Patent US4164459A successfully refreshed from Google Patents.
US4164459A
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U.V.-curable coating composition
Assignee: Akzo NV
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Filing: 1978-10-11
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Granted: 1979-08-14
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Expires: 1998-10-11
Abstract
Abstract A coating composition is disclosed which is curable under the influence of ultraviolet light and which comprises a U.V.-curable binder, a photoinitiator and as accelerator a tetrahydro-1,3-oxazine compound and/or an oxazolidine compound. The U.V.-curable binder is preferably an adduct containing at least one isocyanate group of (a) an acrylic or methacrylic hydroxy ester having 5 to 20 carbon atoms and (b) a polyisocyanate having 4 to 40 carbon atoms and 2 to 4 isocyanate groups.
Inventors
- 👤 Arie Noomen
- 👤 Egbert Wolters
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 06:26
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/004; G03F7/027; G03F7/028; G03F7/031; C; C08; C08F; C08F2/00; C08F2/46; C08F2/48; C08F2/50; C08K; C08K5/00; C08K5/16; C08K5/34; C08K5/35; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31511; Y10T428/31529; Y10T428/31678; Y10T428/31692; Y10T428/31699
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
41 words
In a coating composition which is curable under the influence of ultraviolet light and is based on a U.V.-curable binder, a photoinitiator and a nitrogen-containing accelerator, the improved composition which comprises as an accelerator a tetrahydro-1,3-oxazine compound or an oxazolidine compound.
Claim 2
Dependent Claim
41 words
In a coating composition which is curable under the influence of ultraviolet light and is based on a U.V.-curable binder, a photoinitiator and a nitrogen-containing accelerator, the improved composition which comprises as an accelerator a tetrahydro-1,3-oxazine compound or an oxazolidine compound.
Claim 3
Dependent Claim
16 words
The coating composition of claim 1 wherein the tetrahydro-1,3-oxazine compound or the oxazolidine compound is polyfunctional.
Claim 4
Dependent Claim
18 words
The coating composition of claim 1 wherein the tetrahydro-1,3-oxazine compound or the oxazolidine compound is of low-molecular weight.
Claim 5
Dependent Claim
13 words
The coating composition of claim 1 wherein the oxazolidine compound is 2-isopropyl oxazolidine.
Claim 6
Dependent Claim
13 words
The coating composition of claim 1 wherein the tetrahydro-1,3-oxazine compound is di-(tetrahydro-1,3-oxazinyl)-propyl adipate.
Claim 7
Dependent Claim
30 words
The coating composition of claim 1 wherein the oxazolidine compound includes one or more oxazolidine groups which are attached to an oligomer chain or polymer chain by the nitrogen atom.
Claim 8
Dependent Claim
14 words
The coating composition of claim 6 wherein the oxazolidine compound is dioxazolidinyl ethyl adipate.
Claim 9
Dependent Claim
15 words
The coating composition of claim 6 wherein the oxazolidine compound is an acrylate oxazolidine resin.
Claim 10
Dependent Claim
33 words
The coating composition of claim 1 wherein the tetrahydro-1,3-oxazine compound or the oxazolidine compound is present in the composition in an amount of 0.1 to 100% by weight, based on the U.V.-curable binder.
Claim 11
Dependent Claim
49 words
The coating composition of claim 1 wherein the U.V.-curable binder is an adduct containing at least one isocyanate group of (a) an acrylic or methacrylic hydroxy ester having 5 to 20 carbon atoms and (b) a polyisocyanate having 4 to 40 carbon atoms and 2 to 4 isocyanate groups.
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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) | 1982-08-13 | 1983-02-12 | 1983-08-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-08-13 | 1987-02-12 | 1987-08-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-08-13 | 1991-02-12 | 1991-08-14 | $7700.00 | Window Closed / Lapsed |