Patent EP0191582A1 successfully refreshed from Google Patents.
EP0191582A1
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Ultraviolet light absorbers of 2-phenylbenzotriazole type
Assignee: Takemoto Oil and Fat Co Ltd
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Filing: 1986-01-31
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Granted: —
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Expires: 2006-01-31
Abstract
Abstract New 2 phenylbenzotriazole derivatives of the general formula: in which R' and R 2 are same or different and each represents a halogen atom, a hydroxy group, an alkyl group with 1-8 carbon atoms or an alkoxy group with 1-18 carbon atoms, A is a phenylene group, a halogen substituted phenylene group or a naphthylene group, m is zero or an integer in the range 1-4, n is zero or an integer in the range 1-3 and when m or n represents an integer of greater than 1 then the corresponding groups R' or R 2 are same or different. These compounds can be used as ultraviolet light absorbers which have superior characteristics regarding heat resistance and ability to absorb ultraviolet light.
Inventors
- 👤 Tatsuhiko Ozaki
- 👤 Masato Sugiura
- 👤 Fumitoshi Sugiura
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-08 20:55
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
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
100 words
A compound of the general formula: in which R 1 and R 2 are same or different and each represents a halogen atom, a hydroxy group, an alkyl group with 1-8 carbon atoms or an alkoxy group with 1-18 carbon atoms, A is a phenylene group, a halogen substituted phenylene group or a napthylene group, m is zero or an integer in the range 1-4, n is zero or an integer in the range 1-3 and when m or n represents an integer of greater than 1 then the corresponding groups R 1 or R 2 are same or different.
Claim 2
Dependent Claim
100 words
A compound of the general formula: in which R 1 and R 2 are same or different and each represents a halogen atom, a hydroxy group, an alkyl group with 1-8 carbon atoms or an alkoxy group with 1-18 carbon atoms, A is a phenylene group, a halogen substituted phenylene group or a napthylene group, m is zero or an integer in the range 1-4, n is zero or an integer in the range 1-3 and when m or n represents an integer of greater than 1 then the corresponding groups R 1 or R 2 are same or different.
Claim 3
Dependent Claim
9 words
A compound as claimed in claim 1 wherein m=O.
Claim 4
Dependent Claim
11 words
A compound as claimed in claim 1 wherein n=1 or 3.
Claim 5
Dependent Claim
18 words
A compound as claimed in claim 1 wherein A is 1,3-phenylene, 1,4-phenylene, 2,6 napthalene or 2 chloro-1, 4-phenylene.
Claim 6
Dependent Claim
252 words
A compound of the formula I as defined in claim 1 selected from the following:-(I): m - 0, (R 2 ) n = (CR 3 ) 1 , A = 1,3-Phenylene (II): m = 0, (R 2 ) n = (CH 3 ) 1 , A = 1,4 - phenylene: (III): m = 0, (R 2 ) n = (OC 8 H 17 ) 1 , A = 1,3 - phenylene: (IV): (R 1 ) m = (CH 3 ) 1 + (C1) 1 , (R 2 ) n = (t-C 4 H 9 ) 1 , A = 1,3 - phenylene. (V): m = 0, (R 2 ) n = (t=C 4 H 9 ) 1 , A = 1,4 - phenylene. (VI): m = 0 , (R 2 ) n = (t-C 8 H 17 ) 1 , A = 1,3 - phenylene. (VII): m = 0, (R 2 ) n = (OH) 1 , A = 1,4 - phenylene. (VIII): (R 1 ) m = (C1) 1 , (R 2 ) n = (CR 3 ) 3 , A = 1,3 - phenylene. (IX): (R 1 ) m = (C1) 1 , (R 2 ) n = (CH 3 ) 3 , A - 1,4 - phenylene. (X): m = 0, (R 2 ) n = (CH 3 ) 1 , A - 2,6 - naphthalene. (XI): m = 0, (R 2 ) n = (CH 3 ) 1 , A = 2 - chloro - 1,4 - phenylene
Claim 7
Dependent Claim
14 words
Organic material containing or coated with a compound of any of the preceding claims.
Claim 8
Dependent Claim
14 words
Polymeric materials containing or coated with a compound of any of the preceding claims.
Claim 9
Dependent Claim
15 words
Polyester or polyamide containing or coated with a compound of any of the preceding claims.
Claim 10
Independent Claim
25 words
A method of protecting an organic material from uv degradation by incorporating therein a compound as claimed in any one of claims 1 to 5.
Claim 11
Dependent Claim
17 words
The use of a compound claimed in any of claims 1 to 5, as a uv absorber.
References Cited (Backward Citations)
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