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US4996326A
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Novel 2-(2-hydroxyphenyl)-benzotriazole derivatives, substituted by branched long chain alkyl groups containing ester moieties
Assignee: BASF Corp
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Filing: 1990-01-12
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Granted: 1991-02-26
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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 19:51
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.
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