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US5484849A
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Air curing polymer composition
Assignee: Rohm and Haas Co
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Filing: 1994-12-30
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Granted: 1996-01-16
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Expires: 2014-12-30
Abstract
Abstract An air curing polymer composition is disclosed which contains acetoacetate functional polymer and an autoxidizable material. The composition cures on exposure to oxygen. One pack stable ambient curing compositions and a method of stabilizing acetoacetate functional groups to prevent hydrolysis are also disclosed.
Inventors
- 👤 Daniel A. Bors
- 👤 Alvin C. Lavoie
- 👤 William D. Emmons
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:31
CPC Classifications
C; C08; C08L; C08L33/00; C08L33/04; C08L33/06; C08L33/08; C08F; C08F246/00; C08F220/00; C08F220/02; C08F220/10; C08F220/26; C08F220/28; C08F220/283; C08F8/00; C08F8/06; C08F8/30; C08F8/32; C08F2810/00; C08F2810/20; C08F2810/30; C08F2810/50; C08J; C08J7/00; C08J7/12
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
74 words
A self-crosslinking film-forming composition consisting essentially of a vinyl polymer containing pendant acetoacetate functionality and a polyunsaturated aerobic radical source which generates a free radical flux on exposure of the composition to oxygen, wherein said aerobic radical source is selected from the group consisting of drying oils, drying oil fatty acids, alkyd resins containing drying oils and simple esters of drying oil fatty acids, provided that said composition contains substantially no conventional polymerization initiator.
Claim 2
Dependent Claim
74 words
A self-crosslinking film-forming composition consisting essentially of a vinyl polymer containing pendant acetoacetate functionality and a polyunsaturated aerobic radical source which generates a free radical flux on exposure of the composition to oxygen, wherein said aerobic radical source is selected from the group consisting of drying oils, drying oil fatty acids, alkyd resins containing drying oils and simple esters of drying oil fatty acids, provided that said composition contains substantially no conventional polymerization initiator.
Claim 3
Dependent Claim
13 words
A film-forming composition according to claim 1 which further comprises a metal drier.
Claim 4
Dependent Claim
24 words
A film-forming composition according to claim 1 or 2 wherein said vinyl polymer containing pendant acetoacetate functionality is soluble in water or water-co-solvent mixtures.
Claim 5
Dependent Claim
24 words
A film-forming composition according to claim 1 or 2 wherein said vinyl polymer containing pendant acetoacetate functionality is prepared by emulsion or dispersion polymerization.
Claim 6
Dependent Claim
36 words
A film-forming composition according to claim 3 in which the pendant acetoacetate functionality has been converted to pendant enamine functionality by reaction with a molar excess of ammonia or a primary amine capable of enamine formation.
Claim 7
Dependent Claim
25 words
A composition according to claim 5 wherein the primary amine is selected from the group consisting of ethanolamine, methyl amine, isopropyl amine and mixtures thereof.
Claim 8
Dependent Claim
36 words
A film-forming composition according to claim 4 in which the pendant acetoacetate functionality has been converted to pendant enamine functionality by reaction with a molar excess of ammonia or a primary amine capable of enamine formation.
Claim 9
Dependent Claim
24 words
A composition according to claim 7 wherein the primary amine is selected from the group consisting of ethanolamine, methyl amine, isopropylamine and mixtures thereof.
Claim 10
Dependent Claim
39 words
A composition according to claim 1 or 2 wherein the pendant acetoacetate functionality is incorporated in the vinyl polymer by polymerization of a monomer selected from the group consisting of allyl acetoacetate, acetoacetoxyethyl methacrylate, acetoacetoxypropyl methacrylate, and acetoacetoxybutyl methacrylate.
Claim 11
Dependent Claim
22 words
A composition according to claim 9 wherein the vinyl polymer contains from 0.5 to 100 percent of the acetoacetate monomer by weight.
Claim 12
Dependent Claim
22 words
A composition according to claim 9 wherein the vinyl polymer contains from 1 to 40 percent of the acetoacetate monomer by weight.
Claim 13
Dependent Claim
25 words
A film-forming composition according to claim 1 or 2 wherein said vinyl polymer containing pendant acetoacetate functionality is a solution polymer in non-aqueous organic solvent.
Claim 14
Dependent Claim
25 words
A composition according to claim 1 or claim 2 wherein the drying oil fatty acid is from 0.5 to 6 wt % of the composition.
Claim 15
Dependent Claim
30 words
A composition according to claim 1 or 2 wherein the polyunsaturated aerobic radical source is a drying oil present at from 0.5 to 15 percent of the composition by weight.
Claim 16
Dependent Claim
22 words
A composition according to claim 1 or 2 where the vinyl polymer is a homopolymer or copolymer of acetoacetoxyethyl methacrylate or acrylate.
Claim 17
Dependent Claim
20 words
A composition according to claim 2 wherein the metal drier is incorporated at 0.01 to 1% metal content by weight.
Claim 18
Dependent Claim
14 words
A composition according to claim 16 wherein the metal drier is a cobalt salt.
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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) | 1999-01-15 | 1999-07-17 | 2000-01-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-01-15 | 2003-07-17 | 2004-01-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-01-15 | 2007-07-17 | 2008-01-16 | $7700.00 | Window Closed / Lapsed |