of American CHemical Society, pp. 208-209, Mar. 2000.
Xavier Kornmann, “Synthesis and Characterisation of Thermoset-Clay Nanocomposites”, Lulea University of Technology, S-971 87, Lulea, Sweden, pp. 1-29.
Huang, et al., Synthesis and Characterization of PMMA Nanocomposites by Suspension and Emulsion Polymerization, Department of Polymer Science, University of Akron, 2000, pp. A-D.
Lee, et al., “Characterization of Epoxy-Clay Hybrid Composite Prepared by Emulsion Polymerization”, Journal of Applied Polymer Science, vol. 68, 1998, pp. 1997-2005.
“Soil Colloids: Their Nature and Practical Signifigance”, www.agri.atu.edu/people/Hodgson/Soils/Chapter8.html.
Beall, et al., “Nanocomposites Produced Utilizing A Novel Ion-Dipole Clay Surface Modification”, Chemistry and Technology of Polymer Additives, pp. 266-280.
Beall, et al., Nanocomposites Produced Utilizing a Novel Clay Surface Modification, pp. 1-14.
Ron Dagani, “Putting the “Nano” into Composites”, C&EN Washington, Jun. 7, 1999, pp. 25-37.
Noh, et al., “Synthesis and Characterization of PS-clay Nanocomposite by Emulsion Polymerization”, Polymer Bulletin, 42, (1999), pp. 619-626.
Choi, et al., “Characterization of Emulsion Intercalated Polymer-Na Montmorillonite Nanocomposite”, Department of Polymer Science and Engineering, Inha University, Inchon, South Korea, pp. 247-248.
Noh, et al., “Comparison of Characteristics of SAN-MMT Nanocomposites Prepared by Emulsion and Solution of Polymerization”, Department of Polymer Science and Engineering, Inha University, Inchon, South Korea, pp. 2811-2819.
Noh, et al. “Intercalation of Styrene-Acrylonitrile Copolymer in Layered Silicate by Emulsion Polymerization”, Department of Polymer Science and Engineering, Inha University, Inchon, South Korea, pp. 179-188.
Kim, et al., “Electrorheological Characteristics of Emulsion Polymerized San-Clay Nanocomposite Suspension”, Department of Polymer Science and Engineering, Inha University, Inchon, South Korea, pp. 512-513.
“Ion-Exchange Reaction”, Encyclopedia Britannica, www.britannica.com/bcom/eb/article/printable /2/0,5722, 118752,00.html.
Lorah Dennis Paul
Slone Robert Victor
Rohm and Haas Company
Wyrozebski Katarzyna
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