Patent US5621131A successfully refreshed from Google Patents.
US5621131A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Conjugated polymers having spiro centers and their use as electroluminescence materials
Assignee: Merck Patent GmbH
•
Filing: 1995-10-12
•
Granted: 1997-04-15
•
Expires: 2015-10-12
Abstract
Abstract Conjugated polymers comprising recurring units of the formula (I), ##STR1## A, B, C, D are identical or different and are each from one to fifteen identical or different arylene and/or heteroarylene and/or vinylene groups which, like the spirobifluorene skeleton itself, may be unsubstituted or substituted; S are identical or different substituents; m, n are 0 or 1. The polymers of the invention having the formula (I) are suitable as electroluminescence materials and have, in particular, a high color purity of the emission.
Inventors
- 👤 Willi Kreuder
- 👤 Donald Lupo
- 👤 Josef Salbeck
- 👤 Hermann Schenk
- 👤 Thomas Stehlin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 16:27
CPC Classifications
H; H05; H05B; H05B33/00; H05B33/12; H05B33/14; C; C07; C07C; C07C17/00; C07C17/35; C07C25/00; C07C25/18; C07C25/22; C07C69/00; C08; C08G; C08G61/00; C09; C09B; C09B69/00; C09B69/10; C09B69/101; C09B69/102; C09B69/105; C09B69/109; C09K; C09K11/00; C09K11/06; H10; H10K; H10K85/00; H10K85/10; H10K85/111; H10K85/113; H10K85/115; H10K85/151; C07C2603/00; H10K50/00; H10K50/10; H10K50/11; H10K85/60; H10K85/615; H10K85/649
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
76 words
A conjugated polymer comprising 2 to 1000 recurring units of the formula (I), ##STR12## where the symbols and indices have the following meanings: A, B, C, D are identical or different and are each from one to fifteen identical or different arylene and/or heteroarylene and/or vinylene groups which, like the spirobifluorene skeleton itself, may be unsubstituted or substituted; S are identical or different and are each H or a substituent; m, n are 0 or 1.
Claim 2
Dependent Claim
76 words
A conjugated polymer comprising 2 to 1000 recurring units of the formula (I), ##STR12## where the symbols and indices have the following meanings: A, B, C, D are identical or different and are each from one to fifteen identical or different arylene and/or heteroarylene and/or vinylene groups which, like the spirobifluorene skeleton itself, may be unsubstituted or substituted; S are identical or different and are each H or a substituent; m, n are 0 or 1.
Claim 3
Dependent Claim
315 words
A polymer as claimed in claim 1, wherein the symbols and indices in the formula (I) have the following meanings: S are identical or different and are R 1 , R 2 , R 3 and/or R 4 ; A,B are identical or different and are ##STR13## X, Y, U, V are identical or different and are CR 5 , N; Z, W are identical or different and are --O--, --S--, --NR 5 --, --CR 5 R 6 --, --CR 5 ═CR 6 --, --CR 5 ═N--; p, q, r are identical or different and are 0, 1 to 5; R 1 , R 2 , R 3 , R 4 , R 5 , R 6 , R 7 , R 8 are identical or different and are each H, a straight-chain or branched alkyl, alkoxy or ester group having from 1 to 22 carbon atoms, aryl and/or aryloxy groups, where the aromatic can be substituted by C 1 -C 22 -alkyl, C 1 -C 22 -alkoxy, Br, Cl, F, CN, and/or NO 2 , Br, Cl, F, CN, NO 2 , CF 3 ; C, D are identical or different and are ##STR14## R 9 are identical or different and are each H, an unbranched or branched alkyl or alkoxy group having from 1 to 22 carbon atoms, --CN, --NO 2 , --NR 11 R 12 , phenyl, biphenyl, 1-naphthyl, 2-naphthyl, 2-thienyl, 2-furanyl, where aryls and heteroaryls can bear a further substituent R 9 ; X, Y are identical or different and are ═CR 5 --, ═N--; Z are identical or different and are --O--, --S--, --NR 11 --, CR 5 R 6 , --CR 5 ═CR 6 --, --CR 5 ═N--; R 11 , R 12 are identical or different and are each H, an unbranched or branched alkyl group having from 1 to 22 carbon atoms, phenyl, 3-methylphenyl, biphenyl, 1-naphthyl, 2-naphthyl.
Claim 4
Dependent Claim
58 words
A polymer as claimed in claim 1, wherein the symbols and indices in the formula (I) have the following meanings: A, B are identical or different and are ##STR15## m, n are identical or different and are 0 or 1; C, D are identical or different and are ##STR16## R=alkyl, C 2 H 4 SO 3 - ##STR17##
Claim 5
Dependent Claim
43 words
A polymer as claimed in claim 1, wherein the symbols and indices in the formula (I) have the following meanings: A, B are identical or different and are ##STR18## m+n is 0 or 1; C, D are identical or different and are ##STR19##
Claim 6
Dependent Claim
11 words
A polymer as claimed in claim 1, which is a copolymer.
Claim 7
Dependent Claim
11 words
An electroluminescence material comprising a polymer as claimed in claim 1.
Claim 8
Dependent Claim
26 words
A process for producing an electroluminescence material, which comprises applying a polymer as claimed in claim 1 in the form of a film to a substrate.
Claim 9
Dependent Claim
28 words
An electroluminescence device comprising one or more active layers, wherein at least one of these active layers comprises a polymer as claimed in claim 1 as electroluminescence material.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2000-04-14 | 2000-10-14 | 2001-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-04-14 | 2004-10-14 | 2005-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-04-14 | 2008-10-14 | 2009-04-15 | $7700.00 | Window Closed / Lapsed |