Patent ID: 6682662
Filing Date: 2004-01-27
Classification: C08K,C09K,F21V,Y10T

Abstract:
A fluorescent lamp cover, which comprises a transparent resin containing a fluorescent brightening agent so as to cut off 90% or more of the rays of 410 nm or less,wherein the fluorescent brightening agent is represented by the following formula (I): wherein R1 and R4 each independently represents a hydrogen atom, an alkyl group or an alkoxyl group; R2 and R3 each independently represents an alkyl group; and [A] represents a group selected from the following formulae (a) to (k): wherein in the above formulae, R1â€² and R4â€² have the same meaning as R1 and R4 respectively; R2â€² and R3â€² have the same meaning as R2 and R3 respectively; m represents an integer of from 1 to 5; X and Y each represents an alkyl group, an aryl group, an alkoxyl group, an alkylamino group, an arylamino group, an amino group or a hydroxyl group; and Z represents an alkyl group, an aryl group, a cyano group, or an alkoxycarbonyl group.