Hollow particles and use thereof

Abstract

Hollow particles having a shell including at least one layer, wherein the at least one layer contains a vinyl-based resin, and contains a phosphorus atom and/or a sulfur atom.

1 - 10 . (canceled) 
     
     
         11 . Hollow particles comprising
 a shell including at least one layer contains a vinyl-based resin and a phosphorus atom,   wherein said phosphorus atom exhibits a content of 0.2 to 5.00% by mass by fluorescent X-ray analysis, and   wherein said hollow particles have an average particle diameter of 10 to 150 nm.   
     
     
         12 . The hollow particles according to  claim 11 ,
 wherein when a ratio α (absorbance ratio α: A810/A1720) between absorbance at 810 cm −1  (A810) and absorbance at 1720 cm −1  (A1720) is calculated from an infrared absorption spectrum obtained by measuring said hollow particles by ATR-FTIR, said hollow particles exhibit an absorbance ratio α of 0.015 to 0.50.   
     
     
         13 . The hollow particles according to  claim 11 ,
 wherein said vinyl-based resin is an organic-inorganic hybrid vinyl-based resin containing a silicon component.   
     
     
         14 . The hollow particles according to  claim 11 ,
 wherein said hollow particles have a surface treated with a silane-based coupling agent represented by the following general formula (I):   
       
         
           
           
               
               
           
         
         wherein R 1 s represent respectively independently a substituted or unsubstituted alkyl group having 1 to 6 carbon atoms, a substituted or unsubstituted alkoxyalkyl group having 2 to 4 carbon atoms, or a substituted or unsubstituted phenyl group; R 2 s represent respectively independently a substituted or unsubstituted alkyl group having 1 to 6 carbon atoms, a substituted or unsubstituted alkoxyalkyl group having 2 to 4 carbon atoms, or a substituted or unsubstituted phenyl group; R 3  represents a divalent organic group having 1 to 30 carbon atoms; R 4  represents a hydrogen atom or a methyl group; and m represents an integer of 0 to 2. 
       
     
     
         15 . A dispersion liquid comprising the hollow particles according to  claim 11 . 
     
     
         16 . A coating agent comprising the hollow particles according to  claim 11 . 
     
     
         17 . A heat-insulating film comprising the hollow particles according to  claim 11 . 
     
     
         18 . A laminate comprising at least a substrate, and a cured resin layer containing the hollow particles according to  claim 11 ,
 wherein when subjected to a bend test (cylindrical mandrel method) described in JIS K5600-5-1: 1999, said cured resin layer has such a bending resistance that said cured resin layer begins to crack at a mandrel diameter of 8 mm or less.   
     
     
         19 . Hollow particles comprising
 a shell including at least one layer contains a vinyl-based resin and a sulfur atom,   wherein said sulfur atom exhibits a content of 0.2 to 5.00% by mass by fluorescent X-ray analysis, and   wherein said hollow particles have an average particle diameter of 10 to 150 nm.   
     
     
         20 . The hollow particles according to  claim 19 ,
 wherein when a ratio α (absorbance ratio α: A810/A1720) between absorbance at 810 cm −1  (A810) and absorbance at 1720 cm −1  (A1720) is calculated from an infrared absorption spectrum obtained by measuring said hollow particles by ATR-FTIR, said hollow particles exhibit an absorbance ratio α of 0.015 to 0.50.   
     
     
         21 . The hollow particles according to  claim 19 ,
 wherein said vinyl-based resin is an organic-inorganic hybrid vinyl-based resin containing a silicon component.   
     
     
         22 . The hollow particles according to  claim 19 ,
 wherein said hollow particles have a surface treated with a silane-based coupling agent represented by the following general formula (I):   
       
         
           
           
               
               
           
         
         wherein R 1 s represent respectively independently a substituted or unsubstituted alkyl group having 1 to 6 carbon atoms, a substituted or unsubstituted alkoxyalkyl group having 2 to 4 carbon atoms, or a substituted or unsubstituted phenyl group; R 2 s represent respectively independently a substituted or unsubstituted alkyl group having 1 to 6 carbon atoms, a substituted or unsubstituted alkoxyalkyl group having 2 to 4 carbon atoms, or a substituted or unsubstituted phenyl group; R 3  represents a divalent organic group having 1 to 30 carbon atoms; R 4  represents a hydrogen atom or a methyl group; and m represents an integer of 0 to 2. 
       
     
     
         23 . A dispersion liquid comprising the hollow particles according to  claim 19 . 
     
     
         24 . A coating agent comprising the hollow particles according to  claim 19 . 
     
     
         25 . A heat-insulating film comprising the hollow particles according to  claim 19 . 
     
     
         26 . A laminate comprising at least a substrate, and a cured resin layer containing the hollow particles according to  claim 19 ,
 wherein when subjected to a bend test (cylindrical mandrel method) described in JIS K5600-5-1: 1999, said cured resin layer has such a bending resistance that said cured resin layer begins to crack at a mandrel diameter of 8 mm or less.