US2816865A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Baking enamels from alkyd resins and polymethylol derivatives of substituted guanamines
Assignee: Monsanto Chemicals Ltd
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Filing: 1954-03-16
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Granted: 1957-12-17
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Expires: 1974-03-16
Abstract
No abstract record available.
Inventors
- 👤 Stuart H Rider
- 👤 Anas Thomas
- 👤 George L Fraser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:59
CPC Classifications
C; C09; C09D; C09D167/00; C09D167/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
130 words
AN ALCOHOL-FREE BAKING ENAMEL CONSISTING ESSENTIALLY OF A FREE-FLOWING SOLUTION OF ABOUT 70-95 PARTS BY WEIGHT OF AN ALKYD RESIN HAVING AN OIL LENGTH OF ABOUT 30-60% AND AN ACID NUMBER OF LESS THAN ABOUT 15 AND, CORRESPONDINGLY, ABOUT 30-5 PARTS BY WEIGHT OF A COMPOUND TAKEN FROM THE GROUP CONSISTING OF DI-,TRI- AND TETRAMETHYLOL DERIVATIVES OF ARYL GUANAMINES AND ARALKYL GUANAMINES HAVING 1-4 CARBON ATOMS IN THE ALKYL RADICAL IN A SOLVENT TAKEN FROM THE GROUP CONSISTING OF AROMATIC HYDROCARBON SOLVENTS AND MIXTURES OF A MAJOR AMOUNT OF AN AROMATIC HYDROCARBON SOLVENT WITH A MINOR AMOUNT OF AN ALIPHATIC HYDROCARBON SOLVENT, SAID COMPOUNDS BEING CRYSTALLINE MATERIALS PREPARED BY HEATING 1 MOL OF THE GUANAMINE WITH 2-4 MOLS OF FORMALDEHYDE AT TEMPERATURES OF 50-100* C. IN AN AGUEOUS ALKALINE SOLUTION.
Claim 2
Dependent Claim
130 words
AN ALCOHOL-FREE BAKING ENAMEL CONSISTING ESSENTIALLY OF A FREE-FLOWING SOLUTION OF ABOUT 70-95 PARTS BY WEIGHT OF AN ALKYD RESIN HAVING AN OIL LENGTH OF ABOUT 30-60% AND AN ACID NUMBER OF LESS THAN ABOUT 15 AND, CORRESPONDINGLY, ABOUT 30-5 PARTS BY WEIGHT OF A COMPOUND TAKEN FROM THE GROUP CONSISTING OF DI-,TRI- AND TETRAMETHYLOL DERIVATIVES OF ARYL GUANAMINES AND ARALKYL GUANAMINES HAVING 1-4 CARBON ATOMS IN THE ALKYL RADICAL IN A SOLVENT TAKEN FROM THE GROUP CONSISTING OF AROMATIC HYDROCARBON SOLVENTS AND MIXTURES OF A MAJOR AMOUNT OF AN AROMATIC HYDROCARBON SOLVENT WITH A MINOR AMOUNT OF AN ALIPHATIC HYDROCARBON SOLVENT, SAID COMPOUNDS BEING CRYSTALLINE MATERIALS PREPARED BY HEATING 1 MOL OF THE GUANAMINE WITH 2-4 MOLS OF FORMALDEHYDE AT TEMPERATURES OF 50-100* C. IN AN AGUEOUS ALKALINE SOLUTION.
References Cited (Backward Citations)
US2579980A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-12-16 | 1961-06-17 | 1961-12-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-12-16 | 1965-06-17 | 1965-12-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-12-16 | 1969-06-17 | 1969-12-17 | $7700.00 | Window Closed / Lapsed |