POLYMERIZABLE AND POLYMER COMPOSITIONS FOR AN OPTICAL MATERIAL HAVING A REFRACTIVE INDEX OF 1.54-1.58, OPHTHALMIC LENS AND MANUFACTURING METHOD

The invention relates to a polymerizable composition intended to form a polymer composition for an optical material, such as a substrate of an ophthalmic lens, to this polymer composition obtained by polymerizing the polymerizable composition and having a refractive index of from 1.54 to 1.58, to an...

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Bibliographische Detailangaben
Hauptverfasser:	FROMENTIN, Pierre, MARION, Laurie
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	CHEMISTRY COMPOSITIONS BASED THEREON MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS ORGANIC MACROMOLECULAR COMPOUNDS PHYSICS THEIR PREPARATION OR CHEMICAL WORKING-UP
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Beschreibung
Zusammenfassung:	The invention relates to a polymerizable composition intended to form a polymer composition for an optical material, such as a substrate of an ophthalmic lens, to this polymer composition obtained by polymerizing the polymerizable composition and having a refractive index of from 1.54 to 1.58, to an ophthalmic lens comprising this polymer composition and to a method for manufacturing this optical material. The polymerizable composition has a refractive index of from 1.54 to 1.58, the polymerizable composition comprising: - at least one non-aromatic polyisocyanate compound comprising at least two -NCO groups; - at least one non-aromatic polythiol compound comprising at least two -SH groups; - at least one polyol, According to the invention, said at least one polyol comprises a polyether polyol.