Patent US2557653A successfully refreshed from Google Patents.
US2557653A
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Water-repellent composition stabilized with a tertiary heterocyclic aromatic amine
Assignee: EIDP Inc
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Filing: 1949-12-23
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Granted: 1951-06-19
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Expires: 1969-12-23
Abstract
No abstract record available.
Inventors
- 👤 Green Larry Quentin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:55
CPC Classifications
D; D06; D06M; D06M13/00; D06M13/322; D06M13/35
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
105 words
A WATER-REPELLENT COMPOSITION, BEING AN ALCOHOL DISPERSION OF QUATERNARY PYRIDINIUM SALTS OF A METHYLOL MELAMINE-METHYLOL FATTY ACID AMIDE CONDENSATION MIXTURE OBTAINED BY CONDENSING A METHYLOL FATTY ACID AMIDE WITH FROM 4.5% TO 36% BY WEIGHT OF METHYLOL MELAMINE IN AN ALCOHOL SOLUTION OF FROM 0.5 TO 4 MOLS OF HYDROCHLORIC ACID PER MOL OF METHYLOL MELAMINE EMPLOYED, THE ALCOHOL EMPLOYED IN THE DISPERSION BEING OF THE CLASS CONSISTING OF WATER SOLUBLE PRIMARY AND SECONDARY ALCOHOLS, SAID COMPOSITION CONTAINING FROM 2 1/2% TO 12% OF FRE TERTIARY HETEROCYCLIC AROMATIC AMINE CONTAINING FROM 5 TO 10 CARBON ATOMS AND FROM 40% TO 50% OF SAID CONDENSATION MIXTURE.
Claim 2
Dependent Claim
105 words
A WATER-REPELLENT COMPOSITION, BEING AN ALCOHOL DISPERSION OF QUATERNARY PYRIDINIUM SALTS OF A METHYLOL MELAMINE-METHYLOL FATTY ACID AMIDE CONDENSATION MIXTURE OBTAINED BY CONDENSING A METHYLOL FATTY ACID AMIDE WITH FROM 4.5% TO 36% BY WEIGHT OF METHYLOL MELAMINE IN AN ALCOHOL SOLUTION OF FROM 0.5 TO 4 MOLS OF HYDROCHLORIC ACID PER MOL OF METHYLOL MELAMINE EMPLOYED, THE ALCOHOL EMPLOYED IN THE DISPERSION BEING OF THE CLASS CONSISTING OF WATER SOLUBLE PRIMARY AND SECONDARY ALCOHOLS, SAID COMPOSITION CONTAINING FROM 2 1/2% TO 12% OF FRE TERTIARY HETEROCYCLIC AROMATIC AMINE CONTAINING FROM 5 TO 10 CARBON ATOMS AND FROM 40% TO 50% OF SAID CONDENSATION MIXTURE.
References Cited (Backward Citations)
US2505649A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-06-18 | 1954-12-18 | 1955-06-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-06-18 | 1958-12-18 | 1959-06-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-06-18 | 1962-12-18 | 1963-06-19 | $7700.00 | Window Closed / Lapsed |