Composite particles comprising hydrophobic dyes and amphiphilic block copolymers and their use in optical applications

Composite particles comprising a hydrophobic dye and an amphiphilic block copolymer encapsulating the dye are disclosed. The dye exhibits an absorption peak at one or more points in the ultraviolet, visible or infrared region of the electromagnetic spectrum. The particles are thus useful in optical...

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Bibliographische Detailangaben
Hauptverfasser:	PANG YUAN, RARD, CONROD, IAN, D, PAYNE MATTHEW, MASSON, G, KIRKUP NICOLAI, CURTIS WILLIAM MICHAEL ANTHONY
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	ADHESIVES CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY CONTACT LENSES DYES LAKES MANUFACTURE OR TREATMENT OF NANOSTRUCTURES MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS MORDANTS NANOTECHNOLOGY NATURAL RESINS OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES PAINTS PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL PHYSICS POLISHES SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES SPECTACLES SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURESAS SPECTACLES THEIR RELEVANT APPARATUS TRANSPORTING
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Beschreibung
Zusammenfassung:	Composite particles comprising a hydrophobic dye and an amphiphilic block copolymer encapsulating the dye are disclosed. The dye exhibits an absorption peak at one or more points in the ultraviolet, visible or infrared region of the electromagnetic spectrum. The particles are thus useful in optical applications, such as the preparation of contact lenses capable of shielding harmful radiation. In a selected embodiment, the dye is zinc (II) 5, 10, 15, 20-(tetraphenyl) porphyrin and the copolymer is an acrylate or PEO copolymer that has been crosslinked. 公开了包含疏水染料和封装染料的两亲嵌段共聚物的复合颗粒。该染料在电磁光谱的紫外、可见或红外区域中的一个或多个点显示吸收峰。因此该颗粒在光学应用(例如能屏蔽有害辐射的隐形眼镜的制备)中是有用的。在选择实施方式中，染料是锌(II)5,10,15,20-(四苯基)卟啉并且共聚物是已经交联的丙烯酸酯或PEO共聚物。