METHOD FOR MANUFACTURING SPECTACLE LENSES

To provide an iso(thio)cyanate composition having excellent storage stability.SOLUTION: Provided is an iso(thio)cyanate composition for optical members containing: an iso(thio)cyanate compound having two or more iso(thio)cyanate groups in a molecule; a phosphate ester compound represented by general...

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Bibliographische Detailangaben
Hauptverfasser:	TAZAKI NATSUMI, KAMISAKA MASAHISA
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	CONTACT LENSES OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS PERFORMING OPERATIONS PHYSICS PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCESIN A PLASTIC STATE SPECTACLES SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURESAS SPECTACLES TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	To provide an iso(thio)cyanate composition having excellent storage stability.SOLUTION: Provided is an iso(thio)cyanate composition for optical members containing: an iso(thio)cyanate compound having two or more iso(thio)cyanate groups in a molecule; a phosphate ester compound represented by general formula (1); and a phosphate ester compound represented by general formula (2). The total content of the phosphate ester compounds is 1-25,000 ppm based on the mass of the iso(thio)cyanate compound.SELECTED DRAWING: None 【課題】優れた保存安定性を有するイソ（チオ）シアネート組成物を提供する。【解決手段】分子内に２個以上のイソ（チオ）シアネート基を有するイソ（チオ）シアネート化合物と、一般式（１）で表されるリン酸エステル化合物と、一般式（２）で表されるリン酸エステル化合物と、を含有し、前記リン酸エステル化合物の合計の含有量が、前記イソ（チオ）シアネート化合物の質量を基準として１〜２５，０００ｐｐｍである、光学部材用イソ（チオ）シアネート組成物。【選択図】なし