US4299867A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ambient hydrocurable coating and adhesives compositions
Assignee: Rohm and Haas Co
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Filing: 1980-01-30
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Granted: 1981-11-10
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Expires: 2000-01-30
Abstract
Abstract The present invention is concerned with, as a hydrocurable composition, a mixture of an oxazolidine-functional polymer and a compound of a monomeric or polymeric character having a plurality of acryloxy groups. The first-mentioned polymer contains a plurality of pendant groups containing 2,2-dialkyl oxazolidine groups. The mixture of these two components can be stored under anhydrous conditions in a closed container without co-reaction so that a one-pot or one-package composition can be made up with many conventional ingredients of coating compositions other than aqueous components and stored without gelling until the time for application when the composition may be applied at ambient temperature and humidity whereupon reaction between the main two components mentioned above occurs in the film deposited and the film set up.
Inventors
- 👤 William D. Emmons
- 👤 Wayne E. Feely
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 07:33
CPC Classifications
C; C09; C09J; C09J4/00; C09J4/06; C08; C08F; C08F265/00; C08F265/04; C08F291/00; C09D; C09D4/00; C09D4/06
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
87 words
An ambient condition hydrocurable composition, suitable for coating and impregnating purposes, comprising a mixture of (1) a soluble addition polymer containing a plurality of pendant groups containing a 2,2-dialkyl-oxazolidine or a 2,2-cycloalkyloxazolidine group and (2) at least one polyethylenically unsaturated compound, monomeric or polymeric in character, having at least two unsaturated acryloxy groups, the ratio of component (2) to component (1) being in the range of 0.2 to 3.5 equivalents of unsaturated acryloxy group in component (2) per equivalent of potential secondary amine nitrogen in component (1).
Claim 2
Dependent Claim
87 words
An ambient condition hydrocurable composition, suitable for coating and impregnating purposes, comprising a mixture of (1) a soluble addition polymer containing a plurality of pendant groups containing a 2,2-dialkyl-oxazolidine or a 2,2-cycloalkyloxazolidine group and (2) at least one polyethylenically unsaturated compound, monomeric or polymeric in character, having at least two unsaturated acryloxy groups, the ratio of component (2) to component (1) being in the range of 0.2 to 3.5 equivalents of unsaturated acryloxy group in component (2) per equivalent of potential secondary amine nitrogen in component (1).
Claim 3
Dependent Claim
16 words
A composition according to claim 1 wherein the mixture of components (1) and (2) is anhydrous.
Claim 4
Dependent Claim
30 words
A composition according to claim 1 wherein the component (1) is a copolymer of a mixture of monoethylenically unsaturated monomers comprising at least 1% by weight of N-(meth)acryloxyalkyl-2,2-dialkyloxazolidine or N-(meth)acryloxyalkyl-2,2-alkylene-oxazolidine.
Claim 5
Dependent Claim
40 words
A composition according to claim 1 wherein the relative proportions of component (2) to component (1) are such as to provide at least one equivalent of acryloxy unsaturation in component (2) to each equivalent of amine nitrogen in component (1).
Claim 6
Dependent Claim
88 words
A method of applying a composition according to claim 1 which comprises the step of spreading the composition on a surface of a substrate to be coated, impregnated, or both, at ambient temperature and relative humidity whereupon the moisture in the atmosphere causes hydrolysis of the oxazolidine ring with liberation of a ketone and the conversion of the tertiary amine nitrogen of the ring to a secondary amine nitrogen and crosslinking of component (1) by Michael addition to the acryloxy groups in component (2) occurs at ambient temperature.
Claim 7
Dependent Claim
24 words
A method according to claim 5 wherein the ambient temperature cure is supplemented by a cure at elevated temperature up to about 70° C.
Claim 8
Dependent Claim
43 words
A composition according to claim 1 wherein the relative proportions of component (2) to component (1) are such as to provide at least about one to two equivalents of acryloxy unsaturation in component (2) to each equivalent of amine nitrogen in component (1).
References Cited (Backward Citations)
US4043956A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-11-09 | 1985-05-11 | 1985-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-11-09 | 1989-05-11 | 1989-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-11-09 | 1993-05-11 | 1993-11-10 | $7700.00 | Window Closed / Lapsed |