COMPOSITION FOR USE AS OPTICAL MATERIAL
The purpose of the present invention is to appropriately control the rate of polymerization of a composition in which a thiol compound and an isocyanate compound are added to an episulfide compound and thereby provide an optical material which has high transparency. This composition for use as optic...
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| creator | KARIYAZONO Kazuki TAKEMURA Kouhei AOKI Takashi FURUKAWA Kikuo |
| description | The purpose of the present invention is to appropriately control the rate of polymerization of a composition in which a thiol compound and an isocyanate compound are added to an episulfide compound and thereby provide an optical material which has high transparency. This composition for use as optical material comprises (a) an episulfide compound, (b) an isocyanate compound, (c) a thiol compound, and (d) a benzyl halide compound represented by formula (1):wherein: X is a halogen; L is selected from the group consisting of a hydrogen atom, a methyl group, a halogen, a mercaptomethyl group, and an isocyanate methyl group; and n is 1 or 2. |
| format | Patent |
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This composition for use as optical material comprises (a) an episulfide compound, (b) an isocyanate compound, (c) a thiol compound, and (d) a benzyl halide compound represented by formula (1):wherein: X is a halogen; L is selected from the group consisting of a hydrogen atom, a methyl group, a halogen, a mercaptomethyl group, and an isocyanate methyl group; and n is 1 or 2.</description><language>eng ; fre ; ger</language><subject>CHEMISTRY ; COMPOSITIONS BASED THEREON ; CONTACT LENSES ; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON 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</subject><creationdate>2020</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20200122&DB=EPODOC&CC=EP&NR=3597683A1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25555,76308</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20200122&DB=EPODOC&CC=EP&NR=3597683A1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>KARIYAZONO Kazuki</creatorcontrib><creatorcontrib>TAKEMURA Kouhei</creatorcontrib><creatorcontrib>AOKI Takashi</creatorcontrib><creatorcontrib>FURUKAWA Kikuo</creatorcontrib><title>COMPOSITION FOR USE AS OPTICAL MATERIAL</title><description>The purpose of the present invention is to appropriately control the rate of polymerization of a composition in which a thiol compound and an isocyanate compound are added to an episulfide compound and thereby provide an optical material which has high transparency. 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| language | eng ; fre ; ger |
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| subjects | CHEMISTRY COMPOSITIONS BASED THEREON CONTACT LENSES MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON 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 |
| title | COMPOSITION FOR USE AS OPTICAL MATERIAL |
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