Patent US4014830A successfully refreshed from Google Patents.
US4014830A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Acrylate or methacrylate modified alkyd resins and epoxy esters
Assignee: Shell USA Inc
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Filing: 1975-10-30
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Granted: 1977-03-29
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Expires: 1995-10-30
Abstract
Abstract Air drying epoxy esters and alkyd resins are blended with polyacrylate esters of polyols. Coatings made from these blends have improved air-drying properties over the properties of coatings made from the unmodified resins, particularly in hardness and recoatability after overnight dry.
Inventors
- 👤 Robert D. Rumfield
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 07:44
CPC Classifications
C; C08; C08F; C08F299/00; C08F299/02; C08F299/026; C08G; C08G63/00; C08G63/02; C08G63/12; C08G63/46; C08G63/48; C09; C09D; C09D167/00; C09D167/08
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
42 words
A coating composition comprising an air-drying unsaturated fatty acid alkyd resin or epoxy ester blended with about 1 weight percent to about 10 weight percent, based on the total weight of the blend, of a polyacrylate or polymethacrylate ester of a polyol.
Claim 2
Dependent Claim
42 words
A coating composition comprising an air-drying unsaturated fatty acid alkyd resin or epoxy ester blended with about 1 weight percent to about 10 weight percent, based on the total weight of the blend, of a polyacrylate or polymethacrylate ester of a polyol.
Claim 3
Dependent Claim
27 words
The composition of claim 1 wherein the polyacrylate or polymethacrylate ester of the polyol is present in the amount of about 3 to about 7 weight percent.
Claim 4
Dependent Claim
45 words
The composition of claim 1 wherein the epoxy ester is an ester of an unsaturated drying oil fatty acid and a glycidyl ether of a dihydric phenol containing about 35 to about 60 weight percent, based on the weight of the ester, of reacted acid.
Claim 5
Dependent Claim
21 words
The composition of claim 3 wherein the acid is present in the amount of about 40 to about 50 weight percent.
Claim 6
Dependent Claim
23 words
The composition of claim 1 wherein the alkyd resin contains about 30 to about 80 weight percent reacted unsaturated drying oil fatty acid.
Claim 7
Dependent Claim
21 words
The composition of claim 5 wherein the acid is present in the amount of about 50 to about 65 weight percent.
Claim 8
Dependent Claim
12 words
The composition of claim 1 wherein the polyacrylate ester is hexanediol diacrylate.
Claim 9
Dependent Claim
12 words
The composition of claim 1 wherein the polyacrylate is trimethylol propane triacrylate.
Claim 10
Dependent Claim
11 words
The composition of claim 1 wherein the polyacrylate is pentaerythritol triacrylate.
Claim 11
Dependent Claim
61 words
A coating composition, dissolved in an aromatic hydrocarbon, comprising a tall oil fatty acid ester of a glycidyl polyether of bisphenol A containing 40 to 50 weight percent, based on the weight of the ester, of the reacted tall oil fatty acid blended with about 3 to about 7 weight percent, based on the weight of the blend, of trimethylolpropane triacrylate.
Claim 12
Dependent Claim
61 words
A coating composition, dissolved in an aromatic hydrocarbon, comprising a tall oil fatty acid ester of a glycidyl polyether of bisphenol A containing 40 to 50 weight percent, based on the weight of the ester, of the reacted tall oil fatty acid blended with about 3 to about 7 weight percent, based on the weight of the blend, of trimethylolpropane triacrylate.
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) | 1980-03-28 | 1980-09-27 | 1981-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-03-28 | 1984-09-27 | 1985-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-03-28 | 1988-09-27 | 1989-03-29 | $7700.00 | Window Closed / Lapsed |