CURABLE PHOTOCHROMIC COMPOSITIONS AND OPTICAL ARTICLES PREPARED THEREFROM
摘要
The present invention provides a curable, organic polymeric photochromic composition comprising: a photochromic amount of at least one photochromic material; a polymeric polyol having carbonate groups along its backbone and having a number average molecular weight greater than 5000 g/mole; and a curing agent having reactive functional groups capable of reacting with hydroxyl groups on the polymeric polyol. After curing and after the Photochromic Performance Test the composition demonstrates a T1/2 fade rate of less than 200 seconds. Also provided is a photochromic article comprising a rigid substrate and a photochromic organic polymeric coating applied to a surface of the substrate. The photochromic organic polymeric coating comprises the composition described above.
申请公布号
HK1187358(A1)
申请公布日期
2015.08.21
申请号
HK20140100224
申请日期
2014.01.09
申请人
TRANSITIONS OPTICAL INC.
发明人
BOWLES, STEVEN E. SE;KUTCHKO,CYNTHIA C;LAMERS, PAUL H. PH;LEWIS,JASON R. JR;SARTORI,DAVE D;WALTERS,ROB R;WANG,FENG