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1.发明授权ORGANIC PHOTOCHROMIC MATERIALS WITH HIGH REFRACTIVE INDEX, THEIR PREPARATION AND ARTICLES FORMED FROM THESE MATERIALS 失效具有较高的折射率，生产和产品从这些材料中有机光镀铬材料
公开(公告)号：EP0799431B1
公开(公告)日：1999-06-23
申请号：EP95942849.1
申请日：1995-11-09
申请人： Corning Incorporated
IPC分类号： C08F290/06 , G02B1/04
摘要： The invention relates to organic photochromic materials consisting of a polymer matrix of optical quality and of at least one dye that imparts photochromic properties to the matrix, the dye being selected from spirooxazines, spiropyrans and chromenes. The polymer constituting the matrix is a copolymer of 30-95 wt.% ethoxylated bisphenol A dimethacrylate and 5-70 wt.% of a polyurethane oligomer having terminal di- or triacrylic or di- or trimethacrylic functionality. Such photochromic materials are most suitable for the production of ophthalmic and sun protection lenses.
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2.发明公开
公开(公告)号：EP0799431A1
公开(公告)日：1997-10-08
申请号：EP95942849.0
申请日：1995-11-09
申请人： CORNING INCORPORATED
摘要： The invention relates to organic photochromic materials consisting of a polymer matrix of optical quality and of at least one dye that imparts photochromic properties to the matrix, the dye being selected from spirooxazines, spiropyrans and chromenes. The polymer constituting the matrix is a copolymer of 30-95 wt.% ethoxylated bisphenol A dimethacrylate and 5-70 wt.% of a polyurethane oligomer having terminal di- or triacrylic or di- or trimethacrylic functionality. Such photochromic materials are most suitable for the production of ophthalmic and sun protection lenses.
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