Particles, particle dispersion, particle-dispersed resin composition, producing method therefor, resin molded article, producing method therefor, catalyst particles, catalyst solution, catalyst composition, catalyst molded article, titanium complex, titanium oxide particles and producing method therefor

Abstract

Organic-inorganic composite particles that can be dispersed in a solvent and/or a resin as primary particles having an organic group on the surface of inorganic particles, the organic-inorganic composite particles having negative birefringence.

1 . A particle-dispersed resin composition comprising a resin and organic-inorganic composite particles having an organic group on the surface of inorganic particles,
 wherein the organic-inorganic composite particles have at least a configuration that does not allow the inorganic particles to contact with each other by steric hindrance of the organic group and are dispersed as primary particles in the resin.   
     
     
         2 . The particle-dispersed resin composition according to  claim 1 , wherein the resin has a functional group, and the organic group and the functional group both have a hydrophilic group or a hydrophobic group. 
     
     
         3 . The particle-dispersed resin composition according to  claim 1 , wherein the resin contains a highly oriented resin. 
     
     
         4 . The particle-dispersed resin composition according to  claim 1 , wherein the organic group contains a plurality of homologous organic groups. 
     
     
         5 . The particle-dispersed resin composition according to  claim 1 , wherein the organic group contains a plurality of heterologous organic groups. 
     
     
         6 . A particle-dispersed resin molded article molded from a particle-dispersed resin composition comprising a resin and organic-inorganic composite particles having an organic group on the surface of inorganic particles,
 wherein the organic-inorganic composite particles have at least a configuration that does not allow the inorganic particles to contact with each other by steric hindrance of the organic group and are dispersed as primary particles in the resin.   
     
     
         7 . A method for producing a particle-dispersed resin composition, the method comprising:
 blending a resin and organic-inorganic composite particles having an organic group on the surface of inorganic particles such that the organic-inorganic composite particles are dispersed as primary particles in the resin by steric hindrance of the organic group.   
     
     
         8 . The method for producing a particle-dispersed resin composition according to  claim 7 , wherein the organic-inorganic composite particles are produced in a hot solvent. 
     
     
         9 . The method for producing a particle-dispersed resin composition according to  claim 7 , wherein the organic-inorganic composite particles are produced in hot high pressure water. 
     
     
         10 . A method for producing a particle-dispersed resin molded article, the method comprising:
 producing a particle-dispersed resin molded article by molding a particle-dispersed resin composition obtained by blending a resin and organic-inorganic composite particles having an organic group on the surface of inorganic particles such that the organic-inorganic composite particles are dispersed as primary particles in the resin by steric hindrance of the organic group.