US4251406A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water-borne alkyds
Assignee: EIDP Inc
•
Filing: 1978-12-18
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Granted: 1981-02-17
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Expires: 1998-12-18
Abstract
Abstract Water-borne alkyds containing polybasic acids, a sulfonated aromatic acid, or equivalent, e.g., the sodium salt of 5-sulfoisophthalic acid, polyhydric alcohols, and fatty acids, are prepared in a two-step process by first reacting the carboxylic acids and the alcohols until a clear solution is obtained and then adding and reacting the fatty acid to achieve a desired relatively low acid number. These alkyd products are water dispersible without the need for amine stabilization and form protective films on substrates.
Inventors
- 👤 Philip Heiberger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 08:45
CPC Classifications
C; C08; C08G; C08G63/00; C08G63/68; C08G63/688; C09; C09D; C09D167/00; C09D167/08
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
23 words
A water-compatible, air-curable, film-forming alkyd resin carrying, on an aromatic nucleus, 0.1-10% by weight of --SO 3 X, X being sodium or potassium.
Claim 2
Dependent Claim
23 words
A water-compatible, air-curable, film-forming alkyd resin carrying, on an aromatic nucleus, 0.1-10% by weight of --SO 3 X, X being sodium or potassium.
Claim 3
Dependent Claim
18 words
An alkyd resin of claim 1 wherein the aromatic nucleus is that of a monobasic or dibasic acid.
Claim 4
Dependent Claim
15 words
An alkyd resin of claim 2 wherein the aromatic nucleus is that of 5-sulfoisophthalic acid.
Claim 5
Dependent Claim
16 words
An alkyd resin of claim 2 wherein the aromatic nucleus is that of a sulfobenzoic acid.
Claim 6
Dependent Claim
10 words
A coating composition comprising an alkyd resin of claim 1.
Claim 7
Dependent Claim
10 words
A coating composition of claim 5 comprising additionally a pigment.
Claim 8
Dependent Claim
60 words
The process of preparing an alkyd resin wherein aromatic carboxylic acid or equivalent, part of which carries the --SO 3 X group, X being sodium or potassium, is reacted with polyhydric alcohol until about half the water produced is removed and the solution clarifies; and a drying oil or drying oil fatty acid is added and the reaction is completed.
Claim 9
Dependent Claim
60 words
The process of preparing an alkyd resin wherein aromatic carboxylic acid or equivalent, part of which carries the --SO 3 X group, X being sodium or potassium, is reacted with polyhydric alcohol until about half the water produced is removed and the solution clarifies; and a drying oil or drying oil fatty acid is added and the reaction is completed.
Claim 10
Dependent Claim
14 words
The process of claim 7 wherein the water is removed with an azeotroping solvent.
Claim 11
Dependent Claim
27 words
The process of claim 7 wherein sulfonated isophthalic acid or equivalent carrying the --SO 3 X group in the 5-position, X being sodium or potassium, is employed.
Claim 12
Dependent Claim
42 words
The process of claim 7 wherein phthalic anhydride and a salt of 5-isophthalic acid are reacted with trimethylolpropane with removal of water until the reaction mixture clarifies and the mixture is subsequently reacted with a drying oil or drying oil fatty acid.
Claim 13
Dependent Claim
12 words
The process of claim 7 wherein sulfobenzoic acid or equivalent is employed.
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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) | 1984-02-17 | 1984-08-18 | 1985-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-02-17 | 1988-08-18 | 1989-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-02-17 | 1992-08-18 | 1993-02-17 | $7700.00 | Window Closed / Lapsed |