Patent US4042547A successfully refreshed from Google Patents.
US4042547A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Environmentally harmless stoving lacquer systems based on alkyd resins containing condensed monohydric alcohols
Assignee: Bayer AG
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Filing: 1976-08-16
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Granted: 1977-08-16
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Expires: 1996-08-16
Abstract
Abstract A water-insoluble condensation product of a polyalcohol, a dicarboxylic acid, from 5 to 35% by weight of a saturated monohydric alcohol having from 1 to 3 carbon atoms and, optionally, a monocarboxylic acid, said condensation product being soluble in lacquer solvents and useful for producing stoving lacquers.
Inventors
- 👤 Bernd-Ulrich Kaiser
- 👤 Rolf Dhein
- 👤 Hans Rudolph
- 👤 Rolf Kuchenmeister
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:46
CPC Classifications
C; C08; C08G; C08G63/00; C08G63/02; C08G63/12; C08G63/46; C08G63/50
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
101 words
A water-insoluble product consisting essentially of the condensation product of an aliphatic or cycloaliphatic polyalcohol having 2 to 15 carbon atoms, an aromatic, cycloaliphatic or aliphatic dicarboxylic acid, from 0 to 40% by weight of a monocarboxylic acid and from 5 to 35% by weight of a saturated monohydric alcohol having from 1 to 3 carbon atoms, said condensation product having a molecular weight of between 500 and 2000, an acid number of 3 to 40 and an OH number of 40 to 300 and being soluble in lacquer solvents selected from the group consisting of hydrocarbons, alcohols, esters and ketones.
Claim 2
Dependent Claim
101 words
A water-insoluble product consisting essentially of the condensation product of an aliphatic or cycloaliphatic polyalcohol having 2 to 15 carbon atoms, an aromatic, cycloaliphatic or aliphatic dicarboxylic acid, from 0 to 40% by weight of a monocarboxylic acid and from 5 to 35% by weight of a saturated monohydric alcohol having from 1 to 3 carbon atoms, said condensation product having a molecular weight of between 500 and 2000, an acid number of 3 to 40 and an OH number of 40 to 300 and being soluble in lacquer solvents selected from the group consisting of hydrocarbons, alcohols, esters and ketones.
Claim 3
Dependent Claim
31 words
The condensation product of claim 1 wherein said condensation product contains 5 to 12% by weight of said saturated monohydric alcohol and 22 to 35% by weight of a monocarboxylic acid.
Claim 4
Dependent Claim
22 words
The condensation product of claim 2 wherein 80 to 100% by weight of said monocarboxylic acid is a soya oil fatty acid.
Claim 5
Dependent Claim
20 words
The condensation product of claim 1 wherein said condensation product contains 20 to 35% by weight of a monocarboxylic acid.
Claim 6
Dependent Claim
22 words
The condensation product of claim 4 wherein 90 to 100% by weight of said monocarboxylic acid is a soya oil fatty acid.
Claim 7
Dependent Claim
15 words
The condensation product of claim 2 wherein said OH number is from 60 to 150.
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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) | 1980-08-15 | 1981-02-14 | 1981-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-08-15 | 1985-02-14 | 1985-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-08-15 | 1989-02-14 | 1989-08-16 | $7700.00 | Window Closed / Lapsed |