PREPARATION OF TRANSPARENT RESIN HAVING HIGH REFRACTIVE INDEX

PURPOSE:To obtain a transparent resin having high refractive index, high impact strength, and low fluctuation of the refractive index, and suitable as various lenses, by melting or melting and solidifying a polymerizable compound having a specific structural formula and solid at normal temperature,...

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Bibliographische Detailangaben
Hauptverfasser:	IIDA NOBUHITO, SAKATA KANJI
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMISTRY COMPOSITIONS BASED THEREON CONTACT LENSES MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS METALLURGY OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS ORGANIC MACROMOLECULAR COMPOUNDS PHYSICS SPECTACLES SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURESAS SPECTACLES THEIR PREPARATION OR CHEMICAL WORKING-UP
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Beschreibung
Zusammenfassung:	PURPOSE:To obtain a transparent resin having high refractive index, high impact strength, and low fluctuation of the refractive index, and suitable as various lenses, by melting or melting and solidifying a polymerizable compound having a specific structural formula and solid at normal temperature, and polymerizing the compound under light irradiation. CONSTITUTION:The objective resin can be produced by (1) melting or melting and solidifying a polymerizable compound of formula (R is H or CH3; X is Cl or Br; n is 1 or 2; m is 1-4) which is a bifunctional monomer solid at normal temperature and generally insoluble in other polymerizable liquid compound at high concentration, (2) filling the compound in various molds, and (3) polymerizing under the radiation of light such as ultraviolet ray, visible light, etc. The polymerization is preferably carried out in the presence of