A photochromic polyurethane laminate that is constructed to solve certain manufacturing difficulties involved in the production of plastic photochromic lenses is disclosed. The photochromic laminate includes at least two layers of a resinous material and a photochromic polyurethane layer that is interspersed between the two resinous layers and which contains photochromic compounds. The polyurethane layer is formed by curing a mixture of a solid thermoplastic polyurethane, at least one isocyanate prepolymer, at least one photochromic compound, and a stabilizing system.
申请公布号
WO2005023529(A2)
申请公布日期
2005.03.17
申请号
WO2004US30023
申请日期
2004.09.09
申请人
VISION-EASE LENS, INC.;QIN, XUZHI;SUGIMURA, HIDEYO;BOULINEAU, MICHAEL, S.
发明人
QIN, XUZHI;SUGIMURA, HIDEYO;BOULINEAU, MICHAEL, S.