US4996326A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Novel 2-(2-hydroxyphenyl)-benzotriazole derivatives, substituted by branched long chain alkyl groups containing ester moieties
Assignee: BASF Corp
•
Filing: 1990-01-12
•
Granted: 1991-02-26
•
Expires: 2010-01-12
Abstract
Abstract Benzotriazoles of the formula I ##STR1## in which R 1 and R 2 are located in the ortho-position or para-position relative to the OH group and at least one of these substituents in an α-branched alkyl group containing a polar group M in the ω-position are liquid or low-melting compounds which absorb UV light and can be used as stabilizers for organic materials. M can be, for example, an ester or amide group. R 3 can be H, Cl, alkyl, alkoxy or a carboxyl group.
Inventors
- 👤 David G. Leppard
- 👤 Mario Slongo
- 👤 Jean Rody
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 19:36
CPC Classifications
G; G03; G03C; G03C7/00; G03C7/30; G03C7/392; G03C7/39208; G03C7/3924; G03C7/39244; G03C7/39256; C; C07; C07D; C07D249/00; C07D249/16; C07D249/18; C07D249/20; C09; C09D; C09D7/00; C09D7/40; C09D7/48; C08; C08K; C08K5/00; C08K5/16; C08K5/34; C08K5/3467; C08K5/3472; C08K5/3475
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
127 words
A compound of formula I ##STR65## in which R 1 is located in the ortho-position or para-position relative to the OH group and is a group of formula IIa ##STR66## in which R 6 is C 5 -C 18-alkyl which is unsubstituted or substituted by --OH, C 3 -C 30 -alkyl or C 3 -C 30 -hydroxyalkyl each of which is interrupted by one or more --O-- groups, or is C 5 -C 12 -cycloalkyl, C 2 -C 18 -alkenyl, C 7 -C 15 -aralkyl, glycidyl or furfuryl, R 2 is C 1 -C 12 -alkyl, cyclohexyl or a group of formula IIa, or a group of formula IV --C.sub.p H.sub.2p --COOR.sup.6 (IV) in which p is 1 or 2, and R 3 is hydrogen or chlorine.
Claim 2
Dependent Claim
127 words
A compound of formula I ##STR65## in which R 1 is located in the ortho-position or para-position relative to the OH group and is a group of formula IIa ##STR66## in which R 6 is C 5 -C 18-alkyl which is unsubstituted or substituted by --OH, C 3 -C 30 -alkyl or C 3 -C 30 -hydroxyalkyl each of which is interrupted by one or more --O-- groups, or is C 5 -C 12 -cycloalkyl, C 2 -C 18 -alkenyl, C 7 -C 15 -aralkyl, glycidyl or furfuryl, R 2 is C 1 -C 12 -alkyl, cyclohexyl or a group of formula IIa, or a group of formula IV --C.sub.p H.sub.2p --COOR.sup.6 (IV) in which p is 1 or 2, and R 3 is hydrogen or chlorine.
Claim 3
Dependent Claim
39 words
The compound according to claim 1 wherein formula I, R 1 and R 2 are in the ortho-and para-positions relative to the OH group and are each of formula IIa, R 6 is methyl and R 3 is hydrogen.
Claim 4
Dependent Claim
51 words
The compound according to claim 1 where in formula I, R 1 is in the para-position relative to the OH group and is a group of formula IIa, R 6 is 2-methylpentyl, R 2 is in the ortho-position relative to the OH group and is ethyl, and R 3 is hydrogen.
Claim 5
Dependent Claim
51 words
The compound according to claim 1 where in formula I, R 1 is in the ortho-position relative to the OH group and is a group of formula IIa, R 6 is 2-methylpentyl, R 2 is in the para-position relative to the OH group and is ethyl, and R 3 is hydrogen.
References Cited (Backward Citations)
US3399173A
Cited
US3218332A
Cited
GB1169859A
Cited
EP0057160B1
Cited
US4853471A
Cited
US4904815A
Cited
EP0131468A2
Cited
US4528311A
Cited
US4785063A
Cited
EP0180548A2
Cited
US4587346A
Cited
EP0191582A1
Cited
DE3624811A1
Cited
EP0323408A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-02-25 | 1994-08-27 | 1995-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-02-25 | 1998-08-27 | 1999-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-02-25 | 2002-08-27 | 2003-02-26 | $7700.00 | Window Closed / Lapsed |