US4061652A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Urethanes of hydroxybenzotriazoles
Assignee: General Electric Co
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Filing: 1975-10-28
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Granted: 1977-12-06
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Expires: 1995-10-28
Abstract
Abstract Urethanes of hydroxybenzotriazoles and hydroxybenzophenones which can be chemically modified upon heating have been found useful in imparting weather resistance to plastic substrates when applied as part of a UV curable resin which can be subsequently heated after cure. UV curable resins containing such urethanes and the use of such resins to treat thermoplastic substrates are also described.
Inventors
- 👤 Siegfried H. Schroeter
- 👤 Daniel R. Olson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 01:42
CPC Classifications
C; C07; C07D; C07D249/00; C07D249/16; C07D249/18; C07D249/20
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
99 words
Organic urethanes of the formula, ##STR3## where R is a member selected from the group consisting of a C.sub.(1-12) aliphatic hydrocarbon radical, a C.sub.(6-13) aromatic hydrocarbon radical, and halogenated derivatives thereof, "a" is an integer equal to 1 or 2, and when a is 1, R is monovalent, and when a is 2, R is divalent, Z is an aromatic organic radical having the formula, ##STR4## where R 1 , R 2 , and R 3 can be the same of different monovalent radicals selected from the group consisting of C.sub.(1-12) alkyl radicals, C.sub.(1-4) alkoxy radicals, halogen and hydrogen.
Claim 2
Dependent Claim
99 words
Organic urethanes of the formula, ##STR3## where R is a member selected from the group consisting of a C.sub.(1-12) aliphatic hydrocarbon radical, a C.sub.(6-13) aromatic hydrocarbon radical, and halogenated derivatives thereof, "a" is an integer equal to 1 or 2, and when a is 1, R is monovalent, and when a is 2, R is divalent, Z is an aromatic organic radical having the formula, ##STR4## where R 1 , R 2 , and R 3 can be the same of different monovalent radicals selected from the group consisting of C.sub.(1-12) alkyl radicals, C.sub.(1-4) alkoxy radicals, halogen and hydrogen.
Claim 3
Dependent Claim
2 words
2-(2-benzotriazol-2-yl)-4-t-octylphenyl N-phenylcarbamate.
Claim 4
Dependent Claim
2 words
2-(2-benzotriazol-2-yl)-4-t-octylphenyl N-phenylcarbamate.
Claim 5
Dependent Claim
2 words
2-(2-benzotriazol-2-yl)-4-t-octylphenyl N-ethylcarbamate.
Claim 6
Dependent Claim
2 words
2-(2-benzotriazol-2-yl)-4-t-octylphenyl N-ethylcarbamate.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-12-05 | 1981-06-06 | 1981-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-12-05 | 1985-06-06 | 1985-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-12-05 | 1989-06-06 | 1989-12-06 | $7700.00 | Window Closed / Lapsed |