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    <title>FreshPatents.com: Compositions - USPTO Class 252 Patent Applications Update</title> 
    <link>http://www.freshpatents.com/Compositions-dtnewntc252.php</link> 
    <description>USPTO Class 252 - Compositions</description>
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    <lastBuildDate>Fri, 19 Dec 2008 00:05:06 -0800</lastBuildDate> 
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  		<title>Piezoelectric/electrostrictive porcelain composition and piezoelectric/electrostrictive element</title> 
  		<link>http://www.freshpatents.com/Piezoelectric-electrostrictive-porcelain-composition-and-piezoelectric-electrostrictive-element-dt20081211ptan20080302996.php</link> 
  		<pubDate>Fri, 19 Dec 2008 00:05:06 -0800</pubDate> 
  		<description>A (Li, Na, K)(Nb, Ta)O3 based piezoelectric/electrostrictive porcelain composition obtained by adding a slight amount of a Mn compound to a perovskite type oxide containing Li, Na and K as A-site elements and contains at least Nb out of Nb and Ta as B-site elements, where a ratio of a...</description> 
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  		<title>Snow-melting/antifreezing agents</title> 
  		<link>http://www.freshpatents.com/Snow-melting-antifreezing-agents-dt20081211ptan20080302997.php</link> 
  		<pubDate>Fri, 19 Dec 2008 00:05:06 -0800</pubDate> 
  		<description>A snow-melting/antifreezing agent which comprises potassium silicate as an active ingredient and a snow-melting/antifreezing agent which comprises potassium silicate and a nitrite salt as active ingredients are disclosed. These snow-melting/antifreezing agents may optionally further contain an alkali metal salt and/or a lower alcohol. These snow-melting/antifreezing agents are safe for the...</description> 
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  		<title>Carbon nanoparticle-containing hydrophilic nanofluid with enhanced thermal conductivity</title> 
  		<link>http://www.freshpatents.com/Carbon-nanoparticle-containing-hydrophilic-nanofluid-with-enhanced-thermal-conductivity-dt20081211ptan20080302998.php</link> 
  		<pubDate>Fri, 19 Dec 2008 00:05:06 -0800</pubDate> 
  		<description>The present invention relates to a nanofluid that contains carbon nanoparticles, metal oxide nanoparticles and a surfactant in a thermal transfer fluid. The present invention also relates to processes for producing such a nanofluid with enhanced thermal conductive properties....</description> 
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		<item>
  		<title>Negative active material for rechargeable lithium battery, method of preparing same and rechargeable lithium battery</title> 
  		<link>http://www.freshpatents.com/Negative-active-material-for-rechargeable-lithium-battery-method-of-preparing-same-and-rechargeable-lithium-battery-dt20081211ptan20080302999.php</link> 
  		<pubDate>Fri, 19 Dec 2008 00:05:06 -0800</pubDate> 
  		<description>Disclosed is a negative active material for a rechargeable lithium battery comprising a Si phase, a SiM phase and at least one of a X phase and a SiX phase, wherein each of phases has a crystal grain size of 100 nm and 500 nm. The element M is at...</description> 
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		<item>
  		<title>Display material and automobile member</title> 
  		<link>http://www.freshpatents.com/Display-material-and-automobile-member-dt20081211ptan20080303002.php</link> 
  		<pubDate>Fri, 19 Dec 2008 00:05:06 -0800</pubDate> 
  		<description>A display material or automobile member of the present invention includes at least one cholesteric liquid crystal layer, an optical property of which is changed by an electric field, and the cholesteric liquid crystal layer contains at least one chiral reagent having one or more fluorine atoms, and at least...</description> 
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		<item>
  		<title>Liquid crystal composition and liquid crystal display device</title> 
  		<link>http://www.freshpatents.com/Liquid-crystal-composition-and-liquid-crystal-display-device-dt20081211ptan20080303001.php</link> 
  		<pubDate>Fri, 19 Dec 2008 00:05:06 -0800</pubDate> 
  		<description>wherein R1 and R2 are each independently alkyl having 1 to 12 carbons, alkoxy having from 1 to 12 carbons, alkenyl having 2 to 12 carbons or alkenyl having 2 to 12 carbons, arbitrary hydrogen of which is replaced by fluorine; Z1 is a single bond, ethylene, methyleneoxy or carbonyloxy;...</description> 
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		<item>
  		<title>Monomers, oligomers and polymers comprising thiophene and selenophene</title> 
  		<link>http://www.freshpatents.com/Monomers-oligomers-and-polymers-comprising-thiophene-and-selenophene-dt20081211ptan20080303000.php</link> 
  		<pubDate>Fri, 19 Dec 2008 00:05:06 -0800</pubDate> 
  		<description>The invention relates to novel mono-, oligo- and polymeric compounds comprising thiophene and selenophene, to their use as semiconductors or charge transport materials, in optical, electro-optical or electronic devices, and to optical, electro-optical or electronic devices comprising the novel compounds....</description> 
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		<item>
  		<title>Novel materials for organic electroluminescent devices</title> 
  		<link>http://www.freshpatents.com/Novel-materials-for-organic-electroluminescent-devices-dt20081211ptan20080303003.php</link> 
  		<pubDate>Fri, 19 Dec 2008 00:05:06 -0800</pubDate> 
  		<description>The present invention relates to anthracene derivatives, to the use thereof in organic electroluminescent devices, and to organic electroluminescent devices comprising these compounds....</description> 
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		<item>
  		<title>Method for producing lithium transition metal polyanion powders for batteries</title> 
  		<link>http://www.freshpatents.com/Method-for-producing-lithium-transition-metal-polyanion-powders-for-batteries-dt20081211ptan20080303004.php</link> 
  		<pubDate>Fri, 19 Dec 2008 00:05:06 -0800</pubDate> 
  		<description>This invention relates to a process for producing an improved powder for the positive electrode of lithium ion batteries wherein the powder comprises lithium, vanadium and phosphate. The process includes forming a suspension of the precursors with a high boiling temperature solvent and heating the suspension to a reaction temperature...</description> 
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		<item>
  		<title>Infrared absorbing polymer compositions and films</title> 
  		<link>http://www.freshpatents.com/Infrared-absorbing-polymer-compositions-and-films-dt20081211ptan20080303005.php</link> 
  		<pubDate>Fri, 19 Dec 2008 00:05:06 -0800</pubDate> 
  		<description>The invention provides the use of a dehydrated particulate mineral having a d50 of less than or equal to about 0.5 &#x3bc;m as a filler in combination with a thermoplastic polymer in an infrared absorbing polymer film. The polymer film may be used in greenhouses and the like....</description> 
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  		<title>Flame retardant thermoplastic resinous compostion</title> 
  		<link>http://www.freshpatents.com/Flame-retardant-thermoplastic-resinous-compostion-dt20081211ptan20080303006.php</link> 
  		<pubDate>Fri, 19 Dec 2008 00:05:06 -0800</pubDate> 
  		<description>Disclosed are compositions comprising: a flame retardant composition comprising (i) an acrylonitrile-styrene-acrylate graft copolymer (ASA) or acrylate-modified ASA, (ii) at least one rigid thermoplastic polymer comprising structural units derived from styrene and acrylonitrile; alpha-methylstyrene and acrylonitrile; alpha-methylstyrene, styrene, and acrylonitrile; styrene, acrylonitrile, and methyl methacrylate; alpha-methyl styrene, acrylonitrile, and methyl...</description> 
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