US2018179337A1PendingUtilityA1

Composite of silicon oxide nanoparticles and silsesquioxane polymer, method for producing same, and composite material produced using composite thereof

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Assignee: YOSHIDA NAOFUMIPriority: Dec 21, 2012Filed: Feb 21, 2018Published: Jun 28, 2018
Est. expiryDec 21, 2032(~6.4 yrs left)· nominal 20-yr term from priority
Inventors:Naofumi YoshidaYuji TashiroDaishi YokoyamaToshiaki Nonaka
C08G 77/16C08K 2201/011C08K 3/36C08G 77/04C08G 77/08C08G 77/045C09D 183/04
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Claims

Abstract

[Problem] An object of the present invention is to provide a composite of silicon oxide nanoparticles and a silsesquioxane polymer, from which a cured film having a low refractive index can be formed inexpensively. [Means for Solution] Provided are a method of producing a composite of silicon oxide nanoparticles and a silsesquioxane polymer, the method comprising reacting a silsesquioxane polymer having a silanol group at a terminal or a silane monomer with silicon oxide nanoparticles having a hydroxyl group or an alkoxy group on the surface in a mixed solvent of an aqueous solvent and an organic solvent in the presence of a phase transfer catalyst, and a composite produced by the method.

Claims

exact text as granted — not AI-modified
1 - 9 . (canceled) 
     
     
         10 . A silicon oxide-containing composite material which is a porous material comprising pores formed therein, obtained by heat-curing a composite in the air or in an inert atmosphere, at a temperature of not lower than 150° C., wherein the composite is a composite of silicon oxide nanoparticles and a silsesquioxane polymer, and wherein said composite is obtained by reacting a silsesquioxane polymer having a silanol group at a terminal or a silane monomer with silicon oxide nanoparticles having a hydroxyl group or an alkoxy group on the surface in a mixed solvent of an aqueous solvent and an organic solvent in the presence of a phase transfer catalyst. 
     
     
         11 . (canceled) 
     
     
         12 . An electron device, comprising the silicon oxide-containing composite material according to  claim 10  as an interlayer film, a refractive index control film, an anti-reflection film or a protective film. 
     
     
         13 . (canceled) 
     
     
         14 . The composite according to  claim 10 , wherein said silsesquioxane polymer comprises a repeating unit selected from the group consisting of [R 1 SiO 1.5 ] (wherein R 1  is a group selected from the group consisting of hydrogen, an alkyl group, an aryl group and an alkenyl group) and [SiO 2 ], and said silane monomer is selected from the group consisting of R 1 Si(OR 2 ) 3  and Si(OR 2 ) 4  (wherein R 2  is a group selected from the group consisting of hydrogen, an alkyl group, an aryl group and an alkenyl group). 
     
     
         15 . The composite according to  claim 10 , wherein said silsesquioxane polymer has a weight-average molecular weight of 500 to 20,000. 
     
     
         16 . The composite according to  claim 10 , wherein said composite has a transmittance of >95% at a wavelength of 400 nm. 
     
     
         17 . The composite according to  claim 10 , wherein said silicon oxide nanoparticles have an average particle size of 5 to 200 nm. 
     
     
         18 . The composite according to  claim 10 , wherein said aqueous solvent is water or a mixed solvent of water and an alcohol. 
     
     
         19 . The composite according to  claim 10 , comprising said silicon oxide nanoparticles in an amount of 5 to 90% by weight based on the total amount of said composite. 
     
     
         20 . The composite according to  claim 10 , comprising said phase transfer catalyst in an amount of 2 to 50% by mol based on the total amount of said composite.

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