Ultraviolet-absorbing film containing a fluorescent...

Details Ultraviolet-absorbing film containing a fluorescent... Ultraviolet-absorbing film containing a fluorescent...

2005-03-15

2005-03-15

Koslow, C. Melissa (Department: 1755)

Compositions

Organic luminescent material containing compositions

Synthetic resin containing

C252S301280, C252S301240, C252S589000, C252S588000, C428S409000, C428S537500

Reexamination Certificate

active

06866795

ABSTRACT:
An ultraviolet-absorbing film comprising a fluorescent brightening agent and having a transmission of the rays of 410 nm or less of 90% or less, wherein the fluorescent brightening agent is represented by the following formula (I):wherein R1and R4each represents a hydrogen atom, an alkyl group or an alkoxyl group; R2and R3each represents an alkyl group; and [A] represents a substituted aryl or substituted ethenyl group.

REFERENCES:
patent: 3798231 (1974-03-01), Fleck et al.
patent: 3873531 (1975-03-01), Elam
patent: 3926969 (1975-12-01), Fleck et al.
patent: 5998626 (1999-12-01), Sato
patent: 20030170467 (2003-09-01), Cornelius et al.
patent: 581 134 (1976-10-01), None
patent: 51-77639 (1976-07-01), None
patent: 6-3682 (1994-01-01), None
patent: 11-29556 (1999-02-01), None
Patent Abstracts of Japan—11 0 29 556 (2/99).

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