McKenna Long & Aldridge LLP
Photochromic compositions and photochromic films
The present invention relates to a photochromic composition comprising multifunctional (meth)acrylate-based monomers having two or more functional groups, a photochromic dye and an aromatic vinyl compound, in which the content of the aromatic vinyl compound is more than 30% by weight and 70% by weight or less, a photochromic film produced by using the same, and a method for producing the photochromic film.
LG Chem, Ltd.
C Y
C09D Y10T
inventional additional
Young-Jun Hyeon Woo-Sung Jee-Seon
Hong Choi Kim Kim