Phosphor paste compositions and phosphor coatings obtained...

Details Phosphor paste compositions and phosphor coatings obtained... Phosphor paste compositions and phosphor coatings obtained...

C - Chemistry, Metallurgy

09

K

31/155

C09K 11/02 (2006.01) C09D 17/00 (2006.01)

Patent

CA 1338516

A phosphor paste composition is disclosed, which uses as an organic binder an acrylic polymer obtained by copolymerizing an alkyl methacrylate as a principal component with a specific amount of at least one monomer selected from unsaturated carboxylic acids and hydroxyalkyl (meth)acrylates. Also disclosed is a phosphor paste composition making use of a phosphor having a volume average particle size in a range of 1-7 µm, with particles having a particle size of 1-9 µm accounting for at least 60 wt.%. These phosphor paste compositions have excellent firing characteris- tics and provide phosphor coatings excellent in both light-emitting characteristics and resolution.

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