Hydrosilyation cured silicone resin containing colloidal silica and a process for producing the same

The invention relates to a process for producing a cured silsesquioxane resin having high fracture toughness and strength without loss of elastic modulus and glass transition temperature. With more particularity the invention relates to a cured silsequioxane resin having colloidal silica having a su...

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Bibliographic Details
Main Authors Li, Zhongtao, McGarry, Frederick J, Katsoulis, Dimitris E, Keryk, John R, Bergstrom, Debora F, Kwan, Kermit S, Zhu, Bizhong
Format Patent
LanguageEnglish
Published 11.11.2003
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Summary:The invention relates to a process for producing a cured silsesquioxane resin having high fracture toughness and strength without loss of elastic modulus and glass transition temperature. With more particularity the invention relates to a cured silsequioxane resin having colloidal silica having a surface coating formed thereon dispersed within the silsesquioxane resin. A hydrosilylation reaction curable composition including a silsesquioxane polymer, a cross-linking compound, a hydrosilylation reaction catalyst and colloidal silica having a surface coating formed thereon. The curable composition is cured to form a cured resin having high fracture toughness and strength without the loss of elastic modulus and glass transition temperature.