US4283327A
Expired / Lapsed
US
⏱️ 0.0 years remaining
2-(2-Hydroxy-3,5-di-tert-octylphenyl)-2H-benzotriazole stabilized compositions
Assignee: BASF Corp
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Filing: 1979-08-20
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Granted: 1981-08-11
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Expires: 1999-08-20
Abstract
Abstract 2-[2-Hydroxy-3,5-di-tert-octylphenyl]-2H-benzotriazole exhibits outstanding efficacy in protecting organic substrates from light induced deterioration as well as good resistance to loss by volatilization or exudation during the high temperature processing of stabilized compositions.
Inventors
- 👤 Martin Dexter
- 👤 Roland A. E. Winter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 05:33
CPC Classifications
C; C07; C07D; C07D249/00; C07D249/16; C07D249/18; C07D249/20; C07C; C07C245/00; C07C245/02; C07C245/06; C07C245/08; C08; C08K; C08K5/00; C08K5/16; C08K5/34; C08K5/3467; C08K5/3472; C08K5/3475
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
57 words
A composition of matter comprising an organic polymer, subject to light-induced deterioration, selected from the group consisting of thermoset acrylic resins, thermoplastic acrylic resins, alkyd/acrylic resins, alkyd resins and polycarbonates, stabilized with from 0.1 to 5% by weight of a compound of the formula ##STR4## wherein R 1 is hydrogen or chloro, and R 2 is tert-octyl.
Claim 2
Dependent Claim
57 words
A composition of matter comprising an organic polymer, subject to light-induced deterioration, selected from the group consisting of thermoset acrylic resins, thermoplastic acrylic resins, alkyd/acrylic resins, alkyd resins and polycarbonates, stabilized with from 0.1 to 5% by weight of a compound of the formula ##STR4## wherein R 1 is hydrogen or chloro, and R 2 is tert-octyl.
Claim 3
Dependent Claim
26 words
A composition according to claim 1 wherein the organic polymer is selected from the group consisting of thermoset acrylic resins, thermoplastic acrylic resins and alkyd resins.
Claim 4
Dependent Claim
9 words
A composition according to claim 1 stabilized with 2-(2-hydroxy-3,5-di-tert-octylphenyl)-2H-benzotriazole.
Claim 5
Independent Claim
63 words
A method of stabilizing an organic polymer, subject to light-induced deterioration, selected from the group consisting of thermoset acrylic resins, thermoplastic acrylic resins, alkyd/acrylic resins, alkyd resins and polycarbonates, which comprises incorporating in said material from 0.1 to 5% by weight of said material of a compound of the formula ##STR5## wherein R 1 is hydrogen or chloro, and R 2 is tert-octyl.
Claim 6
Independent Claim
63 words
A method of stabilizing an organic polymer, subject to light-induced deterioration, selected from the group consisting of thermoset acrylic resins, thermoplastic acrylic resins, alkyd/acrylic resins, alkyd resins and polycarbonates, which comprises incorporating in said material from 0.1 to 5% by weight of said material of a compound of the formula ##STR5## wherein R 1 is hydrogen or chloro, and R 2 is tert-octyl.
Claim 7
Dependent Claim
26 words
A method according to claim 4 wherein the organic polymer is selected from the group consisting of thermoset acrylic resins, thermoplastic acrylic resins and alkyd resins.
Claim 8
Dependent Claim
14 words
A method according to claim 4 wherein the stabilizing compound being incorporated is 2-(2-hydroxy-3,5-di-tert-octylphenyl)-2H-benzotriazole.
References Cited (Backward Citations)
US3487453A
Cited
US4041044A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-08-10 | 1985-02-09 | 1985-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-08-10 | 1989-02-09 | 1989-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-08-10 | 1993-02-09 | 1993-08-11 | $7700.00 | Window Closed / Lapsed |