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US2861054A
Expired / Lapsed
US
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Water repellents techniques
Assignee: Ellis Foster Co
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Filing: 1953-06-03
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Granted: 1958-11-18
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Expires: 1973-06-03
Abstract
No abstract record available.
Inventors
- 👤 John B Rust
- 👤 William B Canfield
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 12:22
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/39; D06M15/423
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
115 words
THE METHOD OF MAKING WATER DISPERSIBLE WATER REPELLENTS WHICH CONSISTS ESSENTIALLY IN HEATING A CARBAMIDO COMPOUND SELECTED FROM THE GROUP CONSISTING OF UREAU, THIOUREA, GUANIDINE, DICYANDIAMINE, AND MELAMINE, A FATTY ACID AMIDE OF AT LEAST NINE CARBON ATOMS HAVING REPLACEABLE HYDROGEN ON THE NITROGEN, AND A WATER SOLUBLE AMINO LOWER ALKYL SULFONIC ACID, IN THE WATER SOLUBLE AMINO LOWER ALKYL SULFONIC ACID, IN THE PRESENCE OF FORMALDEHYDE, TO FORM A WATER DISPERSIBLE COMPONENTS IN THE MOLAR RATIOS OF 1-3 MOLES OF SAID CARBAMIDO COMPOUND, 2 MOLES OF FATTY ACID AMIDE PER MOLE OF CARBAMIDO COMPOUND, 1 TO 3 MOLES OF AMINOALKYL SULFONIC ACID PER MOLE OF CARBAMIDO COMPOUND AND FORMALDEHYDE TO METHYLOLATE THE CARBAMIDO COMPOUND.
Claim 2
Independent Claim
115 words
THE METHOD OF MAKING WATER DISPERSIBLE WATER REPELLENTS WHICH CONSISTS ESSENTIALLY IN HEATING A CARBAMIDO COMPOUND SELECTED FROM THE GROUP CONSISTING OF UREAU, THIOUREA, GUANIDINE, DICYANDIAMINE, AND MELAMINE, A FATTY ACID AMIDE OF AT LEAST NINE CARBON ATOMS HAVING REPLACEABLE HYDROGEN ON THE NITROGEN, AND A WATER SOLUBLE AMINO LOWER ALKYL SULFONIC ACID, IN THE WATER SOLUBLE AMINO LOWER ALKYL SULFONIC ACID, IN THE PRESENCE OF FORMALDEHYDE, TO FORM A WATER DISPERSIBLE COMPONENTS IN THE MOLAR RATIOS OF 1-3 MOLES OF SAID CARBAMIDO COMPOUND, 2 MOLES OF FATTY ACID AMIDE PER MOLE OF CARBAMIDO COMPOUND, 1 TO 3 MOLES OF AMINOALKYL SULFONIC ACID PER MOLE OF CARBAMIDO COMPOUND AND FORMALDEHYDE TO METHYLOLATE THE CARBAMIDO COMPOUND.
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) | 1961-11-17 | 1962-05-19 | 1962-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-11-17 | 1966-05-19 | 1966-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-11-17 | 1970-05-19 | 1970-11-18 | $7700.00 | Window Closed / Lapsed |