US4853471A
Expired / Lapsed
US
⏱️ 0.0 years remaining
2-(2-Hydroxyphenyl)-benztriazoles, their use as UV-absorbers and their preparation
Assignee: BASF Corp
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Filing: 1987-11-12
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Granted: 1989-08-01
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Expires: 2007-11-12
Abstract
Abstract The novel UV-absorbers are compounds of the formula ##STR1## in which R 1 is, for example, hydrogen, n is one of the numbers 1 or 2 and R 2 is an appropriate monovalent or divalent radical, for example --OH or --O--CH 2 CH 2 --O--. The UV-absorbers are used in particular for stabilising and improving lacquers and photographic material.
Inventors
- 👤 Jean Rody
- 👤 Mario Slongo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 19:56
CPC Classifications
C; C07; C07D; C07D249/00; C07D249/16; C07D249/18; C07D249/20; C08; C08K; C08K5/00; C08K5/16; C08K5/34; C08K5/3467; C08K5/3472; C08K5/3475; C09; C09D; C09D7/00; C09D7/40; C09D7/48; G; G03; G03C; G03C1/00; G03C1/76; G03C1/815; G03C1/8155
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
193 words
A compound of the formula I ##STR40## in which R 1 is H, Cl or straight-chain or branched C 1 -C 4 alkyl and n is one of the numbers 1 or 2, in which, (a) when n=1, R 2 is Cl or --OR 3 , and (b) when n=2, R 2 is --O--R 9 --O--, R 3 is H, straight-chain or branched C 1 -C 18 alkyl which is unsubstituted or substituted by 1 to 3 OH groups or straight-chain or branched C 3 -C 18 alkyl which is interrupted by --O-- or --S-- and which can be unsubstituted or substituted by OH, C 5 -C 12 cycloalkyl which is unsubstituted or substituted by OH, straight-chain or branched C 2 -C 18 alkenyl which is unsubstituted or substituted by OH, C 7 -C 15 aralkyl, or ##STR41## R 9 is C 2 -C 8 alkylene, C 4 -C 8 alkenylene, cyclohexylene, straight-chain or branched C 4 -C 10 alkylene which is interrupted by --O--, and R 11 is straight-chain or branched C 2 -C 8 alkylene, straight-chain or branched C 4 -C 10 alkylene which is interrupted by --O--, cycloalkylene, arylene, ##STR42##
Claim 2
Dependent Claim
193 words
A compound of the formula I ##STR40## in which R 1 is H, Cl or straight-chain or branched C 1 -C 4 alkyl and n is one of the numbers 1 or 2, in which, (a) when n=1, R 2 is Cl or --OR 3 , and (b) when n=2, R 2 is --O--R 9 --O--, R 3 is H, straight-chain or branched C 1 -C 18 alkyl which is unsubstituted or substituted by 1 to 3 OH groups or straight-chain or branched C 3 -C 18 alkyl which is interrupted by --O-- or --S-- and which can be unsubstituted or substituted by OH, C 5 -C 12 cycloalkyl which is unsubstituted or substituted by OH, straight-chain or branched C 2 -C 18 alkenyl which is unsubstituted or substituted by OH, C 7 -C 15 aralkyl, or ##STR41## R 9 is C 2 -C 8 alkylene, C 4 -C 8 alkenylene, cyclohexylene, straight-chain or branched C 4 -C 10 alkylene which is interrupted by --O--, and R 11 is straight-chain or branched C 2 -C 8 alkylene, straight-chain or branched C 4 -C 10 alkylene which is interrupted by --O--, cycloalkylene, arylene, ##STR42##
Claim 3
Dependent Claim
56 words
A compound according to claim 1 of the formula I in which R 1 is H or Cl, n is the number 1 and R 2 is --OR 3 , R 3 is straight-chain or branched C 4 -C 12 alkyl, straight-chain or branched C 3 -C 10 alkyl which is interrupted by O or cyclohexyl.
Claim 4
Dependent Claim
75 words
A compound according to claim 1 of the formula I in which R 1 is H or Cl, n is the number 2 and R 2 is --O--R 9 --O--, R 9 is C 2 -C 6 alkylene, straight-chain or branched C 4 -C 10 alkylene which is interrupted by --O--, ##STR43## and R 11 is C 2 -C 6 alkylene or straight-chain or branched C 4 -C 10 alkylene which is interrupted by --O--.
Claim 5
Dependent Claim
22 words
A compound according to claim 1 which is 2-[2-hydroxy-3-tert.-butyl-5-(2-carbo-n-octyloxythyl)-pheny]-benztriazole or 2-{2-hydroxy-3-tert.-butyl-5-[2-carbo-(2-ethylhexyl)-oxyethyl]-phenyl}-benztriazole or 2-[2-hydroxy-3-tert.-butyl-5-(2-carbo-n-octyloxyethyl)-phenyl]-5-chlorobenztriazole or 2-{2-hydroxy-3-tert.-butyl-5-[2-carbo-(2-ethylhexyl)-oxyethyl]-phenyl}-5-chlorobenztriazole or the compound of the formula ##STR44##
Claim 6
Dependent Claim
13 words
A mixture of 2-[2-hydroxy-3-tert.-butyl-5(2-carbo-n-octyloxyethyl)-phenyl]-5-chlorobenztriazole and 2-{2-hydroxy-3-tert.-butyl-5-[2-carbo-(2-ethylhexyl)-oxyethyl]-phenyl}-5-chlorobenztriazole in a ratio by weight of 1:1.
Claim 7
Dependent Claim
13 words
A mixture of 2-[2-hydroxy-3-tert.-butyl-5(2-carbo-n-octyloxyethyl)-phenyl]-5-chlorobenztriazole and 2-{2-hydroxy-3-tert.-butyl-5-[2-carbo-(2-ethylhexyl)-oxyethyl]-phenyl}-5-chlorobenztriazole in a ratio by weight of 1:1.
References Cited (Backward Citations)
US4716234A
Cited
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| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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