Patent DE1292885B successfully refreshed from Google Patents.
Patent US2582730A successfully refreshed from Google Patents.
US2582730A
Expired / Lapsed
US
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Modified aminoplast compositions and products
Assignee: Wyeth Holdings LLC
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Filing: 1950-11-25
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Granted: 1952-01-15
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Expires: 1970-11-25
Abstract
No abstract record available.
Inventors
- 👤 Henry P Wohnsiedler
- 👤 Edward L Kropa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:27
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/16; C08K5/34; C08K5/3467; C08K5/3477; C08K5/3492; C08K5/34926; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31551; Y10T428/31627
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
130 words
A COMPOSITION OF MATTER COMPRISING (1) A PRODUCT OF REACTION OF INGREDIENTS COMPRISING (A) AN ALDEHYDE AND (B) A MONOMERIC AMIDOGEN COMPOUND CONTAINING NOT LESS THAN TWO AMIDOGEN GROUPINGS EACH HAVING AT LEAST ONE HYDROGEN ATOM ATTACHED TO THE AMIDOGEN NITROGEN ATOM, AND (2) AT LEAST ONE SUBSTANCE, OF THE CLASS CONSISTING OF POLYETHYLENE MELAMINES, ALCOHOL-REACTION PRODUCTS OF A POLYETHYLENE MELAMINE AND AMINE-REACTION PRODUCTS OF A POLYETHYLENE MELAMINE, THE INGREDIENTS OF (1) AND (2) BEING EMPLOYED IN A WEIGHT RATIO OF FROM 25 TO 97 PER CENT OF THE FORMER TO FROM 3 TO 75 PER CENT OF THE LATTER, AND THE AFOREMENTIONED POLYETHYLENE MELAMINE BEING A POLYAMINO-S-TRIAZINE WHEREIN AT LEAST TWO OF THE AMINO NITROGEN ATOMS EACH HAS ONE ETHYLENE GROUP ATTACHED THERETO INSTEAD OF THE TWO HYDROGEN ATOMS.
Claim 2
Dependent Claim
130 words
A COMPOSITION OF MATTER COMPRISING (1) A PRODUCT OF REACTION OF INGREDIENTS COMPRISING (A) AN ALDEHYDE AND (B) A MONOMERIC AMIDOGEN COMPOUND CONTAINING NOT LESS THAN TWO AMIDOGEN GROUPINGS EACH HAVING AT LEAST ONE HYDROGEN ATOM ATTACHED TO THE AMIDOGEN NITROGEN ATOM, AND (2) AT LEAST ONE SUBSTANCE, OF THE CLASS CONSISTING OF POLYETHYLENE MELAMINES, ALCOHOL-REACTION PRODUCTS OF A POLYETHYLENE MELAMINE AND AMINE-REACTION PRODUCTS OF A POLYETHYLENE MELAMINE, THE INGREDIENTS OF (1) AND (2) BEING EMPLOYED IN A WEIGHT RATIO OF FROM 25 TO 97 PER CENT OF THE FORMER TO FROM 3 TO 75 PER CENT OF THE LATTER, AND THE AFOREMENTIONED POLYETHYLENE MELAMINE BEING A POLYAMINO-S-TRIAZINE WHEREIN AT LEAST TWO OF THE AMINO NITROGEN ATOMS EACH HAS ONE ETHYLENE GROUP ATTACHED THERETO INSTEAD OF THE TWO HYDROGEN ATOMS.
References Cited (Backward Citations)
US2524727A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-01-14 | 1955-07-16 | 1956-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-01-14 | 1959-07-16 | 1960-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-01-14 | 1963-07-16 | 1964-01-15 | $7700.00 | Window Closed / Lapsed |