Liquid polymerizable composition comprising an anhydride derivative monomer and mineral nanoparticles dispersed therein, and its use to manufacture an optical article

A liquid polymerizable composition comprising:

• a liquid monomer composition containing a monomer of formula (I):
• wherein:
• R and R′, identical or different, represent a hydrogen atom or a methyl group,
• X is —O—, —S—, —NR1- or —CR2R3-,
• R1 is chosen from aryl, heteroaryl, aryl C1-C6alkyl or heteroaryl C1-C6alkyl
• R2 and R3, identical or different, are chosen from, aryl, heteroaryl, aryl C1-C6alkyl, heteroaryl C1-C6alkyl, aryloxy, arylthio, aryl C1-C10alkyloxy, heteroaryl C1-C10alkyloxy, aryl C1-C10alkylthio, or heteroaryl C1-C10alkylthio, and
• mineral nanoparticles homogeneously dispersed in said monomer composition.

A process for increasing the refractive index of a polymeric material obtained by thermal and/or UV curing of a liquid monomer composition containing a monomer of formula (I):

• wherein:
• R and R′, identical or different, represent a hydrogen atom or a methyl group,
• X is —O—, —S—, —NR1- or —CR2R3-, R1 is chosen from aryl, heteroaryl, aryl C1-C6alkyl or heteroaryl C1-C6alkyl
• R2 and R3, identical or different, are chosen from, aryl, heteroaryl, aryl C1-C6alkyl, heteroaryl C1-C6alkyl, aryloxy, arylthio, aryl C1-C10alkyloxy, heteroaryl C1-C10alkyloxy, aryl C1-C10alkylthio, or heteroaryl C1-C10alkylthio, and
• said process comprising the step of homogeneously dispersing mineral nanoparticles in said monomer composition.