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US 10,428,221 B2Granted
Liquid polymerizable composition comprising an anhydride derivative monomer and mineral nanoparticles dispersed therein, and its use to manufacture an optical article
AssigneesEssilor International, Nikon Corporation
InventorGuillaume Cantagrel
Life of this patent
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Abstract
A liquid polymerizable composition including an anhydride derivative monomer with mineral nanoparticles homogeneously dispersed therein, as well as its use for the preparation of a transparent polymeric material having a high refractive index and its use in the optical field.
Claims17
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 selected from the group consisting of aryl, heteroaryl, aryl C1-C6 alkyl and heteroaryl C1-C6 alkyl, R2 and R3, identical or different, are selected from the group consisting of aryl, heteroaryl, aryl C1-C6 alkyl, heteroaryl C1-C6 alkyl, aryloxy, arylthio, aryl C1-C10 alkyloxy, heteroaryl C1-C10 alkyloxy, aryl C1-C10 alkylthio, and heteroaryl C1-C10 alkylthio, and
- mineral nanoparticles homogeneously dispersed in said monomer composition, wherein said mineral nanoparticles consist of a material selected from the group consisting of ZnS, ZrO2, TiO2 and BaTiO3.
3 more elements
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 selected from the group consisting of aryl, heteroaryl, aryl C1-C6 alkyl and heteroaryl C1-C6 alkyl, R2 and R3, identical or different, are selected from the group consisting of aryl, heteroaryl, aryl C1-C6 alkyl, heteroaryl C1-C6 alkyl, aryloxy, arylthio, aryl C1-C10 alkyloxy, heteroaryl C1-C10 alkyloxy, aryl C1-C10 alkylthio, and heteroaryl C1-C10 alkylthio, and
- said process comprising the step of homogeneously dispersing mineral nanoparticles in said monomer composition, wherein said mineral nanoparticles consist of a material selected from the group consisting of ZnS, ZrO2, TiO2 and BaTiO3.
2 more elements
Dependencies are inferred from the claim text.