US3202635A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Modified melamine resins
Assignee: Henkel AG and Co KGaA
•
Filing: 1960-09-28
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Granted: 1965-08-24
•
Expires: 1980-09-28
Abstract
No abstract record available.
Inventors
- 👤 Galinke Joachim
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:15
CPC Classifications
C; C08; C08G; C08G12/00; C08G12/02; C08G12/26; C08G12/34; C08F; C08F18/00; C08F18/02; C08F18/04; C08G12/263; C08G12/266; C08G12/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
75 words
A MODIFIED MELAMINE RESIN, COMPRISING MELAMINE AND FORMALDEHYDE, IN A MOLAR RATIO OF 1:2 TO 1:6, AND APPROXIMATELY 0.0005 TO 0.1 MOL, PER MOL MELAMINE, OF A MELAMINE HAVING AT LEAST ONE ALKYL RADICAL SUBSTITUTED BY A HYDROXYL GROUP, SAID ALKYL RADICAL HAVING 2-4 CARBON ATOMS BOUND ON A NITROGEN ATOM IN THE TRIAZINE RING OF SAID SUBSTITUTED MELAMINE, AND SAID HYDROXYL GROUP BEING SEPARATED FROM SAID NITROGEN ATOM BY AT LEAST TWO CARBON ATOMS.
Claim 2
Dependent Claim
75 words
A MODIFIED MELAMINE RESIN, COMPRISING MELAMINE AND FORMALDEHYDE, IN A MOLAR RATIO OF 1:2 TO 1:6, AND APPROXIMATELY 0.0005 TO 0.1 MOL, PER MOL MELAMINE, OF A MELAMINE HAVING AT LEAST ONE ALKYL RADICAL SUBSTITUTED BY A HYDROXYL GROUP, SAID ALKYL RADICAL HAVING 2-4 CARBON ATOMS BOUND ON A NITROGEN ATOM IN THE TRIAZINE RING OF SAID SUBSTITUTED MELAMINE, AND SAID HYDROXYL GROUP BEING SEPARATED FROM SAID NITROGEN ATOM BY AT LEAST TWO CARBON ATOMS.
References Cited (Backward Citations)
US2454495A
Cited
US2377866A
Cited
US2508875A
Cited
US2852489A
Cited
GB775808A
Cited
US2740737A
Cited
US3044973A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-08-23 | 1969-02-22 | 1969-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-23 | 1973-02-22 | 1973-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-23 | 1977-02-22 | 1977-08-24 | $7700.00 | Window Closed / Lapsed |