Novel color converter

Patent metadata

Field	Value
Publication number	US-2016284947-A1
Application number	US-201615180161-A
Country	US
Kind code	A1
Filing date	Jun 13, 2016
Priority date	Jun 10, 2011
Publication date	Sep 29, 2016
Grant date	—

Abstract

Color converter comprising at least one polymer and at least one organic fluorescent dye comprising at least one structural unit of the formula (I)

where the structural unit may be mono- or polysubstituted by identical or different substituents and where one or more CH groups of the six-membered ring of the benzimidazole structure shown may be replaced by nitrogen.

First claim

1 - 23 . (canceled)

24 : A polymer mixture, comprising at least one polymer and at least one organic fluorescent dye, comprising at least one structural unit of the formula (II)

wherein:
one or more CH groups of the six-membered ring of the benzimidazole structure of the structural unit are optionally replaced by nitrogen and the symbols are each defined as follows:
n is a number from 1, 2, 3, 4 or to 5 for each structural unit of the formula (II);
(X—R) is phenyl, tolyl, ethylphenyl, ortho/meta/para xylyl, mesityl, naphthyl, anthranyl, phenanthrenyl, pyrenyl, benzopyrenyl, fluorenyl, indanyl, indenyl, tetralinyl, phenoxy, thiophenoxy, 4-ethoxyphenyl, each of which may be mono- or polysubstituted by identical or different radicals (i), (ii), (iii), (iv) and/or (v):
(i) C 1 -C 30 -alkyl whose carbon chain may comprise one or more —O—, —S—, —NR 1 —, —C≡C—, —CR 1 =CR 1 - and/or —CO— moieties and which may be mono- or polysubstituted by: C 1 -C 12 -alkoxy, hydroxyl, halogen, cyano and/or aryl which may be mono- or polysubstituted by C 1 -C 18 -alkyl and/or C 1 -C 6 -alkoxy;
(ii) C 3 -C 8 -cycloalkyl whose carbon skeleton may comprise one or more —O—, —S—, —NR 1 —, —CR 1 =CR 1 - and/or —CO— moieties and which may be mono- or polysubstituted by C 1 -C 18 -alkyl, C 1 -C 12 -alkoxy and/or C 1 -C 6 -alkylthio;
(iii) aryl or hetaryl, to each of which may be fused further 5- to 7-membered saturated or unsaturated rings whose carbon skeleton may comprise one or more —O—, —S—, —NR 1 —, —N═CR 1 —, —CR 1 =CR 1 —, —CO—, —SO— and/or —SO 2 — moieties, where the overall ring system may be mono- or polysubstituted by: C 1 -C 18 -alkyl, C 1 -C 12 -alkoxy, —C═CR 1 —, —CR 1 =CR 1 —, hydroxyl, halogen, cyano, —NR 2 R 3 , —NR 2 COR 3 , —CONR 2 R 3 , —SO 2 NR 2 R 3 , —COOR 2 and/or —SO 3 R 2 ;
(iv) a —U-aryl radical which may be mono- or polysubstituted by the above radicals mentioned as substituents for the aryl radicals (iii), where U is a —O—, —S—, —NR 1 —, —CO—, —SO— or —SO 2 — moiety;
(v) C 1 -C 12 -alkoxy, C 1 -C 6 -alkylthio, —C≡CR 1 , —CR 1 =CR 1 2 , hydroxyl, mercapto, halogen, cyano, nitro, —NR 2 R 3 , —NR 2 COR 3 , —CONR 2 R 3 , —SO 2 NR 2 R 3 , —COOR 2 or —SO 3 R 2 ;
R 1 , R 2 , R 3 are each independently hydrogen; C 1 -C 18 -alkyl whose carbon chain may comprise one or more —O—, —S—, —CO—, —SO— and/or —SO 2 — moieties and which may be mono- or polysubstituted by C 1 -C 12 -alkoxy, C 1 -C 6 -alkylthio, hydroxyl, mercapto, halogen, cyano, nitro and/or —COOR 1 ; aryl or hetaryl, to each of which may be fused further saturated or unsaturated 5- to 7-membered rings whose carbon skeleton may comprise one or more —O—, —S—, —CO— and/or —SO 2 — moieties, where the overall ring system may be mono- or polysubstituted by C 1 -C 12 -alkyl and/or the above radicals mentioned as substituents for alkyl.

25 : A fluorescent dye, dye selected from the group consisting of:

and mixtures thereof,
wherein:
n is a number from 0 to (10-p) for each structural unit of the formula (II);
p is the number of CH units which have been replaced by nitrogen in the six-membered ring of the benzimidazole structure; and
R 1 independently represents hydrogen, C 1 -C 18 -alkyl or cycloalkyl, the carbon chain of which may comprise one or more —O—, —S—, —CO—, —SO— and/or —SO 2 — moieties and which may be mono- or polysubstituted; aryl or hetaryl which may be mono- or polysubstituted.

Assignees

• Basf Se

Inventors

• Koenemann Martin
• Wagenblast Gerhard
• Send Robert
• Ivanovici Sorin
• Dekeyzer Gerardus

Classifications

• C09B57/06 Primary

  Naphtholactam dyes · CPC title

• C09K2211/1011

  Condensed systems · CPC title

• Y02E10/52

  PV systems with concentrators · CPC title

• C09K11/02

  Use of particular materials as binders, particle coatings or suspension media therefor · CPC title

• C09K11/06

  containing organic luminescent materials · CPC title