Granted Patent B2

US 10,294,332 · App. 15/538,216 · Granted May 21, 2019

Abstract

Claims (17)

1. A functionalized siloxane network comprising a siloxane network and a pyridine-containing ligand attached to the siloxane network, wherein the pyridine-containing ligand is a terpyridine compound of the formula and the terpyridine is derived from a compound of the formula:

where R 1- -R 11 are independently chosen from an alkyl, a substituted alkyl, an aryl, a substituted aryl, an inert functional group, an alkoxysilyl functional group, and an alcohol functional group, optionally any two of R 1 - R 11 vicinal to one another, R 1 /R 11 and/or R 3 /R 4 taken together may form a ring being a substituted or unsubstituted, saturated, or unsaturated cyclic structure, with the proviso that the compound comprises an alkoxysilyl functional group, an alcohol functional group, or a combination of two or more thereof;

R 12 and R 13 are C p H 2p+1 , where p is 1-10;

n is 1-20;

q and r are independently 1-20; and

m is 1-20.

2. The functionalized siloxane network of claim 1 , wherein the pyridine-containing ligand is attached to the siloxane network through an oxygen atom or a silicon atom.

3. The functionalized siloxane network of claim 1 , wherein the pyridine-containing ligand is attached to the siloxane network through a linking group derived from an alcohol functional group or an alkoxysilyl functional group.

4. The functionalized siloxane network of claim 1 , wherein the siloxane network comprises a polyorgano silsesquioxane.

5. The functionalized siloxane network of claim 4 , wherein the polyorgano silsesquioxane is in the form of siloxane particles.

6. The functionalized siloxane network of claim 5 , wherein the siloxane particles have an average particle size of from about 0.5 microns to about 12 microns.

7. A luminophoric material comprising the functionalized siloxane network of claim 1 , and a metal or metal salt coordinated by the terpyridine ligand.

8. The luminophoric material of claim 7 , wherein the metal or metal salt comprises a metal chosen from europium, erbium, cerium, neodymium, samarium, terbium, dysprosium, gadolinium, holmium, thulium, ytterbium, lutetium, or a combination of two or more thereof.

9. The luminophoric material of claim 7 , wherein the metal salt comprises europium nitrate.

10. An article comprising the luminophoric material of claim 7 .

11. The article of claim 10 , wherein the luminophoric material is provided as a coating layer on at least a portion of a surface of the article or surface of an organic or inorganic coating or as an additive into an organic or inorganic coating composition.

12. The article of claim 10 , wherein the article comprises a plurality of layers, and at least one layer comprises the luminophoric material.

Assignments (10)