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Nanocomposites

Patent Abstracts

From 06/09/2014 through 9/8/2011

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Patents with Abstracts

10. 8,389,619 
In-situ nanocomposites from polymerization of an aryloxybenzoic acid in the presence of detonation nanodiamond 
Tan and Wang of the Air Force, prepared nanocomposites by reacting aromatic acids with detonation 2 to 10 nm diamond particles in polyphosphoric acid. Suitable aromatic acids include 3-phenoxybenzoic acid, 4-phenoxybenzoic acid, 3-(2,6-dimethylphenoxy)benzoic acid and 3-phenoxy-2-methylbenzoic acid. 

9. 8,389,626 
Polycarbonate nanocomposites 

Sabic Innovative Plastics IP BV, Netherlands, developed polycarbonate nanocomposites with non-oxidized metal nanoparticles. This is produced from a reaction mixture of a dihydroxy compound, an activated carbonate, a metal precursor, and a solvent.  In-situ polymerization forms a nanocomposite with dispersed  metal nanoparticles. (RDC 3/29/2013)

8. 8,372,908 
Method of fabrication of nanoparticulate composites using monomer stabilization 

Guo and Hahn prepared reinforced resin nanocomposites without surfactants or coupling agents.  They used  monomers for improving the dispersion of nano-sized materials and enhancing the particle/matrix interaction.  Nanoparticles are mixed with a monomer resin to form a mixture, blended with  a catalyst and a promoter and cured to form the polymerized nanocomposite.  The monomers, which serve to stabilize the nanoparticles, are covalently bound onto the nanoparticle surface and copolymerize with non-bound monomers after introduction of a catalyst and a promoter that initiate polymerization. Without any additional surfactant or coupling agent, the resin is chemically bound onto the nanoparticle surface and protects the iron nanoparticles from agglomeration and oxidation.  (RDC 2/19/2013)

7. 8,367,757 
Polymer composite material, optical material including the same, and thermoplastic aromatic polymer 

Imai and Terahara of the National Institute of Advanced Industrial Science Technology, Japan, developed a new thermoplastic aromatic polymer in which metal oxide particles can be uniformly dispersed even without any special functional group in the polymer, and provides a high-performance polymer composite material including the thermoplastic aromatic polymer. A polymer composite material of the present invention includes: a polymer matrix including a thermoplastic aromatic polymer having both an ester bond and an ether bond; and metal oxide particles dispersed in the polymer matrix. (RDC 2/13/2013)

6. 8,242,236 
Elastomeric nanocomposite manufacturing
 
Soisson et al of ExxonMobil, Texas, developed an elastomeric nanocomposite  from an isobutylene-based polymer and a layered nanofiller.  The process of preparing the nanocomposite includes the steps of a) polymerizing isobutylene monomers and multiolefin monomers to produce an isobutylene-based polymer; b) completing at least one mass transfer dependent stage in the process wherein, after completion of the stage and prior to any recovery of the polymer, the polymer is dissolved in a solvent to create a polymer cement; c) contacting the layered nanofiller and the polymer solvent to obtain the nanocomposite; and d) recovering the nanocomposite. The layered nanofiller may be in a slurry prior to contacting with the polymer cement. (RDC 9/4/2012)

5. 8,193,270 
Method of making composites and nanocomposites
 
Marx, Nelson and Cernohous of 3M, Minnesota, developed polymeric composites reinforced with silicates using deprotectable polymers, an activating agent, and layered silicates. The deprotectable polymer is at least partially deprotected to form a composite. The composite may be combined with a polymeric resin to form a nanocomposite. (RDC 6/27/2012)

4. 8,101,680 
Methods of preparing polymer nanocomposites
 
Ramakrishan et al of Sabic Innovative Plastics, Netherlands, formed nanocomposites consisting of a polymer and metal nanoparticles in an extruder.. The nanoparticles are formed in situ in an extruder.  A reaction mixture of a polymer, a metal precursor are extruded in a twin-screw extruder to form the nanocomposite. (RDC 2/24/2012)

3. 8,088,880 
Nanoparticle-modified polyisocyanates  

Nennemann et al of BASF, Germany, developed nanoparticle-modified polyisocyanates for coatings and adhesives.  Polyisocyanates are combined with alkoxysilanes and mixed with surface modified inorganic particles with an average particle size of less than 200 nm.  (RDC 1/30/2012)

2. 8,080,600
Layered mixed-metal phosphonates for high dielectric strength polymer nanocomposites

Barber, III, Ploehn and zur Loye of the University of South Carolina, synthesized mixed metal phosphonates and dispersed their nanoparticles in a polystyrene matrix to form  films with high dielectric constants.  (RDC 1/16/2012)

1. 8,048,947
Nanocomposites and methods for making the same

Gong et al of ExxonMobil, Texas, produced a nanocomposite of a star branched elastomer and a clay. The nanocomposite can be a mixture of a halogenated star branched elastomer and a clay, desirably an exfoliated clay, suitable for use as an air barrier. The halogenated star-branched elastomer can be the primary halogenated elastomer in the blend, and a ratio of the star-branched elastomer to clay can be from 2:1 to 500:1.(RDC 11/4/2011)

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Roger D. Corneliussen
Editor
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Copyright 2012 by Roger D. Corneliussen.
No part of this transmission is to be duplicated in any manner or forwarded by electronic mail without the express written permission of Roger D. Corneliussen
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** Date of latest addition; date of first entry is 5/3/2012.