Fluorescent retroreflective sheet

Details Fluorescent retroreflective sheet Fluorescent retroreflective sheet

2005-06-28

2005-06-28

Cain, Edward J. (Department: 1714)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Processes of preparing a desired or intentional composition...

C428S412000, C428S423100, C428S423300, C428S500000

Reexamination Certificate

active

06911486

ABSTRACT:
This invention provides encapsulated type fluorescent retroreflective sheeting which is excellent in appearance and weatherability, and which comprises a surface-protective layer disposed on the side on which light is to strike, a binder layer connected to the surface-protective layer through network bonding parts, an air layer which is sealed-up by the network bonding parts between the surface-protective layer and the binder layer, and a retroreflective element layer disposed between the surface-protective layer and the air layer, or between the binder layer and the air layer, wherein at least one layer located on the light-incident side of sealed-up air layer contains at least one fluorescent dye selected from the group consisting of benzimidazole coumarin type-fluorescent dyes of formula (1) as follows:and benzopyran type-fluorescent dyes of formula (2) as follows:

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