US Patent Application No: 2012/0163,987

Number of patents in Portfolio can not be more than 2000

HIGH STRENGTH GLASS COMPOSITION AND FIBERS

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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Glass compositions and high-modulus, and high-strength glass fibers made therefrom, being capable of economical, continuous processing and suitable for the production of high-strength and/or high stiffness, low-weight composites, such as windturbine blades, the glass composition comprises the following constituents in the limits defined below, expressed as weight percentages: between about 56 to about 61 weight percent SiO2; between about 16 to about 23 weight percent Al2O3, wherein the weight percent ratio of SiO2/Al2O3 is between about 2 to about 4; between about 8 to about 12 weight percent MgO; between about 6 to about 10 weight percent CaO, wherein the weight percent ratio of MgO/CaO is between about 0.7 to about 1.5; between about 0 to about 2 weight percent Na2O; less than about 1 weight percent Li2O; and total residual transition metal oxides of less than about 2 weight percent.

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Patent Owner(s)

Patent OwnerAddressTotal Patents
AGY HOLDING CORP.AIKEN, SC7

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Cited Art Landscape

Patent Info (Count) # Cites Year
 
SAINT-GOBAIN ADFORS (1)
* 8,476,175 Glass strands and composites having an organic and/or inorganic matrix containing said strands 1 2009
 
AVANSTRATE INC. (1)
* 2009/0143,214 Glass composition 12 2006
 
CHONGQING POLYCOMP INTERNATIONAL CORPORATION (1)
* 2012/0129,678 HIGH-INTENSITY AND HIGH-MODULUS GLASS FIBER 2 2010
 
OCV INTELLECTUAL CAPITAL, LLC (2)
* 2010/0162,772 METHOD OF MANUFACTURING HIGH STRENGTH GLASS FIBERS IN A DIRECT MELT OPERATION AND PRODUCTS FORMED THERE FROM 7 2009
* 2012/0135,849 MODULUS, LITHIUM FREE GLASS 0 2010
* Cited By Examiner

Patent Citation Ranking

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Patent Info (Count) # Cites Year
 
Nitto Boseki Co., Ltd. (2)
* 8,841,222 Glass fiber 0 2011
* 2013/0210,602 Glass Fiber 0 2011
* Cited By Examiner