초록 ▼

A phosphorescent article which has a phosphorescent layer and a transparent resin layer sequentially superposed on a reflective layer. It uses SrAl2 O4 as a phosphorescent pigment to be incorporated in the phosphorescent layer and a transparent resin containing no ultraviolet light absorber is used

A phosphorescent article which has a phosphorescent layer and a transparent resin layer sequentially superposed on a reflective layer. It uses SrAl2 O4 as a phosphorescent pigment to be incorporated in the phosphorescent layer and a transparent resin containing no ultraviolet light absorber is used for the transparent resin layer. Further, for the convenience of use, an adhesive layer and a release layer may be sequentially superposed on the surface of the reflective layer opposite to the surface thereof contiguous to the phosphorescent layer.

대표청구항 ▼

A phosphorescent article comprising: a reflective layer comprising a white pigment, a phosphorescent layer superposed on said reflective layer comprising from about 70 to about 85% by weight, based on the weight of said phosphorescent layer, of SrAl2 O4 as a phosphorescent pigment, and a transparent

A phosphorescent article comprising: a reflective layer comprising a white pigment, a phosphorescent layer superposed on said reflective layer comprising from about 70 to about 85% by weight, based on the weight of said phosphorescent layer, of SrAl2 O4 as a phosphorescent pigment, and a transparent resin layer superposed on said phosphorescent layer, said transparent resin layer comprising a transparent resin and containing no ultraviolet light absorber, the total thickness of said reflective layer, phosphorescent layer and transparent resin layer being in the range of from about 70 to about 600 m10 m50 to about 200 m10 to about 400 m