Functionalized siloxane materials

Patent metadata

Field	Value
Publication number	US-10294332-B2
Application number	US-201515538216-A
Country	US
Kind code	B2
Filing date	Dec 29, 2015
Priority date	Dec 30, 2014
Publication date	May 21, 2019
Grant date	May 21, 2019

Abstract

A functionalized siloxane network. The functionalized network comprises a ligand attached to the network. The ligand includes a pyridine-containing compound, and in one embodiment, the ligand includes a terpyridine compound. The functionalized siloxane network can be siloxane particles. The functionalized siloxane network can coordinate metal ions and can be used in luminescent articles.

First claim

What is claimed is:

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.

Assignees

• Momentive Performance Mat Inc

Inventors

• Sivasubramanian Karthikeyan
• Khare Vivek

Classifications

• C08G77/80

  Siloxanes having aromatic substituents, e.g. phenyl side groups · CPC title

• C09K11/06

  containing organic luminescent materials · CPC title

• C09K2211/182

  of the rare earth metals, i.e. Sc, Y or lanthanide · CPC title

• C08G77/26 Primary

  nitrogen-containing groups · CPC title

• C08G77/388 Primary

  containing nitrogen · CPC title