Method and apparatus for recycling ultraviolet curing resin
申请人:MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
公开号:EP1591217A1
公开(公告)日:2005-11-02
If an ultraviolet curing resin is colored by contamination by another substance, there have been issues regarding increased cost and the environmental burden of treating the waste solution due to an inability to recycle the resin as it is. The ultraviolet curing resin that is in a colored, uncured state is decolored in the present invention by irradiation of light having a wavelength in the vicinity of the maximum absorption wavelength of the coloring material, and then recycled. As a result, it is possible to reduce costs and contribute to the protection of the environment.
Method and apparatus for recycling ultraviolet curing resin, and method for manufacturing optical recording medium using that recycling method
申请人:Doi Yukako
公开号:US20050238838A1
公开(公告)日:2005-10-27
If an ultraviolet curing resin is colored by contamination by another substance, there have been issues regarding increased cost and the environmental burden of treating the waste solution due to an inability to recycle the resin as it is. The ultraviolet curing resin that is in a colored, uncured state is decolored in the present invention by irradiation of light having a wavelength in the vicinity of the maximum absorption wavelength of the coloring material, and then recycled. As a result, it is possible to reduce costs and contribute to the protection of the environment.
Light-fastness of anionic oxonol dyes as measured in noncrystalline solid films was markedly improved by introducing 4,4â²-bipyridiniums as counter cations.