Patent ID: 7897712

Claim:
An organic-inorganic hybrid composition comprising inorganic fine particles having a refractive index of from 1.90 to 3.00, and a thermoplastic resin having a functional group capable of forming a chemical bond with the inorganic fine particles only at one or more polymer chain terminals and having a number average molecular weight of from 1,000 to 500,000, wherein the functional group capable of forming a chemical bond with the inorganic fine particles is a functional group selected from the group consisting of —SO 3 H, —OSO 3 H, and —Si(OR 5 ) m R 6 3-m , wherein R 1 , R 2 , R 3 , R 4 , R 5 and R 6 each independently represents a hydrogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkenyl group, a substituted or unsubstituted alkynyl group or a substituted or unsubstituted phenyl group, and m is an integer of from 1 to 3, or its salt.