US4179548A
Expired / Lapsed
US
⏱️ 0.0 years remaining
UV curable resin compositions containing urethanes of hydroxybenzotriazoles or urethanes of hydroxy benzophenones
Assignee: General Electric Co
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Filing: 1977-09-14
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Granted: 1979-12-18
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Expires: 1997-09-14
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
2026-10-31 04:57
CPC Classifications
C; C07; C07D; C07D249/00; C07D249/16; C07D249/18; C07D249/20; Y; Y10; Y10S; Y10S522/00; Y10S522/907
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
26 words
A UV curable composition comprising an organic resin, 0.1 to 10% by weight of the UV curable composition of an organic urethane of the formula, ##STR3##
Claim 2
Dependent Claim
26 words
A UV curable composition comprising an organic resin, 0.1 to 10% by weight of the UV curable composition of an organic urethane of the formula, ##STR3##
Claim 3
Dependent Claim
110 words
01 to 1% by weight of the UV curable composition of a urethane decomposition catalyst, where R is a 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 or different monovalent radicals selected from the group consisting of C.sub.(1-12) alkyl radicals, C.sub.(1-12) alkoxy radicals, halogen and hydrogen.
Claim 4
Dependent Claim
110 words
01 to 1% by weight of the UV curable composition of a urethane decomposition catalyst, where R is a 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 or different monovalent radicals selected from the group consisting of C.sub.(1-12) alkyl radicals, C.sub.(1-12) alkoxy radicals, halogen and hydrogen.
Claim 5
Dependent Claim
20 words
A UV curable composition in accordance with claim 1 where the organic resin is prepared from a polymerizable acrylic monomer.
Claim 6
Dependent Claim
17 words
A UV curable composition in accordance with claim 1 where the organic resin is an epoxy resin.
Claim 7
Dependent Claim
15 words
A UV curable composition in accordance with claim 1, where the catalyst is dibutyltin dilaurate.
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) | 1982-12-17 | 1983-06-18 | 1983-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-12-17 | 1987-06-18 | 1987-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-12-17 | 1991-06-18 | 1991-12-18 | $7700.00 | Window Closed / Lapsed |