Patent US4414393A successfully refreshed from Google Patents.
US4414393A
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US
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Ultraviolet-absorbing stabilizers substituted by an aliphatic hydroxyl group
Assignee: BASF Corp
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Filing: 1981-11-05
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Granted: 1983-11-08
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Expires: 2001-11-05
Abstract
Abstract Ultraviolet-absorbing stabilizers of the formula E-(G-R) n , L-(G-E) m , or [G-E 1 -G-Q] p where E is a radical derived from an oxanilide, benzalmalonate, α-cyanocinnamate or o-hydroxyphenylbenzotriazole, E 1 is a radical derived from an oxanilide, G is --OCH 2 CHOH--, R is alkyl, phenyl or --CH 2 OT where T is alkyl or alkenyl, n is 1 or 2, m is 2 or 3, L is a direct bond, alkylene or other bis or tris radical, Q has the same meaning as L when m is 2, and p is 1 to 4, are particularly resistant to loss during weathering of outdoor thermoset or thermoplastic coating systems while exhibiting good stabilization efficacy and compatibility in said systems.
Inventors
- 👤 Martin Dexter
- 👤 Roland A. E. Winter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 16:42
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/10; C08K5/11; C08K5/16; C08K5/20; C08K5/315; C08K5/34; C08K5/3467; C08K5/3472; C08K5/3475; C09; C09D; C09D7/00; C09D7/40; C09D7/48
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
23 words
A compound having the formula ##STR17## where T is alkyl of 4 to 14 carbon atoms, and R 5 is hydrogen or chloro.
Claim 2
Dependent Claim
23 words
A compound having the formula ##STR17## where T is alkyl of 4 to 14 carbon atoms, and R 5 is hydrogen or chloro.
Claim 3
Dependent Claim
19 words
A compound according to claim 1 selected from the group consisting of (a) 2-[2-hydroxy-4-(3-n-butyloxy-2-hydropropoxy)phenyl]-2H-benzotriazole; (b) 2-[2-hydroxy-4-(3-n-dodecyloxy-2-hydroxypropoxy)phenyl]-2H-benzotriazole; and (c) 2-[2-hydroxy-4-(3-n-octyloxy-2-hydroxypropoxy)phenyl]-2H-benzotriazole.
Claim 4
Dependent Claim
11 words
A compound according to claim 1 wherein R 5 is hydrogen.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-11-07 | 1987-05-09 | 1987-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-11-07 | 1991-05-09 | 1991-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-11-07 | 1995-05-09 | 1995-11-08 | $7700.00 | Window Closed / Lapsed |